JPEG 2000: Image Compression Fundamentals, Standards and Practice
JPEG 2000: Image Compression Fundamentals, Standards and Practice
Lossless compression of map contours by context tree modeling of chain codes
Pattern Recognition
Costs and advantages of object-based image coding with shape-adaptive wavelet transform
Journal on Image and Video Processing
EURASIP Journal on Applied Signal Processing
High performance scalable image compression with EBCOT
IEEE Transactions on Image Processing
Context-based coding of bilevel images enhanced by digital straight line analysis
IEEE Transactions on Image Processing
Shape-adaptive discrete wavelet transforms for arbitrarily shaped visual object coding
IEEE Transactions on Circuits and Systems for Video Technology
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This work introduces techniques addressed to enhance the coding performance obtained when compressing images that contain areas with irrelevant information, here called no-data regions. No-data regions can be produced due to several factors, such as geometric corrections, overlapping of successive layers of information, a malfunction of the sensor used to capture the image, etc. Most coding systems are not devised to consider such regions separately from the rest of the image, sometimes causing an important loss in the coding efficiency. Within the framework JPEG2000, we propose five techniques that address this issue. Experimental results suggest that the application of the proposed techniques can achieve, in some cases, a compression gain of 130 over a compression without applying the proposed techniques.