Error-resilient coding of H.264 based on periodic macroblock

For the compressed video, since an inter-frame depends on the previously encoded frame, the error in one inter-frame may propagate to the following inter-frames. In this paper, we present a new error-resilient coding scheme to alleviate the effect of error propagation for the new coding standard H.2...

Celý popis

Uložené v:
Podrobná bibliografia
Vydané v:IEEE transactions on broadcasting Ročník 52; číslo 2; s. 223 - 229
Hlavní autori: Zheng, J., Chau, L.-P.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.06.2006
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Applied sciences
Bandwidth
Bit rate
Coding
Coding standards
Coding, codes
Consumption
Distortion
Encoders
Encoding
Errors
Exact sciences and technology
Frames
Image processing
Information, signal and communications theory
Motion compensation
PSNR
Redundancy
Shape
Signal and communications theory
Signal processing
Simulation
Telecommunications and information theory
Vectors
Video compression
Video sequences
Video coding
Availability
Performance evaluation
Image processing
Coding errors
Data compression
Video signal
Loss rate
Image compression
Buffer system
Video signal processing
Image quality
Image coding
Simulation
Image sequence
Error detection
Error correction
Resource management
Growth of error
Transmission error
Signal to noise ratio
ISSN:0018-9316, 1557-9611
On-line prístup:Získať plný text
Tagy: Pridať tag
Žiadne tagy, Buďte prvý, kto otaguje tento záznam!
Popis
Shrnutí:For the compressed video, since an inter-frame depends on the previously encoded frame, the error in one inter-frame may propagate to the following inter-frames. In this paper, we present a new error-resilient coding scheme to alleviate the effect of error propagation for the new coding standard H.264. In this new coding standard, multiple reference frame is adopted to improve the coding efficiency. By making use of the reference frame buffer in the encoder, we can reference some macroblocks in every n/sup th/ inter-frame to the frame that is n frames interval away, and these macroblocks are named as periodic macroblocks. The periodic macroblock can efficiently alleviate the error propagation between two frames that contain periodic macroblocks. We prove it in theory that encoding selected periodic macroblocks will reduce the loss probability of pixel. The selection of periodic macroblock is based on the distortion expectation of each macroblock in every n/sup th/ frame. The number of periodic macroblocks in every n/sup th/ frame can be adjusted according to the available transmission bandwidth, as the periodic macroblock will consume little more bits. The simulation results prove that the periodic macroblocks can obviously improve the quality of video at different macroblock loss rates. When the macroblock lost rate is 15% in every frame, the PSNR of video sequence can be improved about 3dB with 5% bitrate increase.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ObjectType-Article-2
ObjectType-Feature-1
content type line 23
ISSN:0018-9316
1557-9611
DOI:10.1109/TBC.2006.874745