ElphelWiki - User contributions [en]

Elphel cameras and Zoneminder

2008-09-26T20:13:58Z

Cordel: /* Using ImgSrv to configure your monitor */

We plan to make model 353 camera work with [http://www.zoneminder.com Zoneminder]

Several ways may be considered:

* [[imgsrv]] have the possibility to send MJPEG stream over HTTP
* the RTP/RTSP streamer can be used with [[MPlayer]] and [[AVLD_-_Another_Video_Loopback_Device | AVLD]]
* or the best way: RTP/RTSP integration in ZoneMinder

= Configuring Elphel cameras and ZoneMinder =

== Using ccam.cgi to configure your monitor ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manually set in ZoneMinder to match the image being sent by the camera. Alternatively you can set the image dimensions in the path in ZM which would be preferred just in case for some reason someone changes the dimensions on the camera it self which would make ZM unable to process the images. These are my findings after having a go of it for a half hour:
Using [[Ccam.cgi]]. ccam.cgi will soon be depreciated in favor of [[imgsrv]].

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== Using ImgSrv to configure your monitor ==
To use [[imgsrv]] all you must do is set the port to 8081 and the path to either /bimg for for an image grab or to /mbimg to get a mjpeg push stream. There is to the best of my knowledge thus far, not any way to request image parameters (Image size, scaling, etc.) or fps through the path using [[imgsrv]] so these must be set directly on the Elphel camera and your settings in ZM must match. If the setting do not match, ZM will not acquire the image being sent.You should also set on the camera to enable "Video Streamer" so that the camera continues to update its buffer.

[[Image:Elphel-config-streamer.jpg]]

[[Image:Elphel-config-size.jpg]]

ZoneMinder Settings you do not want to set a limit on fps as this has to be regulated at the camera on the following mjpeg push configuration.
[[Image:Config-source2.jpg]]

Elphel cameras and Zoneminder

2008-09-26T20:11:08Z

Cordel:

We plan to make model 353 camera work with [http://www.zoneminder.com Zoneminder]

Several ways may be considered:

* [[imgsrv]] have the possibility to send MJPEG stream over HTTP
* the RTP/RTSP streamer can be used with [[MPlayer]] and [[AVLD_-_Another_Video_Loopback_Device | AVLD]]
* or the best way: RTP/RTSP integration in ZoneMinder

= Configuring Elphel cameras and ZoneMinder =

== Using ccam.cgi to configure your monitor ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manually set in ZoneMinder to match the image being sent by the camera. Alternatively you can set the image dimensions in the path in ZM which would be preferred just in case for some reason someone changes the dimensions on the camera it self which would make ZM unable to process the images. These are my findings after having a go of it for a half hour:
Using [[Ccam.cgi]]. ccam.cgi will soon be depreciated in favor of [[imgsrv]].

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== Using ImgSrv to configure your monitor ==
To use [[imgsrv]] all you must do is set the port to 8081 and the path to either /bimg for for an image grab or to /mbimg to get a mjpeg push stream. There are to the best of my knowledge thus far, any way to request image parameters (Image size, scaling, etc.) or fps through the path so these must be set directly on the Elphel camera and your settings in ZM must match. You should also set on the camera to enable "Video Streamer" so that the camera continues to update its buffer.

[[Image:Elphel-config-streamer.jpg]]

[[Image:Elphel-config-size.jpg]]

ZoneMinder Settings you do not want to set a limit on fps as this has to be regulated at the camera on the following mjpeg push configuration.
[[Image:Config-source2.jpg]]

File:Config-source2.jpg

2008-09-26T20:04:21Z

Cordel: Settings in ZoneMinder using imgsrv to to send an mjpeg push.

Settings in ZoneMinder using imgsrv to to send an mjpeg push.

File:Elphel-config-size.jpg

2008-09-26T20:02:39Z

Cordel: Setting Image definitions in Elphel camera.

Setting Image definitions in Elphel camera.

File:Elphel-config-streamer.jpg

2008-09-26T20:00:55Z

Cordel: Enable compressor in Elphel camera to continually update buffers.

Enable compressor in Elphel camera to continually update buffers.

Development documentation

2008-09-25T01:48:49Z

Cordel: /* Elphel cameras and Zoneminder */

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Currently working on making this happen. Using [[Ccam.cgi]] is currently working.
You can find more information at [[Elphel cameras and Zoneminder]].

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

Elphel cameras and Zoneminder

2008-09-25T01:45:34Z

Cordel:

Development documentation

2008-09-22T02:04:24Z

Cordel: /* Elphel cameras and Zoneminder */

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:
Using [http://wiki.elphel.com/index.php?title=Ccam.cgi ccam.cgi].

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

Development documentation

2008-09-22T02:01:08Z

Cordel: /* Elphel cameras and Zoneminder */

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

Development documentation

2008-09-22T01:57:26Z

Cordel: /* Elphel cameras and Zoneminder */

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor.jpg]]

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

File:Monitor.jpg

2008-09-22T01:55:02Z

Cordel: Stream from ZoneMinder zms using Elphel sandbox camera.

Stream from ZoneMinder zms using Elphel sandbox camera.

Development documentation

2008-09-22T01:50:56Z

Cordel: /* Elphel cameras and Zoneminder */

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

Development documentation

2008-09-22T01:49:56Z

Cordel: Add images

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )
[[Image:Config-general.jpg]]
[[Image:Config-source1.jpg]]
[[Image:Zm-Monitor1.jpg]]

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

----
''Free Software and Open Hardware. Elphel, Inc., 2005''

File:Zm-Monitor1.jpg

2008-09-22T01:45:50Z

Cordel: Stream from zms using the Sandbox Elphel Camera.

Stream from zms using the Sandbox Elphel Camera.

File:Config-source1.jpg

2008-09-22T01:43:29Z

Cordel: Source tab configuration window in ZoneMinder with an Elphel camera setup in snapshot mode.

Source tab configuration window in ZoneMinder with an Elphel camera setup in snapshot mode.

File:Config-general.jpg

2008-09-22T01:41:29Z

Cordel: General configuration window in ZoneMinder with an Elphel camera setup in snapshot mode.

General configuration window in ZoneMinder with an Elphel camera setup in snapshot mode.

Development documentation

2008-09-22T01:39:37Z

Cordel: Quick test with ZM to show that snapshots can be captured.

{{Manual Header}}

== Introduction ==

===2 Developers:===

We just started this Wiki so the info here is rather patchy covering just some particular topics. Please be sure more will be posted here by us - Elphel develpers and (I hope) by you too.

Happy hacking of Elphel products,

Andrey

== Photo-finish ==

'''Background:'''

The photo finish camera can be used for many sporting applications: greyhound, horse, bike, car/motorbike and athletics. This discussion will be focused on athletics competitions since this is the most demanding.
The photo finish camera system “yet to be named” should meet all the requirements of a Fully Automatic Timer (F.A.T.) as outlined in the IAAF, and other international athletic organizations. A handful of such systems are available and are out of the reach of many small struggling clubs and sporting bodies.

The photo finish camera is positioned at the finish line and takes continuous images of the line at a rate of 3072 frames per second and then displays them side by side on the screen. Since there are usually 8 lanes in the race the camera/software has to have some way of differentiating the lanes from the background. The simplest way is to paint the finish line with back squares where the lane line intersects the finish line for the software to detect the lanes and assign the athlete to the correct lane.

[[Image:finishline.jpg]]

The photo finish images are composed of many assembled pictures of the finish line. Since the finish line is white and the lines that define the different lanes are also white it would be hard to differentiate the two. So the black squares would be seen as a continuous black line behind the athletes and would define the individual lanes.

The black squares on the finish line are also used for the camera alignment. The smaller the black squares the better the camera alignment.

'''Components of the photo finish system''':

1. Camera – with high accuracy crystal IC- Timer (Elphel) and time stamping of images.
- Remote controlled Pan tilt system or accurate XYZ table for camera alignment (software and joystick control)
- Remote control zoom lens (software)
- Scope or laser for alignment
- Restart button/trigger (wireless???)
2. Start/stop/reset trigger (wireless and/or mechanical).

3. Software- dedicated meet management system (a database driven image capture/analysis system).

'''SOFTWARE'''

== Zeroconf for Elphel cameras ==

== Elphel cameras and Zoneminder ==
Using the ccam.cgi to grap a snapshot in ZoneMinder works fairly well. You will be able to easily implement this.
Keep in mind that ZoneMinder has no facilities to determine the image size so this must be manualy set in ZoneMinder to match the image being sent by the camera. These are my findings after having a go of it for a half hour:

Using " /admin-bin/ccam.cgi?opt=vhcxy " as your path in ZoneMinders Monitor configuration ( Keep in mind that I am using the sandbox camera so I'm not going to bother benchmarking )

== [http://wiki.elphel.com/index.php?title=HD_cinema_camera_Development_FAQ HD cinema camera] ==

== USB host interface ==

== Motorized lens control ==

- lens control board [[10331]]

[[Image:10331_dev.jpg|thumb|Lens control board.]]

- power and communication board [[10332]]

[[Image:10332_dev.jpg|thumb| Power and communication board.]]

[[Image:Camera_with_motolens.jpg|thumb|Work the camera with motorized lens.]]

== Outdoor enclosure ==

== Real Time Clock for the camera ==

There is a description of [[RTC]] implemented in the camera FPGA. This clock might be fine-tuned, the data is available for reading by the CPU and to be embedded in the camera images/video by the FPGA itself.

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''Free Software and Open Hardware. Elphel, Inc., 2005''