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- W2053128992 abstract "자유시점 또는 오토스테레오스코픽 비디오 서비스는 3차원 영상을 제공하는 차세대 방송 시스템으로, 여러 시점의 영상들이 필요하다. 본 논문에서는 가상 시점 영상을 고속 생성하기 위해 알고리즘 병렬 구조를 최적화하고, Compute Unified Device Architecture(CUDA)를 이용한 General Propose Graphic Processing Unit(GPGPU) 기반의 중간시점 영상 고속 생성을 위한 최적화 기법을 제안한다. 제안한 방법은 좌/우 깊이영상을 병렬화시킨 스테레오 정합알고리즘을 이용하여 변위정보를 얻은 후, 깊이 당 변위증분을 계산하여 사용한다. 계산된 변위증분을 사용하여 해당 각 화소들의 깊이 값을 이용하여 좌/우 영상들을 원하는 위치의 중간시점으로 영상을 이동시킨다. 그 다음, 비폐색영역들을 서로 상호 보완하여 없앤 다음에 남은 홀들은 홀 필링으로 없애 최종 중간시점 영상을 생성한다. 제안한 방법을 구현하여 여러 실험 영상에 적용한 결과, 생성된 중간시점 깊이영상의 화질은 평균 PSNR 30.47dB이었으며, Full HD급 중간시점 영상을 초당 38 프레임 정도 생성하는 속도를 보였다. Free-view, auto-stereoscopic video service is a next generation broadcasting system which offers a three-dimensional video, images of the various point are needed. This paper proposes a method that parallelizes the algorithm for arbitrary intermediate view-point image fast generation and make it faster using General Propose Graphic Processing Unit(GPGPU) with help of the Compute Unified Device Architecture(CUDA). It uses a parallelized stereo-matching method between the leftmost and the rightmost depth images to obtain disparity information and It use data calculated disparity increment per depth value. The disparity increment is used to find the location in the intermediate view-point image for each depth in the given images. Then, It is eliminate to disocclusions complement each other and remaining holes are filled image using hole-filling method and to get the final intermediate view-point image. The proposed method was implemented and applied to several test sequences. The results revealed that the quality of the generated intermediate view-point image corresponds to 30.47dB of PSNR in average and it takes about 38 frames per second to generate a Full HD intermediate view-point image." @default.
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- W2053128992 date "2013-08-31" @default.
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- W2053128992 title "Fast Generation of Intermediate View Image Using GPGPU-Based Disparity Increment Method" @default.
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- W2053128992 doi "https://doi.org/10.6109/jkiice.2013.17.8.1908" @default.
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