DocumentCode
3186390
Title
Advanced DCT rate control by single step analysis
Author
Bruna, A. ; Capra, A. ; Battiato, S. ; La Rosa, S.
Author_Institution
AST Catania Lab., STMicroelectron., Italy
fYear
2005
fDate
8-12 Jan. 2005
Firstpage
453
Lastpage
454
Abstract
The work presents a robust rate control algorithm for JPEG compression, mainly used in digital cameras. The overall control is based on the statistical properties of JPEG compressed images, the relationship between the coding bit rate and the percentage of zeros among the quantized transform coefficients. It allows a good trade off between resources and precision to be obtained.
Keywords
data compression; discrete cosine transforms; image coding; quantisation (signal); statistical analysis; transform coding; DCT rate control; JPEG compression; coding bit rate; digital cameras; image compression; quantized transform coefficients; single step analysis; statistical properties; Bit rate; Digital cameras; Discrete cosine transforms; Energy consumption; Engines; Histograms; Image coding; Iterative algorithms; Quantization; Transform coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Consumer Electronics, 2005. ICCE. 2005 Digest of Technical Papers. International Conference on
Print_ISBN
0-7803-8838-0
Type
conf
DOI
10.1109/ICCE.2005.1429913
Filename
1429913
Link To Document