MPEG-2 到 H.264/AVC 之混合域轉碼器實做
An Implementation of Hybrid-Domain MPEG-2 to H.264/AVC Transcoder
Date Issued
2006
Date
2006
Author(s)
Hsieh, Chun-Wei
DOI
en-US
Abstract
Currently, video sources are always recorded and transmitted in various digital formats, and due to the
rapid progress of video coding technology, different video coding standards have been proposed. With
the increase of networks, types of devices, and video formats, interoperability among different systems
becomes more diffcult and important. Therefore, the service about converting video contents suiting
the requirement of one system to another is necessary, and Video Transcoding is the key technology to
make this possible.
MPEG-2 is the most popular video format, many multimedia contents are preserved in this format.
However, more and more digital devices are equipped with H.264/AVC, and the outstanding compression
performance helps to utilize the storage devices, in order to preserve more important multimedia and to
make better video quality with low bandwidth, an MPEG-2 to H.264 transcoder is a must.
In this thesis, a Hybrid-Domain MPEG-2 to H.264/AVC Transcoder is proposed and implemented.
For Intra-Transcoding, transform domain approachs are presented, and for Inter-Transcoding, spatial
domain techniques are discussed. Finally, the transcoder solved Intra-Transcoding with transform do-
main approach, and transcoding the inter-coded frames in spatial domain, and this transcoder is exaimed
and analyzed to help us understand the transcoding procedure about MPEG-2 to H.264/AVC.
Subjects
轉碼器
轉換域
MPEG-2
H.264
AVC
transcoder
hybrid-domain
mpeg-2
h.264/avc
Type
thesis
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