NEW!  Version 3 of iPi Motion Capture is available. iPi Motion Capture 3 delivers new features for improved workflow including support of Kinect 2, improved arms tracking, simplified calibration and others. Read more >>

This documentation corresponds to version 2 of iPi Motion Capture. The latest documentation for version 3 can be found at https://docs.ipisoft.com/

FAQ

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== General Questions ==
 
== General Questions ==
  
−
'''Q: What does "iPi DMC" means?'''
+
'''Q: How the ''iPi'' is meaned to be pronounced?'''
  
−
'''A:''' "iPi DMC" is the abbreviation of "iPi Desktop Motion Caption". It consists of:
+
'''A:''' It's /ʌɪ'pʌɪ/. The second syllable is the letter 'π' of the Greek alphabet, as you can see in our logo.
−
* iPi Recorder - a tool for recording video from web cameras and depth sensors;
+
−
* iPi Studio - main software for processing pre-recorded video and exporting result animation.
+
  
  
−
'''Q: Is it really markerless, work with USB cameras and runs on regular equipment?'''
+
'''Q: How come Kinect games and OpenNI don't track motions nearly as good as this? Is this like a better software?'''
  
−
'''A:''' Exactly.
+
'''A:''' Yes. We use our own computer vision algorithms that give higher tracking accuracy. But this comes at a cost of slower processing time (not real-time).
  
  
 
'''Q: How does it work?'''
 
'''Q: How does it work?'''
  
−
'''A:''' It's just magic. This magic became possible due to tricky computer vision algorithms and GPU-accelerated calculations.
+
'''A:''' By means of tricky computer vision algorithms and GPU-accelerated calculations.
−
 
+
−
 
+
−
'''Q: Why do you think this is the best motion capture in the market?'''
+
−
 
+
−
'''A:''' This solution is both very convenient and affordable:
+
−
* It is optical markerless, so you do not need special costumes with markers or sensors
+
−
* It woks with casual clothes
+
−
* It works with real-life cluttered backgrounds so you do not need dedicated studio for capture sessions
+
−
* It is portable. Real "motion capture in a backpack". You can set it up from scratch for 30-40 minutes, including calibration. Experss Edition set-up takes 10 minutes.
+
−
 
+
−
 
+
−
'''Q: Why is it so cheap? Maybe it is just low-end solution with poor tracking quality?'''
+
−
 
+
−
'''A:''' Not at all. Traditional motion capture systems use expensive hardware to operate, that's why they're so much more expensive than iPi. iPi DMC tracking quality is competitive with other mocaps in the market.
+
−
 
+
−
 
+
−
'''Q: If iPi DMC is so great as you say, why are people still using other mocaps?'''
+
−
 
+
−
'''A:''' Our main disadvantage is currently tracking speed. It is not enough for real-time tracking. And we do not have some additional features like props or multi-person tracking. But these are just temporary drawbacks. We're actively working on them, and our customers base is constantly growing.
+
−
 
+
−
 
+
−
'''Q: Why should I believe all that you're saying about your product?'''
+
−
 
+
−
'''A:''' You shouldn't. You can download 30-days free trial and check it yourself. You cannot do that with other mocap systems.
+
  
  
 
'''Q: What technical support options are available?'''
 
'''Q: What technical support options are available?'''
  
−
'''A:''' Currently we offer email-based technical support. Please write to ipi@ipisoft.com  
+
'''A:''' Currently we offer email-based technical support. You should receive tech support contact details with your purchase. Also you can get tech support via our [http://forum.ipisoft.com User Forum]. 
  
  
Line 50: Line 24:
  
 
'''A:''' No. Price includes software only. Customers have to purchase cameras and other equipment separately.
 
'''A:''' No. Price includes software only. Customers have to purchase cameras and other equipment separately.
 +
 +
 +
'''Q: What does "iPi DMC" means?'''
 +
 +
'''A:''' "iPi DMC" is the abbreviation of "iPi Desktop Motion Capture". The system consists of two main components:
 +
* [[iPi Recorder]] — a tool for recording video from web cameras and depth sensors;
 +
* [[iPi Mocap Studio]] — software application for processing pre-recorded video and exporting resulting animation.
  
 
== Purchase FAQ ==
 
== Purchase FAQ ==
Line 55: Line 36:
 
'''Q: How can I buy?'''
 
'''Q: How can I buy?'''
  
−
'''A:''' You can buy online: http://ipisoft.com/sales.php. Note that Express Edition is in beta status, thus you can't buy it now - use free trial instead or buy Basic edition.
+
'''A:''' You can buy online: http://ipisoft.com/store. Please find the list of available payment options [http://www.ipisoft.com/store/purchasing/ here].
  
  
 
'''Q: Do you have any discounts?'''
 
'''Q: Do you have any discounts?'''
  
−
'''A:''' Yes, we always offer volume discounts, educational discounts and have special promotion campaigns from time to time. Information about discounts can be found at http://ipisoft.com/sales.php
+
'''A:''' Yes, we always offer volume discounts, educational discounts and have special promotion campaigns from time to time. Information about discounts can be found at http://ipisoft.com/store
  
  
Line 68: Line 49:
  
  
−
'''Q: Can I get educational discount?'''
+
'''Q: Who is eligible for educational discount?'''
  
−
'''A:''' If you're Qualified Student or Faculty Member from approved academic institution, or a Non-profit Organization, you're are eligible to purchase iPi Soft products under the terms of the Educational Licensing Program. Please look at http://ipisoft.com/sales.php for details.
+
'''A:''' iPi Soft educational discounted software is available for students, faculty members, and institutions. Please look at http://ipisoft.com/store/edu for details.
  
  
 
'''Q: How can I get educational discount?'''
 
'''Q: How can I get educational discount?'''
  
−
'''A:''' Please refer to http://ipisoft.com/sales.php for instruction how to apply.
+
'''A:''' Please refer to http://ipisoft.com/store/edu for instruction how to apply.
  
  
 
'''Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?'''
 
'''Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?'''
  
−
'''A:''' Yes, you can. We do not impose limitations on use of educational license. The only thing we require is your eligibility to Educational Licensing Program at the time of purchase.
+
'''A:''' No, sorry. The educational license is limited to use in an educational context, either for self-education or use in an educational institution for teaching purposes. It cannot be used for commercial, professional or for-profit purposes.
  
  
Line 86: Line 67:
  
 
'''A:''' Please put the promotion code into "Your coupon code" field at the bottom of on-line order from, and push "Update" button to make sure the price was changed.
 
'''A:''' Please put the promotion code into "Your coupon code" field at the bottom of on-line order from, and push "Update" button to make sure the price was changed.
 +
 +
 +
'''Q: I want to pay in a currency other than USD. But I found that the currency conversion rate is much higher than what I expected to have. Why is that?'''
 +
 +
'''A:''' We use Share-It international payments gateway to sell our software. If you want to pay in currency other than product price currency (USD) they add about 10% to the cost as their insurance from currency rates fluctuations. Proper way to avoid this overhead expense — please make order in USD (you can select order currency at the top of the order form). If you pay by card or PayPal, internal rates of payment system will be applied. They are usually very close to real exchange rates.
  
 
== Product Features ==
 
== Product Features ==
  
−
'''Q: What is the difference between Express Edition and other editions?'''  
+
'''Q: Which configuration do you recommend: [[User Guide for Dual Depth Sensor Configuration|Dual depth sensors]] or [[User Guide for Multiple PlayStation Eye Cameras Configuration|Multiple Sony PS Eye]]?'''  
  
−
'''A:''' Express Edition:
+
'''A:''' There is no straighforward answer to this question, there are pros and cons each option: [[Dual Depth Sensors vs Sony PS Eye Comparison]]
−
* supports only 1 Microsoft Kinect sensor
+
−
* capture volume will be 7 by 7 feet (approx. 2 by 2 meters)
+
−
* you will not be able to track complex motions that include rotations because of self occlusion.
+
−
* but you will not need multi-camera system calibration, that makes Express Edition much easier in operation compared to other editions (that are multi-camera)
+
−
Basic and Standard Editions:
+
−
* support of 1 Kinect is included in Basic and Standard Editions as well
+
−
* you will also have bigger capture volume - 20 by 20 feet (approx. 7 by 7 meters)
+
−
* and you will be able to capture more complex motions, including rotations with multi-camera set-up
+
  
  
−
'''Q: What is the difference between Express Edition and Standard Edition?'''
+
'''Q: What is the difference between editions?'''  
 +
 
 +
'''A:''' See [[Editions Comparison|detailed editions comparison]].
  
−
'''A:''' The only difference is maximum number of cameras (4 for Basic, 6 for Standard). 6-cameras set-up will allow you to track wider range of complex
 
−
motions (including rotations, like fighting, dancing etc.) with good quality (more robust, more accurate).
 
  
  
 
'''Q: Is tracking realtime?'''
 
'''Q: Is tracking realtime?'''
  
−
'''A:''' Not yet. You should capture video first and process the video offline after that. Speed of processing depends on Graphics Card and vary from 5 to 0.25 frames per second.
+
'''A:''' Not yet. You should capture video first and process the video offline after that. Speed of processing depends on video card (this is a [http://en.wikipedia.org/wiki/GPGPU GPGPU] application so [[Cameras and accessories#Video_Card|a fast video card is recommended]]).  
  
  
−
'''Q: Does iPi DMC support facial mocap?'''
+
'''Q: Does iPi Motion Capture support facial mocap?'''
  
−
'''A:''' No.
+
'''A:''' No, not yet.
  
  
−
'''Q: Can hands/fingers be tracked by iPi DMC?'''
+
'''Q: Can hands be tracked by iPi Motion Capture?'''
  
−
'''A:''' No. Consumer cameras resolution is not enough for that.
+
'''A:''' Yes. Hands tracking is possible with the help of [[Getting started with motion controllers|motion controllers]].
  
  
−
'''Q: Hm. And what about head tracking?'''
 
  
−
'''A:''' Also no. But we plan to add head tracking in future versions.
+
'''Q: Can fingers be tracked by iPi Motion Capture?'''
  
 +
'''A:''' No, not yet. Resolution of consumer-class cameras is not enough for that. But you can use build-in keyframing tools for fingers.
  
−
'''Q: What output formats are supported by iPi DMC?'''
 
  
−
'''A:''' COLLADA, BVH, SMD. Also iPi DMC can export BVH optimized for 3d Max Biped, Poser, MotionBuilder and iClone.
+
'''Q: What about head tracking?'''
  
 +
'''A:''' Head tracking is supported both with optical tracking, and with the help of [[Using motion controller for head tracking|motion controllers]].
  
−
'''Q: And what about FBX?'''
 
  
−
'''A:''' Current version doesn’t support this format. But you can use Autodesk's free [http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112&id=10775855 FBX Converter] to convert your data between FBX and COLLADA format.
+
'''Q: What output formats are supported by iPi Motion Capture?'''
  
 +
'''A:''' [[iPi Mocap Studio]] can export animations in many popular formats. For a full list please see [[Animation export and motion transfer]].
  
−
'''Q: Can I retarget result animation to my own character?'''
 
  
−
'''A:''' Yes. iPi Studio has built-in motion transfer. For more info see [[Animation export and motion transfer]].
+
'''Q: Is FBX format supported?'''
  
 +
'''A:''' Yes.
  
−
'''Q: Can I use 2 or 3 Kinects with iPi DMC?'''
 
  
−
'''A:''' No. Current version supports only one Kinect sensor.
+
'''Q: Can I retarget captured animation to my own character?'''
  
 +
'''A:''' Yes. [[iPi Mocap Studio]] has built-in motion transfer. For more info please see [[Animation export and motion transfer]].
  
−
'''Q: Can Kinect with other cameras in multi-camera set-up?'''
 
  
−
'''A:''' No. Current version supports only one Kinect sensor OR multi-camera set-up.
+
'''Q: Can I use two or three depth sensors with iPi Motion Capture?'''
  
 +
'''A:''' You can use two depth sensors (Kinect/Xtion/Carmine) with iPi Motion Capture (supported in [http://ipisoft.com/software/basic-edition Basic] and [http://ipisoft.com/software/standard-edition Standard] editions). Three depth sensors is supported in version 2 in experimental mode. Using more depth sensors is currently not feasible due to sensors mutual interference.
  
−
'''Q: Can I use different USB cameras in multi-camera set-up?'''
 
  
−
'''A:''' No. Cameras should be the same model.
+
'''Q: Can I use Kinect 2.0 iPi Motion Capture?'''
  
−
== Installation & Activation, Licensing policy ==
+
'''A:''' Kinect 2 for Xbox is not possible to use, as it does not have any connector for PC (only proprietary connector for Xbox One). We will include support of Kinect 2 for Windows as soon as it is released (expected in summer 2014).
 +
 
 +
 
 +
'''Q: Can I mix Kinect with other cameras in multi-camera set-up?'''
 +
 
 +
'''A:''' You can mix Microsoft Kinect, ASUS Xtion (Live), and PrimeSense Carmine depth sensors. But you cannot mix depth sensors with color cameras. However, for better results, it is strongly recommended to use devices of the same model in multi-camera configuration.
 +
 
 +
 
 +
'''Q: Can I use USB cameras of different models in multi-camera set-up?'''
 +
 
 +
'''A:''' Not recommended. For best results all cameras should be the same model. Moreover, we strongly recommend to use Sony PS Eye camera, as it has much better quality for markerless mocap.
 +
 
 +
 
 +
'''Q: Can I use high-resolution cameras to improve tracking quality?'''
 +
 
 +
'''A:''' No. For our software higher resolution does not give much benefit, but highly increases required data bandwidth. As this is markerless technology, we do not need to track small markers, and 640 x 480 resolution will work as good as HD. For motion capture fps (frames per second) is much more critical parameter for tracking accuracy. [http://en.wikipedia.org/wiki/PlayStation_Eye Sony PS Eye] camera, that allows to record at 60 fps with low distortions, is currently most recommended model.
 +
 
 +
== Installation and Activation, Licensing policy ==
  
 
'''Q: Do you offer free trial?'''  
 
'''Q: Do you offer free trial?'''  
  
−
'''A:''' Yes. 30-days free trial is available for download from http://www.ipisoft.com/downloads_index.php
+
'''A:''' Yes. 30-days free trial is available for download from http://ipisoft.com/download/
  
  
 
'''Q: What are trial version limitations?'''  
 
'''Q: What are trial version limitations?'''  
  
−
'''A:''' Trial is full-functional, you only can export 5 seconds of animation.  
+
'''A:''' Trial has full functionality of the [http://ipisoft.com/software/basic-edition Basic Edition].  
  
  
 
'''Q: How can I install the system?'''  
 
'''Q: How can I install the system?'''  
  
−
'''A:''' Please download iPi Recorder, iPi Studio from http://www.ipisoft.com/downloads_index.php . Run the installer and follow installation instructions. iPi Recorder is used to capture video, iPi Studio is used for tracking.
+
'''A:''' Follow the installation instructions for [[iPi Recorder Installation|iPi Recorder]] and [[iPi Mocap Studio Installation|iPi Mocap Studio]]. '''iPi Recorder''' is used to capture video, '''iPi Mocap Studio''' is used for tracking.
  
  
−
'''Q: The system is requesting me to enter trial key. Where can I get it?'''  
+
'''Q: How can I get and activate the license key for trial?'''  
  
−
'''A:''' To obtain trial key please register to our user community forum: http://ipisoft.com/forum/ucp.php?mode=register. After registration please login to forum and take trial license key from forum’s “User Control Panel”.
+
'''A:''' Just run [[iPi Mocap Studio]], and follow on-screen instructions.
 
   
 
   
  
−
'''Q: I haven't received activation e-mail after registration. What should I do?'''  
+
'''Q: How can I purchase a full license key?'''
  
−
'''A:''' If this happens:
+
'''A:''' Please purchase the product on-line http://ipisoft.com/store/ . You will get license key by e-mail.
−
::# Make sure that this e-mail is not in “Spam” folder of your mail client.
+
−
::# Check that you have entered correct e-mail address.
+
−
::# Try to resend activation email. To do it, go to login page and click “Resend activation e-mail” link.
+
−
::# If none of above actions help, please report the problem to ipi@ipisoft.com.
+
−
 
+
−
 
+
−
'''Q: How can I get license key?'''
+
−
 
+
−
'''A:''' Please purchase the product on-line http://www.ipisoft.com/sales.php . You will get license key by e-mail.
+
  
  
 
'''Q: Can I install the system on several computers with one license key?'''
 
'''Q: Can I install the system on several computers with one license key?'''
  
−
'''A:''' No. According to our licensing policy, you can use 1 license key only for one computer, even if you do not plan to use the system on several computers simultaneously.
+
'''A:''' No. According to our [http://wiki.ipisoft.com/License licensing policy], one license key is strictly for use on a single computer. But you can transfer your license key from one computer to another.
  
  
 
'''Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?'''
 
'''Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?'''
  
−
'''A:''' Yes, you can. We do not impose limitations on use of educational license. The only thing we require is your eligibility to Educational Licensing Program at the time of purchase.
+
'''A:''' No, sorry. The educational license is limited to use in an educational context, either for self-education or use in an educational institution for teaching purposes. It cannot be used for commercial, professional or for-profit purposes.
  
  
 
'''Q: Can I give my license key to a friend or collegue?'''
 
'''Q: Can I give my license key to a friend or collegue?'''
  
−
'''A:''' Please do not do that. If they use your license, this will be forbidding the terms of our license agreement.  
+
'''A:''' Please do not do that. This is a violation of the licensing terms. Your license key can be banned if you abuse license terms.  
  
  
 
'''Q: Do I need to pay for new versions of software?'''
 
'''Q: Do I need to pay for new versions of software?'''
  
−
'''A:''' Purchasing the license, you get 1 year of free updates within the same major version (e.g. 1.x).
+
'''A:''' Purchased license includes at least one year of free updates within the same major version (e.g. 2.x). Next major version is given for free to customers who made their purchase within 3 months before release. Others will be given 50% discount within 6 months after next version release.
  
−
== System Requirements ==
+
 
 +
 
 +
'''Q: Do I need to pay for Biomech Add-on?'''
 +
 
 +
'''A:''' Yes, Biomech Add-on requires separate license key. You can [http://ipisoft.com/software/biomech-add-on/ order it] or run 30-days free trial.
 +
 
 +
== System Requirements and Hardware ==
  
 
=== All editions ===
 
=== All editions ===
Line 218: Line 209:
 
'''Q: What hardware do I need to use the system?'''
 
'''Q: What hardware do I need to use the system?'''
  
−
'''A:''' Basically, you need:
+
'''A:''' You need:
 
* PC with DirectX10-compatible graphics card (supporting Shader Model 4.0)
 
* PC with DirectX10-compatible graphics card (supporting Shader Model 4.0)
 
* Cameras (type and number of cameras depend on edition you use)
 
* Cameras (type and number of cameras depend on edition you use)
 
* Cables to connect cameras to computer
 
* Cables to connect cameras to computer
 
* Tripods to position cameras (optional)
 
* Tripods to position cameras (optional)
−
* For 5 or 6 cameras set-up you may also need additianl USB controller
+
* Depending on type and number of cameras you may also need additional USB controller
−
Details can be found here: [[Cameras and accessories]]
+
 
 +
Details can be found in our Wiki articles:
 +
 
 +
{{:System Requirements Links}}
  
  
 
'''Q: What is the cost of hardware necessary to use the system?'''
 
'''Q: What is the cost of hardware necessary to use the system?'''
  
−
'''A:''' We suppose you already have PC and DirectX 10-compatible GPU (with Shader Model 4.0 support).
+
'''A:''' Presuming you already have a PC with DirectX 10-compatible GPU (with Shader Model 4.0 support),
 +
 
 
For Express Edition:
 
For Express Edition:
−
* You will need Kinect sensor, the cost is around $150
+
* You will need Kinect sensor, the cost is around $110
 +
For Bacis Edition (4 Sony PS Eye cameras):
 +
* Sony PS Eye cameras + USB cables, the total cost is around $160
 
* Tripods (optional), the cost is around $50 (4 items)
 
* Tripods (optional), the cost is around $50 (4 items)
−
For Bacis Edition (4 cameras):
+
For Bacis Edition (Dual-Kinect configuration):
−
* Sony PS Eye camras + USB cables, the cost is around $180
+
* 2 Kinect sensors, the price is around $120 (you need 2 items)
−
For Standard Edition (6 cameras):
+
* Kinect floor stand (optional), the price is around $15 (2 items)
−
* Sony PS Eye camras + USB cables, the cost is around $270
+
For Standard Edition (5 — 8 Sony PS Eye cameras):
 +
* Sony PS Eye camras + USB cables, the total cost is around $240 for 6 cameras configuration
 
* USB controller, the cost is around $30
 
* USB controller, the cost is around $30
−
* Tripods (optional), the cost is around $80 (6 items)
+
* Tripods (optional), the cost is around $80 (5 — 8 items)
−
* SSD drive for video recording, the cost may be around $600
+
* (optional) extra HDD for video recording (so that you do not record on your system drive), the cost may be around $50
  
  
 +
'''Q: Is there a version for Mac?'''
  
−
'''Q: Is there version for Mac?'''
+
'''A:''' To run this software on a Mac you need to install Windows on your Mac using [http://support.apple.com/kb/HT1461 Boot Camp] or similar solution.
  
−
'''A:''' To run this software on Mac you need to install Windows on it using [http://www.apple.com/macosx/compatibility/ Boot Camp] or [http://www.parallels.com/products/desktop/ Parallels Desktop for Mac]
+
=== Kinect Support (All  Editions) ===
  
−
=== Express Edition ===
+
'''Q:''' '''What drivers for Kinect are used in iPi Motion Capture?'''
  
−
'''Q: What drivers for Kinect are used in iPi DMC?'''
+
'''A:''' On Windows XP and Vista we use a lightweight solution based on the driver from PrimeSense (psdrv3.sys) to communicate with device via USB. Protocol implementation is our own. On Windows 7 and later we can use either the same solution or Microsoft KinectSDK driver (which is recommended).
  
−
'''A:''' We use open source libusb-win32 drivers and library to communicate with device via USB. Protocol implementation is our own.
 
  
 +
'''Q:''' '''Is this driver compatible with OpenNI and Brekel plugin?'''
  
−
'''Q: Is this drivers compatible with OpenNI?'''
+
'''A:''' Yes. If you have already installed PrimeSense's OpenNI drivers for Kinect then there is no need to install drivers again thus you can choose not to install any Kinect drivers during [[iPi Recorder Installation|iPi Recorder Installation]].
  
−
'''A:''' No. iPiRecorder with Kinect support cannot co-exist with PrimeSense's OpenNI drivers and Brekel plugin. If you want to restore PrimeSense's OpenNI drivers and Brekel plugin, you will have to uninstall "iPi LibUSB-win32 Driver Registration for MS Kinect" (see "Uninstall Program" in your Control Panel).
+
=== Basic and Standard Editions ===
  
 +
'''Q: Can I use cameras other than Sony PlayStation 3 Eye?'''
  
−
'''Q: Do you plan to add support for OpenNI?'''
+
'''A:''' Not recommended (although technically possible). Sony PlayStation 3 Eye cameras have [[Cameras and accessories#Cameras|multiple advantages]].
  
−
'''A:''' Yes. As soon as OpenNI drivers for Kinect will be stable and will include support of Kinect’s motor, we’ll add support for them to iPi Recorder.
 
  
−
=== Basic and Standard Editions ===
+
'''Q: What if I use expensive professional high-resolution cameras?'''
  
−
'''Q: Can I use cameras other than Sony PS Eye?'''
+
'''A:''' No. For our software higher resolution does not give much benefit, bit gighly increases required data bandwidth. As this is markerless technology, we do not need to track small markers, and 640 x 480 resolution will work as good as HD. For motion capture fps (frames per second) is much more critical parameter for tracking accuracy. [http://en.wikipedia.org/wiki/PlayStation_Eye Sony PS Eye] camera, that allows to record at 60 fps with low distortions, is currently most recommended model.
  
−
'''A:''' Yes. We support any USB camera. But Sony PS Eye cameras are currently most suitable for motion capture among consumer cameras available in the market. Sony PS Eye allows to obtain high-quality video at 60 fps that is critical for tracking quality.
+
== How-to ==
  
 +
'''Q: How do I change scene orientation? For example, what if I want my 3D character to stand in the coordinate system origin (0, 0, 0) and face Z-axis direction?'''
  
−
'''Q: What if I use expensive professional high-resolution cameras?'''
+
'''A:''' Click the "Recenter Coordinate System on Character" button on "Scene" tab, or check the "Recenter coordinate system on character in first frame" option on "Export" tab.
−
 
+
−
'''A:''' This does not make much sense. 640 x 480 resolution is enough for tracking. You will not get any benefits if you use expensive cameras.
+

Latest revision as of 17:27, 25 February 2014

Contents

General Questions

Q: How the iPi is meaned to be pronounced?

A: It's /ʌɪ'pʌɪ/. The second syllable is the letter 'π' of the Greek alphabet, as you can see in our logo.


Q: How come Kinect games and OpenNI don't track motions nearly as good as this? Is this like a better software?

A: Yes. We use our own computer vision algorithms that give higher tracking accuracy. But this comes at a cost of slower processing time (not real-time).


Q: How does it work?

A: By means of tricky computer vision algorithms and GPU-accelerated calculations.


Q: What technical support options are available?

A: Currently we offer email-based technical support. You should receive tech support contact details with your purchase. Also you can get tech support via our User Forum.


Q: Does the price include hardware?

A: No. Price includes software only. Customers have to purchase cameras and other equipment separately.


Q: What does "iPi DMC" means?

A: "iPi DMC" is the abbreviation of "iPi Desktop Motion Capture". The system consists of two main components:

  • iPi Recorder — a tool for recording video from web cameras and depth sensors;
  • iPi Mocap Studio — software application for processing pre-recorded video and exporting resulting animation.

Purchase FAQ

Q: How can I buy?

A: You can buy online: http://ipisoft.com/store. Please find the list of available payment options here.


Q: Do you have any discounts?

A: Yes, we always offer volume discounts, educational discounts and have special promotion campaigns from time to time. Information about discounts can be found at http://ipisoft.com/store


Q: How can I get volume discount?

A: Just specify number of licenses in "Qty" field at the top of the on-line order form, and push "Update" button to make sure the price was changed.


Q: Who is eligible for educational discount?

A: iPi Soft educational discounted software is available for students, faculty members, and institutions. Please look at http://ipisoft.com/store/edu for details.


Q: How can I get educational discount?

A: Please refer to http://ipisoft.com/store/edu for instruction how to apply.


Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?

A: No, sorry. The educational license is limited to use in an educational context, either for self-education or use in an educational institution for teaching purposes. It cannot be used for commercial, professional or for-profit purposes.


Q: I have promotion coupon code. How can I use it?

A: Please put the promotion code into "Your coupon code" field at the bottom of on-line order from, and push "Update" button to make sure the price was changed.


Q: I want to pay in a currency other than USD. But I found that the currency conversion rate is much higher than what I expected to have. Why is that?

A: We use Share-It international payments gateway to sell our software. If you want to pay in currency other than product price currency (USD) they add about 10% to the cost as their insurance from currency rates fluctuations. Proper way to avoid this overhead expense — please make order in USD (you can select order currency at the top of the order form). If you pay by card or PayPal, internal rates of payment system will be applied. They are usually very close to real exchange rates.

Product Features

Q: Which configuration do you recommend: Dual depth sensors or Multiple Sony PS Eye?

A: There is no straighforward answer to this question, there are pros and cons each option: Dual Depth Sensors vs Sony PS Eye Comparison


Q: What is the difference between editions?

A: See detailed editions comparison.


Q: Is tracking realtime?

A: Not yet. You should capture video first and process the video offline after that. Speed of processing depends on video card (this is a GPGPU application so a fast video card is recommended).


Q: Does iPi Motion Capture support facial mocap?

A: No, not yet.


Q: Can hands be tracked by iPi Motion Capture?

A: Yes. Hands tracking is possible with the help of motion controllers.


Q: Can fingers be tracked by iPi Motion Capture?

A: No, not yet. Resolution of consumer-class cameras is not enough for that. But you can use build-in keyframing tools for fingers.


Q: What about head tracking?

A: Head tracking is supported both with optical tracking, and with the help of motion controllers.


Q: What output formats are supported by iPi Motion Capture?

A: iPi Mocap Studio can export animations in many popular formats. For a full list please see Animation export and motion transfer.


Q: Is FBX format supported?

A: Yes.


Q: Can I retarget captured animation to my own character?

A: Yes. iPi Mocap Studio has built-in motion transfer. For more info please see Animation export and motion transfer.


Q: Can I use two or three depth sensors with iPi Motion Capture?

A: You can use two depth sensors (Kinect/Xtion/Carmine) with iPi Motion Capture (supported in Basic and Standard editions). Three depth sensors is supported in version 2 in experimental mode. Using more depth sensors is currently not feasible due to sensors mutual interference.


Q: Can I use Kinect 2.0 iPi Motion Capture?

A: Kinect 2 for Xbox is not possible to use, as it does not have any connector for PC (only proprietary connector for Xbox One). We will include support of Kinect 2 for Windows as soon as it is released (expected in summer 2014).


Q: Can I mix Kinect with other cameras in multi-camera set-up?

A: You can mix Microsoft Kinect, ASUS Xtion (Live), and PrimeSense Carmine depth sensors. But you cannot mix depth sensors with color cameras. However, for better results, it is strongly recommended to use devices of the same model in multi-camera configuration.


Q: Can I use USB cameras of different models in multi-camera set-up?

A: Not recommended. For best results all cameras should be the same model. Moreover, we strongly recommend to use Sony PS Eye camera, as it has much better quality for markerless mocap.


Q: Can I use high-resolution cameras to improve tracking quality?

A: No. For our software higher resolution does not give much benefit, but highly increases required data bandwidth. As this is markerless technology, we do not need to track small markers, and 640 x 480 resolution will work as good as HD. For motion capture fps (frames per second) is much more critical parameter for tracking accuracy. Sony PS Eye camera, that allows to record at 60 fps with low distortions, is currently most recommended model.

Installation and Activation, Licensing policy

Q: Do you offer free trial?

A: Yes. 30-days free trial is available for download from http://ipisoft.com/download/


Q: What are trial version limitations?

A: Trial has full functionality of the Basic Edition.


Q: How can I install the system?

A: Follow the installation instructions for iPi Recorder and iPi Mocap Studio. iPi Recorder is used to capture video, iPi Mocap Studio is used for tracking.


Q: How can I get and activate the license key for trial?

A: Just run iPi Mocap Studio, and follow on-screen instructions.


Q: How can I purchase a full license key?

A: Please purchase the product on-line http://ipisoft.com/store/ . You will get license key by e-mail.


Q: Can I install the system on several computers with one license key?

A: No. According to our licensing policy, one license key is strictly for use on a single computer. But you can transfer your license key from one computer to another.


Q: I'm a student now and I'm going to purchase iPi products with educational discount. Can I use the product for commercial project and / or after my graduation?

A: No, sorry. The educational license is limited to use in an educational context, either for self-education or use in an educational institution for teaching purposes. It cannot be used for commercial, professional or for-profit purposes.


Q: Can I give my license key to a friend or collegue?

A: Please do not do that. This is a violation of the licensing terms. Your license key can be banned if you abuse license terms.


Q: Do I need to pay for new versions of software?

A: Purchased license includes at least one year of free updates within the same major version (e.g. 2.x). Next major version is given for free to customers who made their purchase within 3 months before release. Others will be given 50% discount within 6 months after next version release.


Q: Do I need to pay for Biomech Add-on?

A: Yes, Biomech Add-on requires separate license key. You can order it or run 30-days free trial.

System Requirements and Hardware

All editions

Q: What hardware do I need to use the system?

A: You need:

  • PC with DirectX10-compatible graphics card (supporting Shader Model 4.0)
  • Cameras (type and number of cameras depend on edition you use)
  • Cables to connect cameras to computer
  • Tripods to position cameras (optional)
  • Depending on type and number of cameras you may also need additional USB controller

Details can be found in our Wiki articles:

iPi Recorder: Single Kinect Sensor Configuration

iPi Recorder: Dual Kinect Sensor Configuration

iPi Recorder: Multiple PlayStation Eye Cameras Configuration

iPi Studio System Requirements


Q: What is the cost of hardware necessary to use the system?

A: Presuming you already have a PC with DirectX 10-compatible GPU (with Shader Model 4.0 support),

For Express Edition:

  • You will need Kinect sensor, the cost is around $110

For Bacis Edition (4 Sony PS Eye cameras):

  • Sony PS Eye cameras + USB cables, the total cost is around $160
  • Tripods (optional), the cost is around $50 (4 items)

For Bacis Edition (Dual-Kinect configuration):

  • 2 Kinect sensors, the price is around $120 (you need 2 items)
  • Kinect floor stand (optional), the price is around $15 (2 items)

For Standard Edition (5 — 8 Sony PS Eye cameras):

  • Sony PS Eye camras + USB cables, the total cost is around $240 for 6 cameras configuration
  • USB controller, the cost is around $30
  • Tripods (optional), the cost is around $80 (5 — 8 items)
  • (optional) extra HDD for video recording (so that you do not record on your system drive), the cost may be around $50


Q: Is there a version for Mac?

A: To run this software on a Mac you need to install Windows on your Mac using Boot Camp or similar solution.

Kinect Support (All Editions)

Q: What drivers for Kinect are used in iPi Motion Capture?

A: On Windows XP and Vista we use a lightweight solution based on the driver from PrimeSense (psdrv3.sys) to communicate with device via USB. Protocol implementation is our own. On Windows 7 and later we can use either the same solution or Microsoft KinectSDK driver (which is recommended).


Q: Is this driver compatible with OpenNI and Brekel plugin?

A: Yes. If you have already installed PrimeSense's OpenNI drivers for Kinect then there is no need to install drivers again thus you can choose not to install any Kinect drivers during iPi Recorder Installation.

Basic and Standard Editions

Q: Can I use cameras other than Sony PlayStation 3 Eye?

A: Not recommended (although technically possible). Sony PlayStation 3 Eye cameras have multiple advantages.


Q: What if I use expensive professional high-resolution cameras?

A: No. For our software higher resolution does not give much benefit, bit gighly increases required data bandwidth. As this is markerless technology, we do not need to track small markers, and 640 x 480 resolution will work as good as HD. For motion capture fps (frames per second) is much more critical parameter for tracking accuracy. Sony PS Eye camera, that allows to record at 60 fps with low distortions, is currently most recommended model.

How-to

Q: How do I change scene orientation? For example, what if I want my 3D character to stand in the coordinate system origin (0, 0, 0) and face Z-axis direction?

A: Click the "Recenter Coordinate System on Character" button on "Scene" tab, or check the "Recenter coordinate system on character in first frame" option on "Export" tab.

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