Adaptive intra-frame assignment and bit-rate estimation for variable GOP length in H.264

Cited 30 time in webofscience Cited 0 time in scopus
  • Hit : 820
  • Download : 600
Video sequences usually, have many scene changes and contain rapid motion. The coding efficiency of such sequences is generally low, and the image quality fluctuates. If the rapid motion and scene changes are taken into consideration for video compression, the compression performance can be improved and the fluctuation of image quality can be reduced. An adaptive group of picture (GOP)-length structure is proposed here to consider the scene changes and rapid motion in video sequences. Our proposed algorithm for this adaptive GOP-length structure is composed of three steps. First, a correlation measure is proposed to estimate the scene changes. Second, a new intra-frame assignment method is proposed. Third, an intra-quantization parameter rule for avoiding buffer overflow and image quality fluctuation is also suggested. Our proposed algorithm has an initial delay of one-GOP length, which makes it difficult to apply for real-time communication, but this type of short initial delay is acceptable in a streaming service.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2006-10
Language
English
Article Type
Article
Keywords

VIDEO; MPEG

Citation

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, v.16, pp.1271 - 1279

ISSN
1051-8215
DOI
10.1109/TCSVT.2006.881856
URI
http://hdl.handle.net/10203/1154
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 30 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0