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조명변화에 적응적인 움직임 검색 기법과 2차원 다이렉트 모드를 사용한 다시점 비디오 부호화
이융기(Yung Ki Lee),허재호(Jae Ho Hur),이영렬(Yung Lyul Lee) 한국방송·미디어공학회 2005 방송공학회논문지 Vol.10 No.3
A MVC (Multi-view Video Coding) method, which uses both an illumination change-adaptive ME (Motion Estimation)/MC (Motion Compensation) and a 2D (Dimensional) direct mode, is proposed. Firstly, a new SAD (Sum of Absolute Difference) measure for ME/MC is proposed to compensate the Luma pixel value changes for spatio-temporal motion vector prediction. Illumination change-adaptive (ICA) ME/MC uses the new SAD to improve both MV (Motion Vector) accuracy and bit saving. Secondly, The proposed 2D direct mode that can be used in inter-view prediction is an extended version of the temporal direct mode in MPEG-4 AVC. The proposed MVC method obtains approximately 0.8㏈ PSNR (Peak Siganl-to-Noise Ratio) increment compared with the MPEG-4 AVC simulcast coding.