Depth and Zoom Estimation for PTZ Camera Using Stereo Vision

Abstract

Depth perception comes naturally to humans. However in a Computer Vision scenario estimation of distance between object and camera is an area still under research. This thesis aims to use binocular stereo vision to reconstruct a 3D scene from 2D images of the scene taken by a pair of cameras and use it to estimate the distance of the object from the camera. Further, this estimated distance is used to calculate the Zoom of a PTZ camera. Although there are various ways to determine the distance of an object from the camera using Sensors, Lasers and other such external devices, the method used in this thesis is independent of the use of such external devices and uses only image processing techniques to determine the distance. Results obtained and the process are clearly outlined.