Title :
Modifications on morphology-based image coding
Author :
Cai, Zhaohui ; Subramanian, K.R. ; Cheng, Tee Hiang
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
fDate :
3/29/2001 12:00:00 AM
Abstract :
An extension of morphology-based image coding is presented. To achieve better coding efficiency neighbour coefficients are included in the significance map predictor and different subband quantisers are employed to achieve the optimal quantiser for each subband in a rate-distortion sense. Experimental results show that about 0.4-0.7 dB peak signal-to-noise ratio gain can be obtained
Keywords :
image coding; image morphing; mathematical morphology; quantisation (signal); coding efficiency; morphology-based image coding; neighbour coefficients; optimal quantiser; peak signal-to-noise ratio gain; rate-distortion sense; significance map predictor; subband quantisers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010297
