Abstract
This paper presents a DSP implementation of real-time JPEG 2000 encoder system. Among several modules in JPEG 2000 encoder, the lifting algorithm for discrete wavelet transform (DWT) and the embedded block coding with optimized truncation (EBCOT) comprise more than 85% of the encoding complexity. Thus, it is very important to design and optimize these two modules in order to increase the encoding performance. First, we propose a overlapped block transferring (OBT) method that can significantly improve the performance of the lifting algorithm for DWT by increasing the cache hit rate. Next, we introduce a pipelined processing of passes (PPP) method for fast implementation of EBCOT Tier-1. This method reduces the processing time of EBCOT Tier-1 by processing the three coding passes of the same bit-plane like pipeline. Moreover, we propose a computationally efficient method of EBCOT Tier-2 to predict the truncation point by using the temporal redundancy in the image sequence. Experimental results show that our developed Motion-JPEG 2000 DSP system meets the common requirement of the real-time video coding [30 frames/s (fps)] and is proven to be a practical and efficient DSP solution.
| Original language | English |
|---|---|
| Pages (from-to) | 333-341 |
| Number of pages | 9 |
| Journal | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
| Volume | 3296 |
| Publication status | Published - 2004 Dec 1 |
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ASJC Scopus subject areas
- Computer Science(all)
- Biochemistry, Genetics and Molecular Biology(all)
- Theoretical Computer Science
Cite this
DSP Implementation of Real-Time JPEG2000 Encoder using overlapped block transferring and pipelined processing. / Choi, Byeong Doo; Hwang, Min Cheol; Nam, Ju Hun; Lee, Kyung Hoon; Ko, Sung-Jea.
In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 3296, 01.12.2004, p. 333-341.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - DSP Implementation of Real-Time JPEG2000 Encoder using overlapped block transferring and pipelined processing
AU - Choi, Byeong Doo
AU - Hwang, Min Cheol
AU - Nam, Ju Hun
AU - Lee, Kyung Hoon
AU - Ko, Sung-Jea
PY - 2004/12/1
Y1 - 2004/12/1
N2 - This paper presents a DSP implementation of real-time JPEG 2000 encoder system. Among several modules in JPEG 2000 encoder, the lifting algorithm for discrete wavelet transform (DWT) and the embedded block coding with optimized truncation (EBCOT) comprise more than 85% of the encoding complexity. Thus, it is very important to design and optimize these two modules in order to increase the encoding performance. First, we propose a overlapped block transferring (OBT) method that can significantly improve the performance of the lifting algorithm for DWT by increasing the cache hit rate. Next, we introduce a pipelined processing of passes (PPP) method for fast implementation of EBCOT Tier-1. This method reduces the processing time of EBCOT Tier-1 by processing the three coding passes of the same bit-plane like pipeline. Moreover, we propose a computationally efficient method of EBCOT Tier-2 to predict the truncation point by using the temporal redundancy in the image sequence. Experimental results show that our developed Motion-JPEG 2000 DSP system meets the common requirement of the real-time video coding [30 frames/s (fps)] and is proven to be a practical and efficient DSP solution.
AB - This paper presents a DSP implementation of real-time JPEG 2000 encoder system. Among several modules in JPEG 2000 encoder, the lifting algorithm for discrete wavelet transform (DWT) and the embedded block coding with optimized truncation (EBCOT) comprise more than 85% of the encoding complexity. Thus, it is very important to design and optimize these two modules in order to increase the encoding performance. First, we propose a overlapped block transferring (OBT) method that can significantly improve the performance of the lifting algorithm for DWT by increasing the cache hit rate. Next, we introduce a pipelined processing of passes (PPP) method for fast implementation of EBCOT Tier-1. This method reduces the processing time of EBCOT Tier-1 by processing the three coding passes of the same bit-plane like pipeline. Moreover, we propose a computationally efficient method of EBCOT Tier-2 to predict the truncation point by using the temporal redundancy in the image sequence. Experimental results show that our developed Motion-JPEG 2000 DSP system meets the common requirement of the real-time video coding [30 frames/s (fps)] and is proven to be a practical and efficient DSP solution.
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M3 - Article
VL - 3296
SP - 333
EP - 341
JO - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
JF - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SN - 0302-9743
ER -