[Elphel-support] Ordering stereo camera

[Elham Omrani]

Dear AndreyI'm PhD student and in my thesis is "Implementation of stereo vision system for obstacle detection in solar boat"this is my website:http://emorvarid.ut.ac.ir/Members.htm 
Elham    On Monday, August 1, 2016 11:27 AM, support-list <support-list at support.elphel.com> wrote:
 

 Dear Elham,

What kind of project is it ? Is it a personal, commercial, student/Ph.D research, something else? We did sponsor some interesting projects before and we plan to resume it with the new cameras starting this Fall.

Andrey

---- On Sun, 31 Jul 2016 23:29:40 -0700 Elham Omrani<elh.omrani at yahoo.com> wrote ---- 

Dear Andrey,Thank you for good guidance and suggestion. in your website, you have explained that this camera can be develop by c++ and opencv is one of c++ libraries.NC393-H camera is very expensive for me.
SinserlyElham 

    On Monday, August 1, 2016 10:32 AM, support-list <support-list at support.elphel.com> wrote:
 

 Dear Elham,

The most flexible solution will be something like this - http://blog.elphel.com/wp-content/uploads/2016/05/nc-393-printed-H-.jpeg , you will be able to change configuration if you'll need to.

You can run opencv in the camera (not possible in the older NC353), but it will not be probably fast enough. On the other hand we plan to add more configurable image correlation processing into the FPGA (here id the block diagram of the current FPGA code), so you will be able to start with the external computer processing and later (probably in a year) to do some correlation in the camera in real time.

Andrey



---- On Sun, 31 Jul 2016 22:37:44 -0700 Elham Omrani<elh.omrani at yahoo.com> wrote ---- 

Dear Andrey,Thanks for your good reply.My project is navigation and obstacle avoidance of a boat in outdoor. so I want to help me in choosing proper stereo camera.We want to use Opencv program.Yes, this program can use color or monochrome images.SinserlyElham 

    On Monday, August 1, 2016 9:50 AM, support-list <support-list at support.elphel.com> wrote:
 

 Dear Elpham,

There are many other issues that need to be considered when you select configuration of the stereo camera
What type of objects you need to measure, their angular size
What resolution do you need - angular and in distance
What software are you going to use - what kinds of lens distortions it can tolerate/compensate?
Does this software use color or monochrome images?
And many more

I would also recommend trying more than just 2 sensors - our experience indicates that it is much easier to avoid ambiguity before doing any feature extraction by just combining 3 or 4 images instead of 2.

Andrey



---- On Sun, 31 Jul 2016 22:03:09 -0700 Elham Omrani<elh.omrani at yahoo.com> wrote ---- 

Dear Andrey,
Thank you for your kindly answering and suggestion. I think NC353 camera with 5MPix resolution is enough for me(because of high speed of algorithm). in my project i need to see the depth of 50 meters(max).In your opinion is it possible? And the parameters of  focal length and angle of view in what range should be? Elham 




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