Title :
Post filtering methods for reducing blocking effects from coded images
Author :
Jarske, Tiina ; Haavisto, Petri ; Defée, Irek
Author_Institution :
Signal Process. Lab., Tampere Univ. of Technol., Finland
fDate :
8/1/1994 12:00:00 AM
Abstract :
Computationally simple post-filtering methods for block-coded image sequences are presented. Post-filtering design requires compromises between smoothing the block edges and retaining the image sharpness. The proposed filters offer a feasible method to improve the subjective quality of image sequences coded at low bit rates
Keywords :
filtering and prediction theory; image coding; image sequences; video signals; block-coded image sequences; blocking effects reduction; image sharpness; low bit rate coding; post-filtering methods; subjective image quality; video signals; Bit rate; Discrete cosine transforms; Filtering; Image sequences; Laboratories; Low pass filters; Signal processing; Smoothing methods; Standards development; Teleconferencing;
Journal_Title :
Consumer Electronics, IEEE Transactions on
