A New Technique for Geometry Based Visual Depth Estimation for Uncalibrated Camera
The most challenging issue in the field of visual control system is the accurate estimation of depth upon which all other parameters of pose estimation may depend. Here we have introduced a new approach for the depth estimation problem of a visual control system with a moving camera and stationary target. A unique visual pattern is designed to achieve the desired depth of the vision based system. In this paper the unknown depths of the special geometrical feature points are estimated from the pre-calculated depth calibrated equations, whose affects are then combined to acquire the desired goal. This specialized technique doesnt require any conventional camera calibration parameters (e.g., camera intrinsic parameters); rather it works on the specialized and accurate depth calculating calibration equations described in this paper. Simulation and experimental applications are presented which verify the performance of the proposed technique. The vision system (i.e., a wireless camera, pointing downwards) is mounted with a mechanical assembly which can move laterally as well as up and down. The required algorithm is designed in MAT LAB.
Geometry Vision system Lateral position Depth estimation Specialized depth calculating calibrated equations Introduction
Ibrar Ullah Jan Naeem Iqbal
Department of Electrical Engineering, Pakistan Institute of Engineering and Applied Sciences(PIEAS) Nilore, Islamabad, Pakistan
国际会议
2009图像分析与信号处理国际会议(2009 International Conference on Image Analysis and Signal Processing)
浙江台州
英文
286-291
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）