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USB and Webcam Tests

2012-05-14T06:17:20Z

Is /dev/video0 Created -

←Older revision		Revision as of 06:17, 14 May 2012
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	luvcview and guvcview are display programs that can be used to test a webcam. uvccapture will save an image to the current directory. Each were installed with Synaptic. For example to run guvcview:		luvcview and guvcview are display programs that can be used to test a webcam. uvccapture will save an image to the current directory. Each were installed with Synaptic. For example to run guvcview:
-
-	<pre>
-	eepp@tabor:~$ luvcview
-	luvcview 0.2.6
-
-	SDL information:
-	Video driver: x11
-	A window manager is available
-	Device information:
-	Device path: /dev/video0
-	Stream settings:
-	Frame format: MJPG
-	Frame size: 640x480
-	Frame rate: 30 fps
-	</pre>

	<pre>		<pre>
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	</pre>		</pre>

-	An example window that opens is	+	An example of a window that it opens is:
		+
		+	[[Image:Guvcview01small.jpg]]

	=== Trouble Shooting USB ===		=== Trouble Shooting USB ===
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	=== Trouble Shooting Webcams ===		=== Trouble Shooting Webcams ===
		+
		+	==== Is /dev/video0 Created ====

	After plugging in the webcam, make sure its driver has been activated. Make sure the /dev/video0 is there:		After plugging in the webcam, make sure its driver has been activated. Make sure the /dev/video0 is there:
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	</pre>		</pre>

-	~~Also~~	+	==== Is the uvcvideo Driver Loaded ====

	<pre>		<pre>

Special:Log/upload

2012-05-14T06:11:19Z

uploaded "Image:Guvcview01small.jpg": Screenshot of guvcview test.

Special:Log/upload

2012-05-14T06:07:25Z

uploaded a new version of "Image:Guvcview01.jpg": Screenshot of guvcview test

Special:Log/upload

2012-05-14T06:05:57Z

uploaded "Image:Guvcview01.jpg": Test screenshot for guvcview.

USB and Webcam Tests

2012-05-14T06:04:42Z

Webcam Test Programs -

←Older revision		Revision as of 06:04, 14 May 2012
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	=== Webcam Test Programs ===		=== Webcam Test Programs ===

-	luvcview and guvcview are display programs that can be used to test a webcam. uvccapture will save an image to the current directory. Each were installed with Synaptic. For example to run ~~luvcview~~:	+	luvcview and guvcview are display programs that can be used to test a webcam. uvccapture will save an image to the current directory. Each were installed with Synaptic. For example to run guvcview:

	<pre>		<pre>
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	Frame rate: 30 fps		Frame rate: 30 fps
	</pre>		</pre>
		+
		+	<pre>
		+	eepp@tabor:~/Pictures$ guvcview
		+	guvcview 1.1.3
		+	bt_audio_service_open: connect() failed: Connection refused (111)
		+	bt_audio_service_open: connect() failed: Connection refused (111)
		+	bt_audio_service_open: connect() failed: Connection refused (111)
		+	bt_audio_service_open: connect() failed: Connection refused (111)
		+	video device: /dev/video0
		+	/dev/video0 - device 1
		+	Init. UVC Camera (046d:0805) (location: usb-0000:00:1d.7-1)
		+	{ pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
		+	{ discrete: width = 640, height = 480 }
		+	Time interval between frame: 1/30, 1/25, 1/20, 1/15, 1/10, 1/5,
		+	...
		+	</pre>
		+
		+	An example window that opens is

	=== Trouble Shooting USB ===		=== Trouble Shooting USB ===

Special:Log/upload

2012-05-14T05:51:02Z

uploaded "Image:LUVCview01.jpg": luvcview demo image

OpenCV Installation

2012-05-14T05:42:27Z

usb_cam -

←Older revision		Revision as of 05:42, 14 May 2012
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	[http://www.ros.org/news/2010/08/i-heart-robotics-vision-for-robotics-tutorials.html I Heart Robotics] installation instructions and tutorials.		[http://www.ros.org/news/2010/08/i-heart-robotics-vision-for-robotics-tutorials.html I Heart Robotics] installation instructions and tutorials.

-	=== usb_cam ===	+	=== usb_cam Driver ===
		+
		+	==== Installation ====

	Install the usb_cam drivers for ROS.		Install the usb_cam drivers for ROS.
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	rosmake usb_cam		rosmake usb_cam
	</pre>		</pre>
		+
		+	==== Webcam View Test ====

	In user space create usb_cam.launch with the following content.		In user space create usb_cam.launch with the following content.
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	=== ihr_opencv ===		=== ihr_opencv ===
		+
		+	==== Installation ====

	Install the OpenCV vision library using packages from I Heart Robotics.		Install the OpenCV vision library using packages from I Heart Robotics.
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	</pre>		</pre>

		+	==== Canned Image Test ====
	From users space.		From users space.

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	[[Image:two_oranges.jpg]]		[[Image:two_oranges.jpg]]
		+
		+	==== Live OpenCV Test ====
		+	To test OpenCV live enter the following. It will detect oranges in the display field of the webcam.
		+
		+	<pre>
		+	eepp@tabor:~/ros_workspace$ roslaunch /opt/ros/electric/stacks/iheart-ros-pkg/ihr_demos/
		+	ihr_opencv/launch/live_hough.launch
		+	</pre>
		+
		+	What follows is an example image.

	[[Image:Detected_orange07.jpg]]		[[Image:Detected_orange07.jpg]]
		+
		+	The terminal will also display status information along with the coordinates and radius of the detected
		+	orange.
		+
		+	<pre>
		+	15 frames/sec at 1336967181.169897841
		+	[ INFO] [1336967181.398723572]: x: 73 y: 201 r: 24
		+	[ INFO] [1336967181.498611975]: x: 72 y: 200 r: 23
		+	[ INFO] [1336967181.672332369]: x: 70 y: 196 r: 20
		+	[ INFO] [1336967181.892526277]: x: 68 y: 200 r: 24
		+	[ INFO] [1336967182.093009586]: x: 71 y: 195 r: 22
		+	14 frames/sec at 1336967182.115750742
		+	[ INFO] [1336967182.372296473]: x: 73 y: 195 r: 22
		+	[ INFO] [1336967182.600016483]: x: 75 y: 195 r: 22
		+	16 frames/sec at 1336967183.182737183
		+	15 frames/sec at 1336967184.179627852
		+	</pre>

Special:Log/upload

2012-05-14T05:29:12Z

uploaded "Image:Two oranges.jpg": Canned I Heart Robotics image of two oranges

OpenCV Installation

2012-05-14T03:55:19Z

ihr_opencv -

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	ihr_demo_bags/launch/demo.launch		ihr_demo_bags/launch/demo.launch
	</pre>		</pre>
		+
		+	It will display the following canned image.
		+
		+	[[Image:two_oranges.jpg]]
		+
		+	[[Image:Detected_orange07.jpg]]

Special:Log/upload

2012-05-14T03:49:29Z

uploaded "Image:Detected orange07.jpg": I Heart Robotics live Hough snapshot

OpenCV Installation

2012-05-13T20:02:33Z

ihr_opencv -

←Older revision		Revision as of 20:02, 13 May 2012
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	cd usb_cam		cd usb_cam
	</pre>		</pre>
-	Remove the <rosdep name="libswscale-dev"/> line from manifest.xml. A check of Synaptic shows it is there ~~and~~ the following step will fail if this line is present.	+	Remove the <rosdep name="libswscale-dev"/> line from manifest.xml. A check of Synaptic shows libswscale-dev is there. However, the following step will fail if this line is present.
	<pre>		<pre>
	rosdep install usb_cam		rosdep install usb_cam
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	roslaunch usb_cam.launch		roslaunch usb_cam.launch
	</pre>		</pre>
		+
		+	[[Image:Usb_cam02.jpg]]

	=== ihr_opencv ===		=== ihr_opencv ===
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	rosmake ihr_opencv		rosmake ihr_opencv
	</pre>		</pre>
		+
		+	Reindex the two oranges files. Otherwise, you'll get an error message that the two_oranges.bag file is unindexed.
		+
		+	<pre>
		+	root@tabor:bags# cd /opt/ros/electric/stacks/iheart-ros-pkg/ihr_demos/ihr_demo_bags/bags
		+	root@tabor:bags# rosbag reindex two_oranges.bag
		+	two_oranges.bag 100% 19.8 MB 00:00
		+	two_oranges.bag 100% 19.8 MB 00:00
		+	</pre>

	From users space.		From users space.
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	<pre>		<pre>

-	eepp@tabor:~/ros_workspace/webcam$ roslaunch /opt/ros/electric/stacks/iheart-ros-pkg/ihr_demos/ihr_demo_bags/launch/demo.launch	+	eepp@tabor:~/ros_workspace/webcam$ roslaunch /opt/ros/electric/stacks/iheart-ros-pkg/ihr_demos/
		+	ihr_demo_bags/launch/demo.launch
	</pre>		</pre>

Special:Log/upload

2012-05-13T19:33:43Z

uploaded "Image:Usb cam02.jpg": Example run of the I Heart Robotics packages

FitPC2 ubuntu

2012-05-13T15:48:05Z

Added -

←Older revision		Revision as of 15:48, 13 May 2012
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	* uvccapture		* uvccapture
	* libusb-dev		* libusb-dev
		+	* git-core
		+	* gimp

	== Management ==		== Management ==

OpenCV Installation

2012-05-13T15:37:23Z

I Heart Robotics -

←Older revision		Revision as of 15:37, 13 May 2012
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	[http://www.ros.org/news/2010/08/i-heart-robotics-vision-for-robotics-tutorials.html I Heart Robotics] installation instructions and tutorials.		[http://www.ros.org/news/2010/08/i-heart-robotics-vision-for-robotics-tutorials.html I Heart Robotics] installation instructions and tutorials.

-	~~As root~~	+	=== usb_cam ===

-	~~remove~~ the ~~following box~~	+	Install the usb_cam drivers for ROS.
-	~~<pre>~~	+
-	~~cd /opt/ros/electric/stacks~~	+
-	~~svn co https://bosch-ros-pkg.svn.sourceforge.net/svnroot/bosch-ros-pkg~~	+
-	~~source ../setup.sh~~	+
-	~~cd bosch-ros-pkg/trunk/stacks/bosch_drivers/~~usb_cam/	+
-	~~rosmake usb_cam~~	+
-	~~</pre>~~	+
-	~~add to the ROS_PACKAGE_PATH to make this work~~.	+

-	~~Testing to see if this works. Modified steps~~	+	As root

	<pre>		<pre>
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	cd usb_cam		cd usb_cam
	</pre>		</pre>
-	Remove the <rosdep name="libswscale-dev"/> line from manifest.xml. A check of Synaptic shows it is there and the ~~follow~~ step will fail if this line is present.	+	Remove the <rosdep name="libswscale-dev"/> line from manifest.xml. A check of Synaptic shows it is there and the following step will fail if this line is present.
	<pre>		<pre>
	rosdep install usb_cam		rosdep install usb_cam
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	</pre>		</pre>

-	In user space create usb_cam.launch.	+	In user space create usb_cam.launch with the following content.
	<pre>		<pre>
	<launch>		<launch>
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	<pre>		<pre>
	roslaunch usb_cam.launch		roslaunch usb_cam.launch
		+	</pre>
		+
		+	=== ihr_opencv ===
		+
		+	Install the OpenCV vision library using packages from I Heart Robotics.
		+
		+	Install git-core with Synaptic.
		+
		+	Then install opencv as root.
		+
		+	<pre>
		+	cd /opt/ros/electric/stacks/
		+	git clone git://github.com/IHeartRobotics/iheart-ros-pkg.git
		+	source ../setup.sh
		+	cd iheart-ros-pkg/ihr_demos/ihr_opencv/
		+	rosdep install ihr_opencv
		+	rosmake ihr_opencv
		+	</pre>
		+
		+	From users space.
		+
		+	<pre>
		+
		+	eepp@tabor:~/ros_workspace/webcam$ roslaunch /opt/ros/electric/stacks/iheart-ros-pkg/ihr_demos/ihr_demo_bags/launch/demo.launch
	</pre>		</pre>

Phidgets Motor Controller Test

2012-05-13T05:56:46Z

rostopic Command -

←Older revision		Revision as of 05:56, 13 May 2012
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	[http://www.google.com/url?sa=t&rct=j&q=ros%20cheat%20sheet&source=web&cd=1&ved=0CFQQFjAA&url=http%3A%2F%2Fwww.ros.org%2Fwiki%2FDocumentation%3Faction%3DAttachFile%26do%3Dget%26target%3DROScheatsheet.pdf&ei=cu6tT8zDG6egiAK_p5iuBA&usg=AFQjCNH4Oz-TRg6_xDil9PHq0gat80SmXA&cad=rja ROS Command Cheat Sheet]		[http://www.google.com/url?sa=t&rct=j&q=ros%20cheat%20sheet&source=web&cd=1&ved=0CFQQFjAA&url=http%3A%2F%2Fwww.ros.org%2Fwiki%2FDocumentation%3Faction%3DAttachFile%26do%3Dget%26target%3DROScheatsheet.pdf&ei=cu6tT8zDG6egiAK_p5iuBA&usg=AFQjCNH4Oz-TRg6_xDil9PHq0gat80SmXA&cad=rja ROS Command Cheat Sheet]

-	[http://www~~.google.com/url?sa=t&rct=j&q=ros%20cheat%20sheet&source=web&cd=1&ved=0CFQQFjAA&url=http%3A%2F%2Fwww~~.ros.org~~%2Fwiki%2FDocumentation%3Faction%3DAttachFile%26do%3Dget%26target%3DROScheatsheet.pdf&ei=cu6tT8zDG6egiAK_p5iuBA&usg=AFQjCNH4Oz-TRg6_xDil9PHq0gat80SmXA&cad=rja~~ rostopic documentation page]	+	[http://www.ros.org/wiki/rostopic rostopic documentation page]

	* rostopic - A tool for displaying debug information about ROS topics: publishers, subscribers etc		* rostopic - A tool for displaying debug information about ROS topics: publishers, subscribers etc