Go to Post do i even have to say anything about hurricane jeanne after my comments about charley, frances and ivan? :mad: but if i could, i would run all of them over with my robot... - Arefin Bari [more]
Home
Go Back   Chief Delphi > Technical > Technical Discussion
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 19-01-2016, 20:53
adciv adciv is offline
One Eyed Man
FRC #0836 (RoboBees)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2010
Location: Southern Maryland
Posts: 478
adciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to all
Re: Camera in Grayscale

It's compressing to JPG before transmission across the network. That said, this will still reduce bandwidth requirement (although how much would require testing).

Before going this route, I'd recommend looking at reducing the resoultion & framerate if possible. I'm curious as to what is currently being used and what is required.
__________________
Quote:
Originally Posted by texarkana View Post
I would not want the task of devising a system that 50,000 very smart people try to outwit.
  #2   Spotlight this post!  
Unread 20-01-2016, 00:46
Turing'sEgo Turing'sEgo is offline
Registered User
no team
 
Join Date: Jan 2016
Rookie Year: 2010
Location: Boulder
Posts: 47
Turing'sEgo can only hope to improve
Re: Camera in Grayscale

Quote:
Originally Posted by adciv View Post
Before going this route, I'd recommend looking at reducing the resoultion & framerate if possible. I'm curious as to what is currently being used and what is required.
Another option would be to convert to HSV and then select which channel you want to process. That way you are still retaining information from RGB at 1/3 the data.
  #3   Spotlight this post!  
Unread 20-01-2016, 07:41
adciv adciv is offline
One Eyed Man
FRC #0836 (RoboBees)
Team Role: Mentor
 
Join Date: Jan 2012
Rookie Year: 2010
Location: Southern Maryland
Posts: 478
adciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to alladciv is a name known to all
Re: Camera in Grayscale

I'd still be leery about that. The HD3000 can output images in JPG directly and use internal hardware compression. Any sort of post processing on the roboRIO would require compressing the image on the roboRIO and this will use up significant processor resources.
__________________
Quote:
Originally Posted by texarkana View Post
I would not want the task of devising a system that 50,000 very smart people try to outwit.
  #4   Spotlight this post!  
Unread 20-01-2016, 07:45
Greg McKaskle Greg McKaskle is offline
Registered User
FRC #2468 (Team NI & Appreciate)
 
Join Date: Apr 2008
Rookie Year: 2008
Location: Austin, TX
Posts: 4,748
Greg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond reputeGreg McKaskle has a reputation beyond repute
Re: Camera in Grayscale

To echo adciv. Potential options are great. But test them, as the real world isn't obliged to work the way you expected.

Greg McKaskle
  #5   Spotlight this post!  
Unread 20-01-2016, 08:49
James Juncker's Avatar
James Juncker James Juncker is offline
Broken Robot Fixer
FRC #2834 (Bionic Black Hawks)
Team Role: Driver
 
Join Date: Jan 2016
Rookie Year: 2012
Location: United States
Posts: 44
James Juncker will become famous soon enough
Re: Camera in Grayscale

If you are trying to use a camera for vision tracking I don't know that this will be able to still vision track across a gray scale as it may confuse similar objects for the reflected light. If this is for a drive camera for driver vision going around obstacles, I would highly recommend keeping the camera in color so that you know what exactly you are looking at. the best option to reduce bandwidth would be dropping the frames to about 15 FPS and lowering the resolution to about half of the area the camera will take up on your screen. this way you are still able to visually use and see with the camera as well as being able to tell whether that is a blue or red robot charging at you and whether or not they will stop. If it still becomes a bandwidth issue you can always reduce the FPS or resolution further to make the FTA's and Others happy.

Feel free to try grayscale though if you can figure it out, but I don't think it will be as effective as reducing frames and resolution.
__________________
The FRC season has 3 steps
Eat
Build
Play

It is important to note that sleep is not included in these steps.
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 13:34.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi