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http://dx.doi.org/10.9708/jksci.2011.16.7.059

Video Quality Improvement Method of Up-sampling Video by Relationship of Intra Prediction Data and DCT Coefficient  

Lee, Yoon-Soo (Dept. of Computer Information, Shin Ansan University)
Publication Information
Journal of the Korea Society of Computer and Information / v.16, no.7, 2011 , pp. 59-65 More about this Journal
Abstract
Korea DMB Service is popularized, and is used by many users. But latest display devices compared to the DMB content resolution support higher resolution and a variety of video resampling technologies has been used. Generally, subjective video quality is determined by object recognition rate in video, and increased as the edge space between objects are more clear. An edge is the boundary between an object and the background, and indicates the boundary between overlapping objects. the predicted direction in intra prediction used in H.264/AVC has the similarity up to 80% for the edge information. In the study, we propose an effective up-sampling mothed using the edge information that is extracted for the relationship between the intra prediction data and the DCT coefficient data of H.264 video encoding.
Keywords
H.264/AVC video codec; Interpolation; Intra Prediction mode; Coefficient;
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