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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.8 No.5
- 발행연도
- 2019.10
- 수록면
- 347 - 357 (11page)
- DOI
- 10.5573/IEIESPC.2019.8.5.347
이용수
초록· 키워드
오류제보하기
Recently, some wavelet-based line compression methods for low-cost high-resolution image transmission have been studied. With these line compression methods, which are a combination of the multilevel discrete wavelet transform, predictive coding, and entropy coding, communications errors on the transmission channel can cause an image quality–degradation phenomenon of various line shapes. In this paper, we analyze image degradation patterns of wavelet-based hybrid line compression techniques caused by communications errors. Then, we propose an image quality–improvement method including a low-cost resynchronization technique by using a periodic reset to prevent the error propagation phenomenon of predictive coding, as well as an error concealment technique that uses only one additional line memory in the variable reference line–based decoder to improve degraded image quality. Experimental results showed that the proposed method achieved better image quality than the conventional techniques at the small expense of compression ratio while satisfying low-cost design conditions pursued by existing line compression systems.
목차
Abstract
1. Introduction
2. Related Work
3. The Proposed Scheme
4. Performance Evaluation
References
참고문헌 (19)
참고문헌 신청
Z. Lu / 2000 / Wavelet Compression of ECG Signals by the Set Partitioning in Hierarchical Trees Algorithm / IEEE Trans. Biomed. Eng 47(7):849~856
H.Y. Kim / 2019 / Study of a Line-based Low Memory Image Compression System
S. Kim / 2015 / An enhanced one-dimensional SPIHT algorithm and its implementation for TV systems / Journal of Displays 40:68~77
I. Moccagatta / 2000 / Error-Resilient Coding in JPEG-2000 and MPEG4 / IEEE Journal on Selected Areas in Communications 18(6):899~914
M. Sun / 2001 / Compressed Video over Networks / Marcel Dekker
H.Y. Kim / 2019 / Study of a Line-based Low Memory Image Compression System
S. Kim / 2015 / An enhanced one-dimensional SPIHT algorithm and its implementation for TV systems / Journal of Displays 40:68~77
I. Moccagatta / 2000 / Error-Resilient Coding in JPEG-2000 and MPEG4 / IEEE Journal on Selected Areas in Communications 18(6):899~914
M. Sun / 2001 / Compressed Video over Networks / Marcel Dekker
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UCI(KEPA) : I410-ECN-0101-2019-569-001222318