Title :
A practical real-time post-processing technique for block effect elimination
Author :
Hong, Sung- Wai ; Chan, Yuk-Hee ; Siu, Wan-chi
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Hong Kong
Abstract :
In this paper, a non-iterative post-processing method is proposed to restore the images encoded with block-based compression standards such as JPEG. This method classifies small local boundary regions according to their intensity distribution and then select appropriate linear predictors to estimate the corresponding boundary pixels in the regions. This approach is easy to implement and we found in our simulations that its restoration performance was very respectable compared with the reported post-processing methods
Keywords :
data compression; estimation theory; image coding; image restoration; image segmentation; interference suppression; prediction theory; real-time systems; telecommunication standards; JPEG; block effect elimination; block-based compression standards; boundary pixels; intensity; linear predictors; local boundary regions; noniterative post-processing method; practical real-time post-processing technique; restoration performance; Computational modeling; Discrete cosine transforms; Electronics industry; Filtering; Image coding; Image quality; Image restoration; Industrial electronics; Pixel; Transform coding;
Conference_Titel :
Image Processing, 1996. Proceedings., International Conference on
Conference_Location :
Lausanne
Print_ISBN :
0-7803-3259-8
DOI :
10.1109/ICIP.1996.560590
