DCT-domain MPEG-2/H.264 Video Transcoder System Architecture for DMB Services
نویسندگان
چکیده
منابع مشابه
A DCT-Domain Video Transcoder for Spatial Resolution Downconversion
Video transcoding is an efficient way for rate adaptation and format conversion in various networked video applications. Several transcoder architectures have been proposed to achieve fast processing. Recently, thanks to its relatively low complexity, the DCT-domain transcoding schemes have become very attractive. In this paper, we investigate efficient architectures for video downscaling in th...
متن کاملDCT-based video frame-skipping transcoder
Due to high computational complexity and quality degradation introduced by conventional frame-skipping transcoders, a DCT-based video frame-skipping transcoder is proposed recently. However, the transcoding process of the motion compensated macroblocks in the DCT domain becomes the bottleneck since IDCT and DCT processes are required. In this paper, we propose a new architecture of the frame-sk...
متن کاملMode Conversion for H.264 to MPEG-2 Video Transcoder
This paper proposes an efficient method for transcoding compressed video from H.264/AVC to MPEG−2. This transcoder aims at maintaining backward compatibility between these two standards which is an important feature in modern communication systems such as WiMAX or xDSL, where customer demand for high−quality of diversified rich multimedia contents continues to impose great challenges to the vid...
متن کاملMpeg-4 Video Transcoder for Mobile Multimedia Traffic Planning
Traffic planning for multimedia has become more and more significant as new network infrastructures with different characteristics have been introduced lately. The increasing popularity of mobile communications has also drawn much of the attention from the research point of view. Thus, this paper addresses the problem of traffic planning, initiated by this interest, for mobile video communicati...
متن کاملA frequency-domain video transcoder for dynamic bit-rate reduction of MPEG-2 bit streams
Many of the forthcoming video services and multimedia applications are expected to use preencoded video for storage and transmission. Video transcoding is intended to provide transmission flexibility to preencoded bit streams by dynamically adjusting the bit rate of these bit streams according to new bandwidth constraints that were unknown at the time of encoding. In this paper, we propose a dr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The KIPS Transactions:PartB
سال: 2005
ISSN: 1598-284X
DOI: 10.3745/kipstb.2005.12b.6.637