Post-processing algorithms for real-time active stereo vision

Author

Seung-min Choi ; Jae-chan Jeong ; Dae Hwan Hwang

Author_Institution

Dept. of IT convergence Technol. Res., Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

2014

fDate

22-25 June 2014

Firstpage

1

Lastpage

2

Abstract

This paper presents post-processing algorithms which work on a commercial FPGA for high quality stereo vision results. Specially, in this paper we focus the description of algorithms and their performance evaluation results instead of explaining hardware architecture. The proposed algorithms consists of five sub-blocks in cascade manner, which are consistency check, hole filling, variance check, weighted median filter, and joint bilateral filter. The experimental results show that error rates are 6.02% (6.57% with no using) for real world camera input(1280×720 intensity, maximum disparity 256), and 8.30% (13.7% with no using) for Middlebury stereo image set when we use the proposed post-processing.

Keywords

field programmable gate arrays; median filters; stereo image processing; visual perception; Middlebury stereo image set; commercial FPGA; consistency check; error rates; hardware architecture; high-quality stereo vision result; hole filling; joint bilateral filter; post-processing algorithm; real-time active stereo vision; real-world camera input; variance check; weighted median filter; Algorithm design and analysis; Field programmable gate arrays; Filling; Filtering algorithms; Hardware; Real-time systems; Stereo vision; FPGA; filter; post processing; real-time; stereo vision;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on

Conference_Location

JeJu Island

Type

conf

DOI

10.1109/ISCE.2014.6884347

Filename

6884347