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  1. Z. Tang, B. Li, H. Li, and Z. Xu, “The design and implementation of postprocessing for depth map on real-time extraction System,” The Scientific World Journal, vol. 2014, Article ID 363287, 10 pages, 2014.
The Scientific World Journal
Volume 2014, Article ID 363287, 10 pages
Research Article

The Design and Implementation of Postprocessing for Depth Map on Real-Time Extraction System

1Shanghai University, Shanghai 200072, China
2The Third Research Institute of Ministry of Public Security, Shanghai 201204, China
3Tsinghua University, Beijing 100084, China

Received 1 April 2014; Accepted 17 April 2014; Published 4 June 2014

Academic Editor: Xiangfeng Luo

Copyright © 2014 Zhiwei Tang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Depth estimation becomes the key technology to resolve the communications of the stereo vision. We can get the real-time depth map based on hardware, which cannot implement complicated algorithm as software, because there are some restrictions in the hardware structure. Eventually, some wrong stereo matching will inevitably exist in the process of depth estimation by hardware, such as FPGA. In order to solve the problem a postprocessing function is designed in this paper. After matching cost unique test, the both left-right and right-left consistency check solutions are implemented, respectively; then, the cavities in depth maps can be filled by right depth values on the basis of right-left consistency check solution. The results in the experiments have shown that the depth map extraction and postprocessing function can be implemented in real time in the same system; what is more, the quality of the depth maps is satisfactory.