MPEG-7 visual descriptors - Contributions for automated feature extraction in capsule endoscopy

被引:125
作者
Coimbra, Miguel Tavares [1 ]
Cunha, Joao Paulo Silva [1 ]
机构
[1] Univ Aveiro, IEETA, P-3810193 Aveiro, Portugal
关键词
mPEG-7; video annotation; visual descriptors; wireless capsule endoscopy;
D O I
10.1109/TCSVT.2006.873158
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
Recent advances in miniaturization led to the development of what is now called the endoscopic capsule. This small device is swallowed by a patient ana films the whole gastrointestinal tract, allowing the detection of abnormalities. Currently, a doctor typically needs up to two hours to analyze a full exam, so automation is desirable. This paper presents a methodology for measuring the potential of selected visual MPEG-7 descriptors for the task of specific medical event detection such as blood, ulcers. Experiments show that the best results are obtained by the Scalable Color and Homogenous Texture descriptors, especially if only relevant coefficients are used.
引用
收藏
页码:628 / 637
页数:10
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