Eyesis4Pi Calibration - Revision history

Oleg at 18:27, 22 December 2016

2016-12-22T18:27:12Z

Oleg at 17:04, 5 October 2012

2012-10-05T17:04:04Z

Oleg at 16:58, 5 October 2012

2012-10-05T16:58:19Z

Oleg: /* Links */

2012-10-04T23:30:39Z

‎Links

Oleg: /* Links */

2012-10-04T23:26:19Z

‎Links

Oleg at 23:24, 4 October 2012

2012-10-04T23:24:39Z

Oleg: Created page with "==IMU== {| |Fig.1 Positive rotation angles in the calibration machine |valign='top'|[[File:Goniometer.jpeg|400px|thum..."

2012-09-28T19:29:08Z

Created page with "==IMU== {| |500px|thumb|Fig.1 Positive rotation angles in the calibration machine |valign='top'|[[File:Goniometer.jpeg|400px|thum..."

New page

==IMU==
{|
|[[File:Eyesis-with-cradle-pattern_small_2.jpeg|500px|thumb|Fig.1 Positive rotation angles in the calibration machine]]
|valign='top'|[[File:Goniometer.jpeg|400px|thumb|Fig.2 Goniometer]]
|valign='top'|[[File:Eyesis4pi axes.jpeg|400px|thumb|Fig.3 IMU in Eyesis4π]]
|}

During the calibration process the goniometer rotates the camera about 2 axes (y & z on Fig.1) by precisely known angles. To calibrate IMU one needs to match the goniometer angles with the IMU data.
Notes:
* The images are taken in the middle of the rest state of the goniometer.
* IMU log contains 3 types of events: IMU data packet, GPS data packet, Image captured.
* Images timestamps are recorded in the IMU log.

Calibration process output examples:
===[http://community.elphel.com/files/imu/00:0E:64:08:1B:89/ Camera 00:0E:64:08:1B:89 IMU calibration data]:===
<font size='2'>
* IMU data: [http://community.elphel.com/files/imu/00:0E:64:08:1B:89/ test.log-00001...00015]
* Goniometer angles: [http://community.elphel.com/files/imu/00:0E:64:08:1B:89/ImageSet_orientation.csv ImageSet_orientation.csv]
Axial - angle about the z-axis in degrees (positive rotation is shown on Fig.1)
Tilt - angle about the y-axis in degrees (positive rotation is shown on Fig.1)
* Other goniometer and camera parameters: [http://community.elphel.com/files/imu/00:0E:64:08:1B:89/Camera_parameters.csv Camera_parameters.csv]
</font>
==Links==
* Code for parsing IMU log: [http://community.elphel.com/files/imu/read_imu_log.php_txt PHP ], [http://community.elphel.com/files/imu/java/ Java].

← Older revision		Revision as of 17:04, 5 October 2012
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	* [[Eyesis4Pi_Calibration\|Calibration Process]]		* [[Eyesis4Pi_Calibration\|Calibration Process]]
	[[Category:Eyesis4Pi]]		[[Category:Eyesis4Pi]]
		+	[[Category:IMU]]

← Older revision		Revision as of 16:58, 5 October 2012
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	* [[Eyesis4Pi_data_structure\|Data Structure Description]]		* [[Eyesis4Pi_data_structure\|Data Structure Description]]
	* [[Eyesis4Pi_Calibration\|Calibration Process]]		* [[Eyesis4Pi_Calibration\|Calibration Process]]
		+	[[Category:Eyesis4Pi]]

← Older revision		Revision as of 23:30, 4 October 2012
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	* [[Eyesis4pi_Post-Processing\|User Guide - Post-processing: ImageJ]]		* [[Eyesis4pi_Post-Processing\|User Guide - Post-processing: ImageJ]]
	* [[Eyesis4Pi_data_structure\|Data Structure Description]]		* [[Eyesis4Pi_data_structure\|Data Structure Description]]
		+	* [[Eyesis4Pi_Calibration\|Calibration Process]]

← Older revision		Revision as of 23:26, 4 October 2012
Line 29:		Line 29:
	* [[Eyesis4pi_Post-Processing\|User Guide - Post-processing: ImageJ]]		* [[Eyesis4pi_Post-Processing\|User Guide - Post-processing: ImageJ]]
	* [[Eyesis4Pi_data_structure\|Data Structure Description]]		* [[Eyesis4Pi_data_structure\|Data Structure Description]]
−	* [[Eyesis4Pi_Calibration\|Calibration Process]]

← Older revision		Revision as of 23:24, 4 October 2012
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	==Links==		==Links==
	* Code for parsing IMU log: [http://community.elphel.com/files/imu/read_imu_log.php_txt PHP ], [http://community.elphel.com/files/imu/java/ Java].		* Code for parsing IMU log: [http://community.elphel.com/files/imu/read_imu_log.php_txt PHP ], [http://community.elphel.com/files/imu/java/ Java].
		+	* [[Elphel_Eyesis4Pi\|Eyesis4Pi Main Article]]
		+	* [[Eyesis4Pi_workflow\|Workflow]]
		+	* [[Eyesis4Pi_User_Guide\|User Guide - Recording]]
		+	* [[Eyesis4Pi_Footage_Procedures_page\|User Guide - Post-Processing: Footage Procedures]]
		+	* [[Eyesis4pi_Post-Processing\|User Guide - Post-processing: ImageJ]]
		+	* [[Eyesis4Pi_data_structure\|Data Structure Description]]
		+	* [[Eyesis4Pi_Calibration\|Calibration Process]]

@@ Line 1: / Line 1: @@
-==IMU==
+==Goniometer and IMU==
 {|
-|[[File:Eyesis-with-cradle-pattern_small_2.jpeg|500px|thumb|Fig.1 Positive rotation angles in the calibration machine]]
+|[[File:Eyesis-with-cradle-pattern_small_2.jpeg|380px|thumb|Fig.1 Positive rotation angles in the calibration machine]]
 |valign='top'|[[File:Goniometer.jpeg|400px|thumb|Fig.2 Goniometer]]
 |valign='top'|[[File:Eyesis4pi axes.jpeg|400px|thumb|Fig.3 IMU in Eyesis4&pi;]]
 |}
 During the calibration process the goniometer rotates the camera about 2 axes (y & z on Fig.1) by precisely known angles. To calibrate IMU one needs to match the goniometer angles with the IMU data.