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A FRAME-BASED MPEG CHARACTERISTICS EXTRACTION TOOL AND ITS APPLICATION IN VIDEO TRANSCODING
Resource
IEEE Transactions on Consumer Electronics, Vol. 48, No. 3, AUGUST 2002
Journal
IEEE Transactions on Consumer Electronics
Journal Volume
Vol. 48
Journal Issue
No. 3
Pages
-
Date Issued
2002-08
Date
2002-08
Author(s)
DOI
246246/200611150121446
Abstract
In this paper, we present a frame-based characteristics
extraction tool, which can retrieve meaningful information
from MPEG-compressed bitstreams. Taking advantage of
the extracted information, we present a general architecture
for MPEG video transcoding, which can transcode a given
MPEG video bitstream into various MPEG video bitstreams
with different characteristics. We also implement an
MPEG-2-to-MPEG-4 video transcoder, which not only can
change the bitstreams’ syntax and bitrate but also can
encode each semantic video segment as a group of pictures
(GOPs), by using the techniques of flame type conversion
and video shot boundary detection. Moreover, the proposed
transcoder can intelligently select motion mode for each
macroblock of B-Vops in an MPEG-4 video to avoid some
unpredictable artifacts due to mis-selection of motion mode.
This representative application
extraction tool, which can retrieve meaningful information
from MPEG-compressed bitstreams. Taking advantage of
the extracted information, we present a general architecture
for MPEG video transcoding, which can transcode a given
MPEG video bitstream into various MPEG video bitstreams
with different characteristics. We also implement an
MPEG-2-to-MPEG-4 video transcoder, which not only can
change the bitstreams’ syntax and bitrate but also can
encode each semantic video segment as a group of pictures
(GOPs), by using the techniques of flame type conversion
and video shot boundary detection. Moreover, the proposed
transcoder can intelligently select motion mode for each
macroblock of B-Vops in an MPEG-4 video to avoid some
unpredictable artifacts due to mis-selection of motion mode.
This representative application
Subjects
HBT
InGaP
kink phenomenon
scattering parameter
Publisher
Taipei:National Taiwan University Dept Elect Engn
Type
journal article
File(s)
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Name
8106.pdf
Size
1.15 MB
Format
Adobe PDF
Checksum
(MD5):7c08dd1113a0f3f9a325bf8807daa1c9