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The design and implementation of postprocessing for depth map on real-time extraction system.

Tang Z, Li B, Li H, Xu Z - ScientificWorldJournal (2014)

Bottom Line: Depth estimation becomes the key technology to resolve the communications of the stereo vision.Eventually, some wrong stereo matching will inevitably exist in the process of depth estimation by hardware, such as FPGA.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.

View Article: PubMed Central - PubMed

Affiliation: Shanghai University, Shanghai 200072, China ; The Third Research Institute of Ministry of Public Security, Shanghai 201204, China.

ABSTRACT
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.

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Related in: MedlinePlus

Depth map real-time extraction system structure diagram.
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Related In: Results  -  Collection


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fig4: Depth map real-time extraction system structure diagram.

Mentions: As shown in Figure 4, it is the structure schematic diagram of the real-time depth map extracting system based FPGA, which is mainly used to obtain the depth map of the dual view or multiview video in the 3DTV system. (a) is the binocular SDI high-definition cameras; (b) is the FPGA development platform that is used to implement the algorithm; (c) is the encoder of the 3DTV system, which is designed to encode the real-time depth information; (e) is the FPGA chip for the SDI protocol parsing, stereo matching, detection of the matching unique, left-right consistency detection, filling the hole in the depth map, and so on.


The design and implementation of postprocessing for depth map on real-time extraction system.

Tang Z, Li B, Li H, Xu Z - ScientificWorldJournal (2014)

Depth map real-time extraction system structure diagram.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4066861&req=5

fig4: Depth map real-time extraction system structure diagram.
Mentions: As shown in Figure 4, it is the structure schematic diagram of the real-time depth map extracting system based FPGA, which is mainly used to obtain the depth map of the dual view or multiview video in the 3DTV system. (a) is the binocular SDI high-definition cameras; (b) is the FPGA development platform that is used to implement the algorithm; (c) is the encoder of the 3DTV system, which is designed to encode the real-time depth information; (e) is the FPGA chip for the SDI protocol parsing, stereo matching, detection of the matching unique, left-right consistency detection, filling the hole in the depth map, and so on.

Bottom Line: Depth estimation becomes the key technology to resolve the communications of the stereo vision.Eventually, some wrong stereo matching will inevitably exist in the process of depth estimation by hardware, such as FPGA.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.

View Article: PubMed Central - PubMed

Affiliation: Shanghai University, Shanghai 200072, China ; The Third Research Institute of Ministry of Public Security, Shanghai 201204, China.

ABSTRACT
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.

Show MeSH
Related in: MedlinePlus