An Efficient Wavelet-Based ROI Coding for Multiple Regions

被引：1

作者：

Shinoda, Kazuma ^{[1
]}

Kobayashi, Naoki ^{[1
]}

Katoh, Ayako ^{[1
]}

Komagata, Hideki ^{[1
]}

Ishikawa, Masahiro ^{[1
]}

Murakami, Yuri ^{[2
]}

Yamaguchi, Masahiro ^{[2
]}

Abe, Tokiya ^{[3
]}

Hashiguchi, Akinori ^{[3
]}

Sakamoto, Michiie ^{[3
]}

机构：

[1] Saitama Med Univ, Fac Hlth & Med Care, Hidaka 3501241, Japan

[2] Tokyo Inst Technol, Global Sci Informat & Comp Ctr, Yokohama, Kanagawa 2268503, Japan

[3] Keio Univ, Sch Med, Tokyo 1608582, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2015年 / E98A卷 / 04期

关键词：

ROI coding; JPEG2000; wavelet transform; IMAGE COMPRESSION;

D O I：

10.1587/transfun.E98.A.1006

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Region of interest (ROI) coding is a useful function for many applications. JPEG2000 supports ROI coding and can decode ROIs preferentially regardless of the shape and number of the regions. However, if the number of regions is quite large, the ROI coding performance of JPEG2000 declines because the code-stream includes many useless non-ROI codes. This paper proposes a wavelet-based ROI coding method suited for multiple ROIs. The proposed wavelet transform does not access any non-ROIs when transforming the ROIs. Additionally, the proposed method eliminates the need for unnecessary coding of the bits in the higher bit planes of non-ROI regions by adding an ROI map to the code-stream. The experimental results show that the proposed method achieves a higher peak signal-to-noise ratio than the ROI coding of JPEG2000. The proposed method can be applied to both max-shift and scaling-based ROI coding.

引用

页码：1006 / 1020

页数：15

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