Archive for the 'Web Cam' Category

Feb 26 2009

Processor Usage

Published by Michael Doyle under JMyron, Research, Visual, Web Cam

Took a couple of screen grabs of Processor usage on laptop and PC when running JMyron. CPU usage is high.
Laptop:
processor
Desktop:
processor_pc

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Feb 08 2009

New Webcam

Published by Michael Doyle under JMyron, Visual, Web Cam

New Webcam arrived in the post today.

Tryign to get it working is causing big problems. Reading over the processing forums, there's a few ways to try and get it working. So far, I've:

  1. Installed the JMF
  2. Installed WinVDIG
  3. Installed PortVideoSDL (gets native resolution of video devices)
  4. Looked into openCV
  5. Looked into the default video Library for processing

Still no success :(

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Jan 26 2009

PortVideoSDL

Published by Michael Doyle under JMyron, Processing, Web Cam

PortVideoSDL finds the native resolution of a video device. If the resolution isn't set to correctly for JMyron, the cam feed will not work correctly and won't be output right. Each pixel will either be stretched or expanded, resulting in a garbled mess. After running PortVideoSDL, the native resolution of my Lifecam VX-1000 is 352*288, not the 340 * 240 on the box. Funnily enough, it's giving me 28fps as the screenshot shows.
portvideo

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Jan 19 2009

JMyron

Published by Michael Doyle under JMyron, Processing, Visual, Web Cam

Using the laptop to check JMyron, it's kinda slowing me down, but it's the best I can do at the moment. From looking at the code, it seems to work by:

  • Reading the pixels in
  • Checking every pixel for color values
  • Check the previous pixels for any changes
  • Drawing points around them
  • Updates the camera image

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