A Low-Complexity Image Compression Method which Reduces Memories Used in Multimedia Processor Implementation
- Title
- A Low-Complexity Image Compression Method which Reduces Memories Used in Multimedia Processor Implementation
- Author
- 이동호
- Issue Date
- 2003-07
- Publisher
- 대한전자공학회
- Citation
- ITC-CSCC : 2003 page.1226 - 1229
- Abstract
- This paper presents an efficient image compression method for memory reduction in
multimedia processor which can be simply implemented in hardware and provides high
performance. The multimedia processor, which includes processing of high-resolution
images and videos, requires large memories: they are external frame memories to
store frames and internal line memories for implementing some linear filters.
If we can reduce those memories by adopting a simple compression method in
multimedia processor, it will strengthen its cost competitiveness. There exist
many standards for efficiently compressing images and videos.
However, those standards are too complex for our purpose and most of them are
2-D block-based methods, which do not support raster scanned input and output.
In this paper, we propose a low-complexity compression method which has good
performance, can be implemented with simple hardware logic, and supports raster
scan. We have adopted 1x8 Hadamard transform for simple implementation in hardware
and compression efficiency. After analyzing the coefficients, we applied an adaptive
thresholding and quantization. We provide some simulation results to analyze its
performance and compare with the existing methods. We also provide its hardware
implementation results and discuss about cost reduction effects when applied in
implementing a multimedia processor.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01742487https://repository.hanyang.ac.kr/handle/20.500.11754/156096
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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