Stereo Vision has created an impact on research in the area of computer vision system. It has many applications like 3D scene reconstruction, mobile robotics to detect obstacles, surgical robotics, etc. This paper focuses on various region based algorithms for stereo vision. They are used for generating disparity map. This disparity map is used to find out the distance of the objects in the images from camera. The researchers have implemented these algorithms and their results are compared on the basis of window size and time complexity. © 2014 IEEE.