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Pre-processing technique based on discrete cosine transform (DCT) and anisotropic contrast diffusion for wireless capsule endoscopy images

机译：基于离散余弦变换的预处理技术（DCT）和无线胶囊内窥镜图像的各向异性对比扩散

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Wireless capsule endoscopy (WCE) is useful to detect abnormal area in human digestive tract. However, many WCE images have low quality such as rather dark and noisy. Pre-processing is an important step in Computer Aided Detection (CAD) system to enhance the quality of WCE images in order to detect the abnormalities easier. To further enhance the image quality, anisotropic diffusion with Hessian matrix proposed by B. Li is applied to get contrast the image. However, this method still has weakness where an image is not sharp. To overcome this problem, Discrete Cosine Transform (DCT) is employed with anisotropic contrast diffusion in our proposed scheme. Experimental results of the proposed method are also presented in this paper.

机译：无线胶囊内窥镜检查（WCE）可用于检测人体消化道中的异常区域。然而，许多WCE图像具有低质量，例如相当黑暗和嘈杂。预处理是计算机辅助检测（CAD）系统的重要步骤，以提高WCE图像的质量，以便更容易地检测异常。为了进一步提高图像质量，应用B. Li提出的Hessian矩阵的各向异性扩散被应用于使图像形成对比。然而，这种方法仍然存在弱点，其中图像不是尖锐的。为了克服这个问题，在我们所提出的方案中，采用离散余弦变换（DCT）具有各向异性对比扩散。本文还提出了该方法的实验结果。

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《IEEE Conference on Biomedical Engineering and Sciences》|2014年||共6页
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作者
Shahril Rosdiana; Arianti Diah; Baharun Sabariah; Muzahidul Islam A.K.M.; Komaki Shozo;
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中图分类生物医学工程;
关键词
CAD; Hessian matrices; discrete cosine transforms; endoscopes; medical image processing; Hessian matrix; WCE images quality; anisotropic contrast diffusion; computer aided detection system; discrete cosine transform; human digestive tract; preprocessing technique; wireless capsule endoscopy images; Anisotropic magnetoresistance; Biomedical engineering; Conferences; Discrete cosine transforms; Frequency-domain analysis; Histograms; Noise;

机译：CAD;Hessian矩阵;离散余弦变换;内窥镜;医学图像处理;Hessian矩阵;WCE图像质量;各向异性对比扩散;计算机辅助检测系统;离散余弦变换;人体消化系统;预处理技术;各向异性磁阻;生物医学工程;会议;离散余弦变换;频域分析;直方图;噪音;

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2. Pre-processing Technique for Wireless Capsule Endoscopy Image Enhancement [J] . International Journal of Electrical and Computer Engineering . 2016,第4期

机译：无线胶囊内窥镜图像增强的预处理技术
3. A new Watermarking System based on Discrete Cosine Transform (DCT) in color biometric images. [J] . Sengul Dogan, Turker Tuncer, Engin Avci, Journal of medical systems . 2012,第4期

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4. Pre-processing technique based on discrete cosine transform (DCT) and anisotropic contrast diffusion for wireless capsule endoscopy images [C] . Shahril Rosdiana, Arianti Diah, Baharun Sabariah, 2014 IEEE Conference on Biomedical Engineering and Sciences . 2014

机译：基于离散余弦变换（DCT）和各向异性对比度扩散的无线胶囊内窥镜图像预处理技术
5. A study on computer -aided diagnosis for wireless capsule endoscopy images [D] . Li, Baopu 2008

机译：无线胶囊内窥镜图像计算机辅助诊断研究
6. Singular Value Decomposition Based Features for Automatic Tumor Detection in Wireless Capsule Endoscopy Images [O] . Vahid Faghih Dinevari, Ghader Karimian Khosroshahi, Mina Zolfy Lighvan 2016

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7. Comparison of Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and Stationary Wavelet Transform (SWT) based Satellite Image Fusion Techniques [O] . 2017

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Pre-processing technique based on discrete cosine transform (DCT) and anisotropic contrast diffusion for wireless capsule endoscopy images

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