Stove Assistant - Bernhard - Pi Chef #6 - Camera mount and more tests

RE: Stove Assistant - Bernhard - Pi Chef #6 - Camera mount and more tests

genebren — Thu, 22 Mar 2018 14:15:00 GMT

Great work on your project. It seems like you are getting closer to getting the temperature readings corrected (positioning and distance).

Good luck moving forward,

Gene

RE: Stove Assistant - Bernhard - Pi Chef #6 - Camera mount and more tests

aspork42 — Thu, 22 Mar 2018 05:33:51 GMT

Here is my latest dual camera mount -

[View:/resized-image/__size/620x465/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-ea95bb18-5709-4d02-8f01-10628df1d3dd/1832.contentimage_5F00_186839.jpg:620:465]

[View:/resized-image/__size/620x827/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-ea95bb18-5709-4d02-8f01-10628df1d3dd/0336.contentimage_5F00_186840.jpg:620:827]

I still don’t Have any awesome footage of thermal overlay though [View:/resized-image/__size/16x16/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-ea95bb18-5709-4d02-8f01-10628df1d3dd/4578.contentimage_5F00_2.png:16:16]

RE: Stove Assistant - Bernhard - Pi Chef #6 - Camera mount and more tests

aspork42 — Wed, 21 Mar 2018 23:28:48 GMT

Great work!

i would guess the issue has to do most with the viewing area under each pixel. in digital cameras, each pixel has effectively a cone of viewable area. All the data within that field of view gets averaged by the sensor/thermopile and the final result is what the actual pixel value ends up as. So if half the FOV shows 50c and half the FOV is 100c then the pixel will report a temperature of 75C.

your raw data is 64 temperature measurements. You may be farther ahead to read the sensors directly over I2C instead of doing anything with OpenCV - unless you overlay text showing the measured temperature.

i have a fair amount left to do, but you have taken yours very far! I loved the video overlays!