B-spline optimization and its application to video object shape coding

In the framework of object-based coding of digital video, shape information is essential for content-based access to video objects. In this paper, we investigate the use of cubic B-splines for video object shape approximation and coding. We propose an algorithm for a rate and distortion optimized B-...

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Bibliographic Details
Published inISPA 2001. Proceedings of the 2nd International Symposium on Image and Signal Processing and Analysis. In conjunction with 23rd International Conference on Information Technology Interfaces (IEEE Cat pp. 80 - 85
Main Authors Zaletelj, J., Tasic, J.F.
Format Conference Proceeding
LanguageEnglish
Published Piscataway NJ IEEE 2001
IEEE Service Center
Subjects
Applied sciences
Arithmetic
Encoding
Exact sciences and technology
Image processing
Information, signal and communications theory
MPEG 4 Standard
Multimedia databases
Optimal control
Rate distortion theory
Shape control
Signal processing
Software libraries
Spline
Telecommunications and information theory
Video coding
B spline
Performance evaluation
Image coding
Image processing
Object oriented
Arithmetic code
Motion compensation
Image compression
Algorithm
Optimization
Digital signal
Cubic spline
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Summary:In the framework of object-based coding of digital video, shape information is essential for content-based access to video objects. In this paper, we investigate the use of cubic B-splines for video object shape approximation and coding. We propose an algorithm for a rate and distortion optimized B-spline shape model, which is suitable for efficient inter-frame shape coding. Rate-distortion efficiency of the proposed algorithm is evaluated by comparison with two shape coding methods, MPEG-4 context arithmetic encoding and two stage motion compensated chain coding.
ISBN:9539676940
9789539676948
DOI:10.1109/ISPA.2001.938607