Have you ever wondered how robots navigate autonomously, grasp different objects or avoid collisions while moving? Using stereo vision-based depth estimation is a common method used for such ...
Improving Illumination in Night Time Images
Introduction Taking good pictures in poor lighting conditions can seem like magic to non-photographers. It takes a combination of skill, experience and the right equipment to accomplish low ...
Making A Low-Cost Stereo Camera Using OpenCV
In this post, we will learn how to create a custom low-cost stereo camera (using a pair of webcams ) and capture 3D videos with it using OpenCV. We provide code in Python and C++. We all ...
Optical Flow in OpenCV (C++/Python)
In this post, we will learn about the various algorithms for calculating Optical Flow in a video or sequence of frames. We will discuss the relevant theory and implementation in OpenCV of sparse and ...
Introduction to Epipolar Geometry and Stereo Vision
Have you ever wondered why you can experience that wonderful 3D effect when you watch a movie with those special 3D glasses? Or why is it difficult to catch a cricket ball with your one eye closed? It ...
Understanding Lens Distortion
In a previous post, we went over the geometry of image formation and learned how a point in 3D gets projected on to the image plane of a camera. The model we used was based on the pinhole camera ...
