نتایج جستجو برای: computer aided diagnosis texture analysis

تعداد نتایج: 3653168  

2004
Zigang Wang Lihong Li Joseph Anderson Donald Harrington Zhengrong Liang

In this paper, we propose a new technique to utilize both the morphological and the texture information of the colon wall for detection of colonic polyps. Firstly this method can quickly identify suspicious patches of the colon wall by employing special local and global geometrical information, different from other methods of utilizing local geometry only. By our edge-detection technology, the ...

Journal: :iranian journal of medical physics 0
b. sharif m.sc. in biomedical engineering, tehran university of medical sciences, tehran, iran. a. ahmadian assistant professor, physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran, iran m.a. oghabian research center for science & technology in medicine, imam khomeini hospital, tehran, iran. associate professor, physics and biomedical engineering, tehran university of medical sciences, tehran, iran. n. izadi mood assistant professor, phathology dept., tehran university of medical sciences, tehran, iran m. khoobdel assistant professor, military health research center, baqiyatallah university of medical sciences, tehran, iran

introduction: the process of discriminating among benign and malignant hyperplasia begun with subjective methods using light microscopy and is now being continued with computerized morphometrical analysis requiring some features. one of the main features called volume percentage of stroma (vps) is obtained by calculating the percentage of stroma texture. currently, this feature is calculated by...

2017
Meherwar Fatima Maruf Pasha M. Fatima M. Pasha

In medical imaging, Computer Aided Diagnosis (CAD) is a rapidly growing dynamic area of research. In recent years, significant attempts are made for the enhancement of computer aided diagnosis applications because errors in medical diagnostic systems can result in seriously misleading medical treatments. Machine learning is important in Computer Aided Diagnosis. After using an easy equation, ob...

2015
Hayan T. Madhloom Sameem Abdul Kareem Hany Ariffin

Computer-aided diagnosis system of leukemic cells is vital tool, which can assist domain experts in the diagnosis and evaluation procedure. Accurate blast cells segmentation is the initial stage in building a successful computer-aided diagnosis system. Blast cells segmentation is still an open research topic due to several problems such as variation of blats cells in terms of color, shape and t...

2012
Xinsheng Zhang Zhengshan Luo Minghu Wang

In order to develop an accurate computer-aided diagnosis system for the automatic detection of microcalcification clusters in mammograms. In this study, we presented a new microcalcification clusters detection method by using Gaussian Markov Random Fields (GMRFs) representation. The design and evaluation of the algorithm involved three main phases. In the first phase of the algorithm, a trainin...

2009
S. Agner M. Rosen S. Englander D. Sobers K. Thomas J. Tomaszewski M. Feldman S. Ganesan M. Schnall A. Madabhushi

Introduction: Previous studies [1,2] have suggested that genetic subtypes of breast cancer are associated with distinct imaging phenotypes on DCEMRI. However, previous attempts to distinguish molecular subtypes of breast cancer are based on qualitative, visual examination of the tumors. In our previous work, we developed a computer aided diagnosis (CAD) system that exploited textural changes wi...

Journal: :Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention 2009
Michael Häfner Alfred Gangl Roland Kwitt Andreas Uhl Andreas Vécsei Friedrich Wrba

The diagnosis of colorectal cancer is usually supported by a staging system, such as the Duke or TNM system. In this work we discuss computer-aided pit-pattern classification of surface structures observed during high-magnification colonoscopy in order to support dignity assessment of colonic polyps. This is considered a quite promising approach because it allows in vivo staging of colorectal l...

Fixture design is crucial part of manufacturing process. Fixture design is a critical design activity process, in which automation plays an integral role in linking computer-aided design (CAD) and computer-aided manufacturing (CAD). This paper presents a literature review in computer aided fixture design (CAFD) in terms of automation and optimization techniques over the past decades. First, the...

Computer-aided process planning (CAPP) is an essential component in linking computer-aided design (CAD) and computer-aided manufacturing (CAM). Operation sequencing in CAPP is an essential activity. Each sequence of production operations which is produced in a process plan cannot be the best possible sequence every time in a changing production environment. As the complexity of the product incr...

Journal: :Journal of International Society for Simulation Surgery 2016

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