Transcoding with quality enhancement and irregular sampling

The need to move data among devices with different capabilities creates a need for transcoding. In this paper, an efficient transcoding algorithm from VC-1 to H.264 video with down/up sampling is discussed. Transcoding with resolution conversion usually results in lower video output quality. To address this problem an algorithm for quality enhancement with the use of irregular sampling is presented to use with transcoding. The quality enhancement module can also be used independently from the transcoding step. Experimental results show that the proposed algorithm can successfully remove artifacts and generate higher video quality. The main contribution of this paper is the use of irregular sampling techniques for video quality enhancement.

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