ElphelWiki - User contributions [en]

Q and A

2009-03-29T21:20:43Z

Pbro: DHCP server on camera?

== About Q&A page ==
Hello, I have a question about the best way to set up the camera as a server, to assign IP's to clients that access the camera. Our application is in a medical lab, where the camera is looking at Petri dishes. The clients will access the camera, to execute a vision based system which determines antibiotic sensitivities for bacteria.

I could run the camera through a wireless router, and have the router assign IP's to the clients. Would it be simple to install a dhcp daemon on the camera to serve incoming requests?

Thank you,

Per Bj. Bro

UserProjects

2009-01-20T11:11:04Z

Pbro: /* Antibiotic sensitivity diagrams */

UserProjects

2009-01-20T11:10:37Z

Pbro: /* Antibiotic sensitivity diagrams */

Antibiotic sensitivity diagrams

2009-01-20T11:09:32Z

Pbro:

The camera is programmed as an Ajax server, using PHP and Javascript, for antibiotic sensitivity testing. The dishes are incubated with a bacterial culture and sample antibiotics impregnating small disks. After 18 hours of incubation, the antibiotic creates a halo around each disk, which indicates how effective the particular antibiotic is against the specific culture.

The application in the camera is web based, using the canvas Javascript element to display the image. The image processing application determines the diameter of the halo, and therefrom determines the minimum inhibitory concentration and therapeutic index, which is information that the physician uses to prescribe an antibiotic for the patient.

UserProjects

2009-01-20T11:08:29Z

Pbro: /* Antibiotic sensitivity diagrams */

== Research Projects ==
There are several research and educational projects that use Elphel cameras. Some are already active, others just starting or only in planning stage. We believe that scientific research is the application area where the open nature of our products is the most beneficial. The shortage of the powerful and at the same time open and flexible hardware was that "itch" that led me to start Elphel.

This page is started to provide resources to those who already uses or plans to use Elphel cameras. This is wiki, so please feel free to add you project description/link below.--[[User:Andrey.filippov|Andrey.filippov]] 14:59, 29 April 2007 (CDT)

=== [[SCINI: Submersible Capable of under Ice Navigation and Imaging]] ===

=== [[Rose-Hulman Robotics Team]] ===

=== [[Public Primary School Rosa Boekdrukker ]] ===

=== [[AHAB2: High altitude balloon payload]] ===

=== [[Desert Star Systems]] ===

=== [[OSMCAM]] - http://OpenStreetMap.org camera integration ===

=== [[Spectral images of the Chilean strawberry]] ===

=== [[Antibiotic sensitivity diagrams]] ===

The camera is programmed as an Ajax server, using PHP and Javascript, for antibiotic sensitivity testing. The dishes are incubated with a bacterial culture and sample antibiotics impregnating small disks. After 18 hours of incubation, the antibiotic creates a halo around each disk, which indicates how effective the particular antibiotic is against the specific culture.

The application in the camera is web based, using the canvas Javascript element to display the image. The image processing application determines the diameter of the halo, and therefrom determines the minimum inhibitory concentration and therapeutic index, which is information that the physician uses to prescribe an antibiotic for the patient.

== [[Qualified projects]] ==
This page list the projects that were qualified to get a free of charge hardware from Elphel. <br/>
===[[Frednet | Frednet ]]===
An OPEN SPACE project competeting on the Google Lunar X-Prize

UserProjects

2009-01-20T11:02:46Z

Pbro: Use of the model 353 to capture images of Petri dishes with bacterial cultures, for testing antibiotic effects

Wishlist

2008-11-09T19:20:01Z

Pbro: /* Networking */

As user I noticed some things I wanted to have on my camera, I hope anyone that has ideas can add them here.
What features are you waiting for?
What software components are still missing that you cannot live without?

==Software==
If a project has been completed just add the developer that did it, or is busy on it.
=== Sensor ===
* [[Dead/Hot pixel correction]]
* Fixed pattern noise (FPN) correction
* Flash mode for rolling shutter
* Lens distortion hardware correction
* Make image thumbnails (binning 8x8 from DCT[0,0] data)

=== Compass ===
* '''DONE''' [[Implement calibration]]

=== Networking ===
* [[DHCP (timeouted) and DNS-SD]]
* [[GigaBit ethernet]]

=== Fastest Boot ===
* [[Fast Boot]]

=== C API ===
* [[C API]]

=== UDMA support ===
* Enable [[UDMA]] in the Axis kernel. Needed to support most fast CF cards, will also boost speed on SATA.

=== Debayer Algorithmn ===
* Higher image quality debayer algorithmn FPGA implementation -> [http://scien.stanford.edu/class/psych221/projects/99/tingchen/algodep/vargra.html VNG]

==Hardware==
What will the next elphel camera most likely entitled '''Elphel 373''' be like?

===Power Supply===
optional 12V supply over additional jack

===Sensor===
'''Position adjustment'''
*initial focus/pan/tilt sensor adjustment

'''Interface'''
*group VLDS pairs in flexible cable from sensor to board

'''Sony IMX021'''
*designed for DSLRs (possibly the sensor used in Nikon D300 / D90)
*12.4 MPix
*5.5 µm pixel
*0.18 µm technology
*28mm x 22.2 mm APS-C sized 1.8" image area (28.4 mm diagonal)
*12 bit column ADC
*10.4 fps in 12.4 MPix mode
*on-chip noise reduction
*parallel A/D for every pixel coloumn

===CPU===
*USB2.0 Support

===External data sensors support===
*'''DONE''' GPS
*'''DONE''' Compass
*Dry contact (simply switch event)
*'''DONE''' RFID
*Proximity
*Environment sensors: Temperature/Humidity/Pressure/Illuminance/Loudness/..
*Futaba servo captute interface (for robots)

===External control===
*USB2.0 Support
*Futaba servo control interface (for robots)
*Relay control
*CAN support
*DMX512 support [http://en.wikipedia.org/wiki/DMX-512 DMX512]

UserProjects

2008-09-04T03:06:25Z

Pbro: /* Research Projects */

Spectral images of the Chilean strawberry

2008-09-04T03:05:29Z

Pbro:

The Chilean strawberry is white or pink. It is highly aromatic, but too soft for commercial production. Our project is oriented towards improving the quality of the fruit to enable local farmers to grow this product.

We capture images of the fruit through a spectral grating (1000 lines/cm), which generates a rainbow spectrum. We can measure the amplitude of the light at different wavelengths, to quantify the color.

UserProjects

2008-09-04T03:04:38Z

Pbro: /* Spectral images of the Chilean strawberry */

== Research Projects ==
There are several research and educational projects that use Elphel cameras. Some are already active, others just starting or only in planning stage. We believe that scientific research is the application area where the open nature of our products is the most beneficial. The shortage of the powerful and at the same time open and flexible hardware was that "itch" that led me to start Elphel.

This page is started to provide resources to those who already uses or plans to use Elphel cameras. This is wiki, so please feel free to add you project description/link below.--[[User:Andrey.filippov|Andrey.filippov]] 14:59, 29 April 2007 (CDT)

=== [[SCINI: Submersible Capable of under Ice Navigation and Imaging]] ===

=== [[Rose-Hulman Robotics Team]] ===

=== [[Public Primary School Rosa Boekdrukker ]] ===

=== [[AHAB2: High altitude balloon payload]] ===

=== [[Desert Star Systems]] ===

=== [[OSMCAM]] - http://OpenStreetMap.org camera integration ===

=== [[Spectral images of the Chilean strawberry]] ===

The Chilean strawberry is white or pink. It is highly aromatic, but too soft for commercial production. Our project is oriented towards improving the quality of the fruit to enable local farmers to grow this product.

We capture images of the fruit through a spectral grating (1000 lines/cm), which generates a rainbow spectrum. We can measure the amplitude of the light at different wavelengths, to quantify the color.

== [[Qualified projects]] ==
This page list the projects that were qualified to get a free of charge hardware from Elphel.

UserProjects

2008-09-04T03:01:38Z

Pbro: /* Research Projects */

Chilean strawberry

2008-09-04T02:59:24Z

Pbro:

This project uses the Elphel 353 to capture spectral images of the strawberry. The Chilean strawberry is white or pink, is highly aromatic, but is too soft for commercial production. We capture the image through a spectral grating to determine the color spectrum across the fruit.