A New Approach for Restoring Block-Transform Coded Images with Estimation of Correlation Matrices

This paper presents a new restoration approach to reduce coding artifacts in block-transform image coding. Di erent from conventional restoration techniques, the proposed one is non-iterative and requires light computational cost, yet can reconstruct objectively and subjectively better images. This good performance is achieved because of the following advantages the proposed approach has: i e cient incorporation of the solution bound into restoration; and ii e ective exploitation of local image properties and statistical knowledge about the quantizers used.

• Type: Conference
• Year: 1997
• Where: ICIP
• Authors: Steven Sheung-On Choy, Yuk-Hee Chan, Wan-Chi Siu
• Keywords: Block-transform Image Coding, Conventional Restoration, ICIP 1997, Image Processing, Local Image Properties