Two-stage wireless capsule image compression with low complexity and high quality

被引：12
|
作者：
Gu, Yingke [1 ]
Xie, Xiang [1 ]
Li, Guolin [2 ]
Sun, Tianjia [1 ]
Wang, Zhihua [1 ]
机构：
[1] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Elect, Beijing 100084, Peoples R China
来源：
ELECTRONICS LETTERS | 2012年 / 48卷 / 25期
关键词：
D O I：
10.1049/el.2012.3470
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Proposed is a two-stage image compression method for wireless capsule endoscopy images to provide high compression rate and high image quality. The first stage, implemented inside the wireless capsule, contains a very low complexity integer transform followed by an optimised quantisation and Huffman encoding. The second stage is a simple post-processing for high subjective visual quality of the reconstructed image, which is applied outside the capsule. The compression method can provide not only high compression rate (86%) and high image quality (39.2 dB), but also low computation complexity.
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页数：2
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