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  1. Chapter and Conference Paper

    DCT Block Conversion for H.264/AVC Video Transcoding

    In H.264/AVC [1], integer transforms are applied instead of the 8×8 discrete cosine transform (DCT) of previous standards to avoid inverse transform mismatch problems. However, these transforms make it difficu...

    Joo-Kyong Lee, Ki-Dong Chung in Euro-Par 2005 Parallel Processing (2005)

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  2. Chapter and Conference Paper

    Conversion Scheme for DCT-Domain Transcoding of MPEG-2 to H.264/AVC

    The 4×4 approximate discrete cosine transform (DCT) of H.264/AVC [1] makes it difficult to transcode the pre-coded video contents with the previous video coding standards to H.264/AVC in DCT domain. This is du...

    Joo-kyong Lee, Ki-dong Chung in Image Analysis and Processing – ICIAP 2005 (2005)

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  3. Chapter and Conference Paper

    Half-Pixel Correction for MPEG-2/H.264 Transcoding

    To improve video quality and coding efficiency, H.264/AVC [1] has adopted several newer coding tools such as a 4×4 integer DCT and a method for calculating half pixels than the previous standards. However, the...

    Soon-young Kwon, Joo-kyong Lee, Ki-dong Chung in Image Analysis and Processing – ICIAP 2005 (2005)

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    Chapter and Conference Paper

    Video Coding Using Supplementary Block for Reliable Communication

    In this paper, we propose a video source coding scheme, called Supplementary Block based Encoding, to protect the propagation of the transmission errors over the network. Unlike the conventional source coding ...

    Joo-Kyong Lee, Tae-Uk Choi, Ki-Dong Chung in Advances in Multimedia Information Process… (2002)