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http://dx.doi.org/10.3745/KIPSTB.2010.17B.1.031

An Effective P-Frame Transcoding from H.264 to MPEG-2  

Kim, Gi-Hong (전남대학교 전산학과)
Son, Nam-Rye (목포대학교 중점연구소)
Lee, Guee-Sang (전남대학교 전자컴퓨터공학부)
Publication Information
The KIPS Transactions:PartB / v.17B, no.1, 2010 , pp. 31-36 More about this Journal
Abstract
After the launch of MPEG-2, it is widely used in multimedia applications like a Digital-TV or a DVD. Then, After the launch of H.264 at 2004, it has been expected to replace MPEG-2 and services IPTV and DMB. As we have been used to MPEG-2 devices by this time, we can not access H.264 Broadcast with MPEG-2 device. So We propose a new approach to transcode H.264 video into MPEG-2 form which can facilitate to display H.264 video with MPEG-2 device. To reduce the quality loss by transcoding, we use CPDT(Cascaded Pixel Domain Transcoder) structure. And to minimize processing time, SKIP block, INTRA block and motion vectors obtain from decoding process is employed for transcoding. we use BMA(Boundary Matching Algorithm) to select only one from candidate motion vectors. Experimental results show a considerable improved PSNR with reduction in processing time compared with existing methods.
Keywords
H.264; MPEG-2; Motion Vector; Transcoder; P-frame;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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