Dual Depth Sensor Calibration using Flashlight - Revision history

Andrew: /* Introduction */

2013-10-10T18:42:25Z

Introduction

Andrew: /* When to Use */

2013-10-10T18:19:02Z

When to Use

Andrew: /* Introduction */

2013-10-10T18:16:20Z

Introduction

Andrew at 18:53, 7 September 2013

2013-09-07T18:53:27Z

Andrew at 18:41, 7 September 2013

2013-09-07T18:41:22Z

Andrew: Created page with "Starting from version '''2.4.1.156''', iPi Mocap Studio supports new approach to calibration of dual depth sensor system.
To be described.
"

2013-09-07T16:29:22Z

Created page with "Starting from version '''2.4.1.156''', iPi Mocap Studio supports new approach to calibration of dual depth sensor system. <blockquote>To be described.</blockquote>"

New page

Starting from version '''2.4.1.156''', [[iPi Mocap Studio]] supports new approach to calibration of dual depth sensor system.

<blockquote>To be described.</blockquote>

@@ Line 8: / Line 8: @@
 *: (depth data is used to determine scale automatically)
-<blockquote>Please note that for dual depth sensor configuration you can still use [[User_Guide_for_Dual_Depth_Sensor_Configuration#Calibration|calibration based on 3D plane]].</blockquote>
+<blockquote>Please note that for Dual Depth Sensor configuration you can still use [[User_Guide_for_Dual_Depth_Sensor_Configuration#Calibration|calibration based on 3D plane]].</blockquote>
 === How to Use ===

@@ Line 56: / Line 56: @@
 === When to Use ===
 * When flat rectangular veneer/plywood/cardboard/pasteboard/foamboard of required size is not available.
 * In some cases calibration based on flashlight marker produces more precise results in comparison with 3d plane based calibration.

@@ Line 8: / Line 8: @@
 *: (depth data is used to determine scale automatically)
-<blockquote>Please note that you can still use [[User_Guide_for_Dual_Depth_Sensor_Configuration#Calibration|calibration based on 3D plane]].</blockquote>
+<blockquote>Please note that for dual depth sensor configuration you can still use [[User_Guide_for_Dual_Depth_Sensor_Configuration#Calibration|calibration based on 3D plane]].</blockquote>
-−
 === How to Use ===

@@ Line 33: / Line 33: @@
 * Run [[iPi Recorder]].
 * Color stream should be recorded along with depth data. That's why only modes "(depth+color)" can be used.
-<center><table><tr><td>[[Image:iPi Recorder video mode.png|400px]]</td></tr></table></center>
+<center><table><tr><td>[[Image:iPi Recorder video mode.png|500px]]</td></tr></table></center>
 * Avoid bright lightening and white objects on background during recording of calibration video.
 * Start recording.
@@ Line 51: / Line 51: @@
 ** '''Good Frames Count''' should be at least '''100''' ('''500''' and higher are recommended values).
 ** '''Average Position Error (meters)''' should be less than '''0.100''' ('''0.050''' and lower are recommended values).
 * Save results using '''Save scene...''' button on '''Scene''' tab.
+<center><table><tr><td>[[Image:Dual-kinect-calibration-save.png]]</td></tr></table></center>

← Older revision		Revision as of 18:41, 7 September 2013
Line 1:		Line 1:
−	~~Starting from version '''2.4.1.156''', [[iPi Mocap Studio]] supports new approach to calibration of dual depth sensor system.~~	+	=== Introduction ===

		+	Starting from version '''2.4.1.156''', [[iPi Mocap Studio]] supports new approach to calibration of multiple depth sensors system. Now you can use '''flashlight''' or other small glowing marker to perform calibration for depth sensors. This new calibration procedure is very similar to one used for [[User_Guide_for_Multiple_PlayStation_Eye_Cameras_Configuration#Calibration\|Multiple_PlayStation Eye Cameras Configuration]]. But in case of depth sensors the overall workflow is simpler:
		+	* There is no need to touch floor by flashlight during recording.
		+	* No marking of points as ground in [[iPi Mocap Studio]].
		+	*: (depth data is used to detect ground plane automatically)
		+	* No manual adjustments of scene scale in [[iPi Mocap Studio]].
		+	*: (depth data is used to determine scale automatically)

−	<blockquote>To be ~~described~~.</blockquote>	+	<blockquote>Please note that you can still use [[User_Guide_for_Dual_Depth_Sensor_Configuration#Calibration\|calibration based on 3D plane]].</blockquote>
		+
		+
		+	=== How to Use ===
		+
		+
		+	'''Glowing Marker'''
		+
		+	Mini Maglite flashlight is recommended for calibration. This is a very common flashlight in US and many other countries. Removing flashlight reflector converts it into an ideal glowing marker easily detectable by motion capture software.
		+	<center><table><tr><td>[[Image:Maglite.jpg]]</td></tr></table></center>
		+	If you cannot get a Mini Maglite, you can use some other similar flashlight.
		+	<center><table><tr><td>[[Image:Noname_flashlight.jpg\|250px]]</td></tr></table></center>
		+
		+
		+	'''Depth Sensors Setup'''
		+
		+	You can use both configurations:
		+	* [[User_Guide_for_Dual_Depth_Sensor_Configuration#The_first_configuration\|Angle between sensors is between 60 and 90 degrees]].
		+	* [[User_Guide_for_Dual_Depth_Sensor_Configuration#The_second_configuration\|Angle between sensors in near to 180 degrees that means that sensors are placed opposite to each other]].
		+
		+
		+	'''Recording'''
		+
		+	* Run [[iPi Recorder]].
		+	* Color stream should be recorded along with depth data. That's why only modes "(depth+color)" can be used.
		+	<center><table><tr><td>[[Image:iPi Recorder video mode.png\|400px]]</td></tr></table></center>
		+	* Avoid bright lightening and white objects on background during recording of calibration video.
		+	* Start recording.
		+	* Move the marker slowly through your entire capture volume (front-top-right-bottom-left-back-top-right-bottom-left). Start from top and move the marker in a descending spiral motion.
		+	<blockquote>'''Tip.''' The exact trajectory of the marker is not so important, just try to cover the whole capture volume, or at least its perimeter.</blockquote>
		+	<blockquote>'''Tip.''' You should make the marker visible to both depth sensors at all times. Hold the marker in the straight arm away from your body.</blockquote>
		+
		+
		+	'''Processing'''
		+
		+	* Open recorded calibration video in [[iPi Mocap Studio]].
		+	* Choose '''Calibration project''' type in '''New Project Wizard'''.
		+	* Adjust Region-of-Interest so that glowing marker is visible at the beginning and at the end.
		+	* Click '''Calibrate Based on Flashlight Marker''' button.
		+	* Wait while automatic calibration is performing.
		+	* Check resulted statistics:
		+	** '''Good Frames Count''' should be at least '''100''' ('''500''' and higher are recommended values).
		+	** '''Average Position Error (meters)''' should be less than '''0.100''' ('''0.050''' and lower are recommended values).
		+	* Save results using '''Save scene...''' button on '''Scene''' tab.
		+
		+
		+
		+	=== When to Use ===
		+
		+	* When flat rectangular veneer/plywood/cardboard/pasteboard/foamboard of required size is not available.
		+	* In some cases calibration based on flashlight marker produces more precise results in comparison with 3d plane based calibration.

Dual Depth Sensor Calibration using Flashlight - Revision history

Andrew: /* Introduction */

Andrew: /* When to Use */

Andrew: /* Introduction */

Andrew at 18:53, 7 September 2013

Andrew at 18:41, 7 September 2013

Andrew: Created page with "Starting from version '''2.4.1.156''', iPi Mocap Studio supports new approach to calibration of dual depth sensor system. To be described."

Andrew: Created page with "Starting from version '''2.4.1.156''', iPi Mocap Studio supports new approach to calibration of dual depth sensor system.
To be described.
"