Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Jiazheng Shi"'
Autor:
Ji Ming, Qiao Xue, Jiazheng Shi, Shang Yuxin, Lei Shi, Shen Xiangcheng, Hu Qiaoling, Wang Jianpeng, Sun Xigui
Publikováno v:
Integrated Ferroelectrics. 210:207-215
In this article, a novel chromium-free passivation agent contained sodium molybdate, sodium citrate, sodium phosphate, tannin, 1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP) and cobalt nitrate w...
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 772:012074
To study the jet forming characteristics of energetic material liner, in this paper, using AUTODYN simulation software and smoothed particle hydrodynamics (SPH) algorithm, the jet forming process of traditional metal Al liner and PTFE/Al energetic li
Autor:
Chuan Zhou, Heang Ping Chan, Lubomir M. Hadjiiski, Yi-Ta Wu, Yiheng Zhang, Julie A. Douglas, Jiazheng Shi, Jun Wei, Caroline P. Daly, Chintana Paramagul, Berkman Sahiner
Publikováno v:
Medical Physics. 37:391-401
Purpose: Automated detection of breast boundary is one of the fundamental steps for computer-aided analysis of mammograms. In this study, the authors developed a new dynamic multiple thresholding based breast boundary (MTBB) detection method for digi
Autor:
Heang Ping Chan, Chintana Paramagul, Lubomir M. Hadjiiski, Berkman Sahiner, Mark A. Helvie, Jiazheng Shi, Thomas L. Chenevert
Publikováno v:
Medical Physics. 36:5052-5063
The goal of this study was to develop an automated method to segment breast masses on dynamic contrast-enhanced (DCE) magnetic resonance (MR) scans and to evaluate its potential for estimating tumor volume on pre- and postchemotherapy images and tumo
Autor:
Alexis V. Nees, Chintana Paramagul, Chuan Zhou, Berkman Sahiner, Jiazheng Shi, Heang Ping Chan, Jing Cui, Lubomir M. Hadjiiski
Publikováno v:
Medical Physics. 36:1553-1565
Segmentation is one of the first steps in most computer-aided diagnosis systems for characterization of masses as malignant or benign. In this study, the authors designed an automated method for segmentation of breast masses on ultrasound (US) images
Publikováno v:
Pattern Recognition. 41:1948-1960
Histogram-based and region-based segmentation approaches have been widely used in image segmentation. Difficulties arise when we use these techniques, such as the selection of a proper threshold value for the histogram-based technique and the over-se
Autor:
Chuan Zhou, Berkman Sahiner, Heang Ping Chan, Jun Ge, Lubomir M. Hadjiiski, Yi-Ta Wu, Yiheng Zhang, Jun Wei, Jiazheng Shi
Publikováno v:
Medical Physics. 34:3334-3344
We have developed a false positive (FP) reduction method based on analysis of bilateral mammograms for computerized mass detection systems. The mass candidates on each view were first detected by our unilateral computer-aided detection (CAD) system.
Autor:
Berkman Sahiner, Ella A. Kazerooni, Naama Bogot, Jiazheng Shi, Philip N. Cascade, Lubomir M. Hadjiiski, Jun Wei, Chuan Zhou, Heang Ping Chan, Yi-Ta Wu
Publikováno v:
Medical Physics. 34:1336-1347
An automated method is being developed in order to identify corresponding nodules in serial thoracic CT scans for interval change analysis. The method uses the rib centerlines as the reference for initial nodule registration. A spatially adaptive rib
Publikováno v:
Computer Vision and Image Understanding. 102:117-133
This paper evaluates how biologically meaningful landmarks and their geometry extracted from face images can be used for face recognition. The traditional Procrustes distance is studied for the landmark-based face model. By using complex principal co
Publikováno v:
Real-Time Systems. 29:183-204
This paper presents the design and implementation of a real-time solution for the global control of robotic highway safety markers. Problems addressed in the system are: (1) poor scalability and predictability as the number of markers increases, (2)