Research of Fast 3D Imaging Based on Multiple Mode

8th International Conference on Advanced Infocomm Technology

Chen, Shibing^1,2 ; Yan, Huimin^1,2 ; Ni, Xuxiang^1,2 ; Zhang, Xiuda^1,2 ; Wang, Yu^1,2

State Key Laboratory of Modem Optical Instrument, Zhejiang University, China^1

National Engineering and Technology Research Center for Optical Instrument, Zhejiang University, Hangzhou

310027, China^2

关键词: Concurrent computing;    Image matching system;    Reliability and stability;    Spatial resolution;    Stereo matching algorithm;    Three dimensional (3-D) imaging;    Three dimensional imaging;    Time of flight (ToF) cameras;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/679/1/012047/pdf
DOI  :  10.1088/1742-6596/679/1/012047

来源: IOP

【 摘 要 】

Three-dimensional (3D) imaging has received increasingly extensive attention and has been widely used currently. Lots of efforts have been put on three-dimensional imaging method and system study, in order to meet fast and high accurate requirement. In this article, we realize a fast and high quality stereo matching algorithm on field programmable gate array (FPGA) using the combination of time-of-flight (TOF) camera and binocular camera. Images captured from the two cameras own a same spatial resolution, letting us use the depth maps taken by the TOF camera to figure initial disparity. Under the constraint of the depth map as the stereo pairs when comes to stereo matching, expected disparity of each pixel is limited within a narrow search range. In the meanwhile, using field programmable gate array (FPGA, altera cyclone IV series) concurrent computing we can configure multi core image matching system, thus doing stereo matching on embedded system. The simulation results demonstrate that it can speed up the process of stereo matching and increase matching reliability and stability, realize embedded calculation, expand application range.