학술논문

Systematic analysis and methodology of real-time DSP implementation for hybrid video coding
Document Type
Conference
Source
Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348) Image processing Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on. 3:847-851 vol.3 1999
Subject
Signal Processing and Analysis
Computing and Processing
Real time systems
Digital signal processing
MPEG 4 Standard
Video coding
Motion estimation
Discrete cosine transforms
Optimization methods
Parallel processing
Codecs
Object segmentation
Language
Abstract
This paper presents a general and comprehensive analysis of major issues and difficulties in real-time DSP implementation of hybrid video coding. Methodologies for MOPS reduction of motion estimation and DCT, code optimization, task division in parallel processing, and codec adaptation are addressed. Performance of realtime H.263 and MPEG-4 video system with these techniques are demonstrated. Video object segmentation and its implementation in an MPEG-4 system are also discussed.