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Multi-view Synthesis Algorithm for the Better Efficiency of Codec

부복호화기 효율을 고려한 다시점 영상 합성 기법

Choi, In-kyu;Cheong, Won-sik;Lee, Gwangsoon;Yoo, Jisang
최인규;정원식;이광순;유지상

  • Received : 2015.10.20
  • Accepted : 2015.12.01
  • Published : 2016.02.29

Abstract

In this paper, when stereo image, satellite view and corresponding depth maps were used as the input data, we propose a new method that convert these data to data format suitable for compressing, and then by using these format, intermediate view is synthesized. In the transmitter depth maps are merged to a global depth map and satellite view are converted to residual image corresponding hole region as out of frame area and occlusion region. And these images subsampled to reduce a mount of data and stereo image of main view are encoded by HEVC codec and transmitted. In the receiver intermediate views between stereo image and between stereo image and bit-rate are synthesized using decoded global depth map, residual images and stereo image. Through experiments, we confirm good quality of intermediate views synthesized by proposed format subjectively and objectively in comparison to intermediate views synthesized by MVD format versus total bit-rate.

Keywords

Format conversion;global depth map;residual view;view synthesis

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Acknowledgement

Grant : Development of UHD Realistic Broadcasting, Digital Cinema, and Digital Signage Convergence Service Technology

Supported by : Institute for Information &communications Technology Promotion(IITP)