This post will cover how to use the Melexis MLX90640 thermal array sensor with the ESP32-Cam module. The work presented here is based off of the work of others and their documented efforts. The reason for using the ESP32-Cam module is because of its low cost, small form factor, and its built in microSD storage. The Melexis MLX90640 thermal array sensor can provide a 32 x 24 pixel thermal image in either a 55 or 110 degree field of view…
Near IR has been covered in earlier posts and I wanted to expand on the topic after seeing it represented in false color. I happened upon Mathieu Stern’s work a couple of weeks after my last post, which he posted just over three weeks earlier. The commercial grade work employed a yellow filter inserted in a modified high end camera that had its Near IR filter removed by Kolari Vision. This second video expanded on the topic. The filter manufacturer…
This post will cover the concepts of image processing to generate and display image disparity or depth of field. This topic has been covered in earlier posts in regards to anaglyph imaging and OpenCV disparity mapping. The purpose of this post is to expand on this topic by demonstrating some features and limitations. Let’s start by leaving flatland. Flatland & the 4th Dimension – Carl Sagan This image is of a stereo card from the Missouri History Museum that is…