A Fast Algorithm for Orthogonalizing Polynomials on anArbitrarily Shaped Region (Revised Version)
Multidimensional Systems and Signal Processing
Shape-Adaptive DCT Algorithm - Hardware Optimized Redesign
CAIP '01 Proceedings of the 9th International Conference on Computer Analysis of Images and Patterns
Coding of Irregular Image Regions by SA DFT
CAIP '01 Proceedings of the 9th International Conference on Computer Analysis of Images and Patterns
Region-adaptive transform based on a stochastic model
ICIP '95 Proceedings of the 1995 International Conference on Image Processing (Vol.2)-Volume 2 - Volume 2
Energy-efficient Hardware Accelerators for the SA-DCT and Its Inverse
Journal of VLSI Signal Processing Systems
Energy-efficient acceleration of MPEG-4 compression tools
EURASIP Journal on Embedded Systems
On Feature Extraction Capabilities of Fast Orthogonal Neural Networks
ICANNGA '07 Proceedings of the 8th international conference on Adaptive and Natural Computing Algorithms, Part II
IEICE - Transactions on Information and Systems
A New Object-Based Fractal Compression of Monocular and Stereo Video Sequences
ICIAR '09 Proceedings of the 6th International Conference on Image Analysis and Recognition
Transformation techniques for future video coding
Proceedings of the 5th International ICST Mobile Multimedia Communications Conference
Morphology-based shape adaptive compression
MMM'11 Proceedings of the 17th international conference on Advances in multimedia modeling - Volume Part II
Generalized zigzag scanning algorithm for non-square blocks
MMM'11 Proceedings of the 17th international conference on Advances in multimedia modeling - Volume Part II
A novel image coding method with visual cortical model
AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
UML based evaluation of reconfigurable shape adaptive DCT for embedded stream processing
EUC'06 Proceedings of the 2006 international conference on Emerging Directions in Embedded and Ubiquitous Computing
Efficient adaptive-shape partitioning of video
Multimedia Tools and Applications
Arbitrarily shaped virtual-object based video compression
Multimedia Tools and Applications
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A low complexity shape-adaptive DCT algorithm suitable for coding pels in arbitrarily shaped image segments is introduced. In contrast to other techniques described in literature the proposed algorithm is based on predefined orthogonal sets of DCT basis functions and does not require more computations than a normal block DCT. It is shown that the shape-adaptive DCT algorithm can be easily incorporated into existing block-based JPEG, H.261, or MPEG coding schemes. Thus segment or object based coding of images and video can be provided with backward compatibility to existing coding standards. As an important feature, with the proposed technique additional content based functionalities currently discussed in the MPEG-4 standardization phase can be readily achieved