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Open Source Computer Vision is one of the most used open source, cross-platform, computer vision library available to perform real-time computer vision processes and is developing at an incredible rate. OpenCV library is a brainchild of Dr. Gary Bradski. It is released under BSD license and supports Linux, Windows, Mac OS, iOS and Android with interfaces avaiable in C++, C, Python and Java. Inspite of its popularity and usability, only recently a book on developing applications using Python interface became available. The OpenCV Computer Vision with Python book is published... Read More

So I’m currently working on HTC Evo V 4G and was desparately trying to obtain images from both the camera. One thing was sure that I couldn’t use OpenCV’s Java Camera or Native Camera (it doesn’t even work with ICS). I decided to use Android SDK Camera. I tried posting question on stackoverflow and OpenCV forum, but couldn’t find any proper solutions. I tried taking pieces of code from wherever I could and wrote something, but it wouldn’t work. I also found a perfectly working code but it was giving me Static Linkage Errors. It meant the OpenCV manager couldn’t... Read More

Whenever working with stereoscopy, it is a necessity to calibrate the cameras and get the required intrinsic and extrinsic parameters.

This is a so-called pinhole camera model. A scene view is formed by projecting 3D points into the image plane using a perspective transformation.

What is Camera Calibration?

In the manufacturing process of a camera, there might be some distortions invloved due to inaccurate positioning of the lens or inaccuracy in manufacturing parabolic lens. Read more about distortion on AI shack

Calibrating the camera gives us some specific values which can be used to... Read More