Výsledky vyhledávání - "Allen Poirson"

Automated image analysis of uterine cervical images

Autor: Jia Gu, Daron G. Ferris, Allen Poirson, Wenjing Li

Publikováno v: Medical Imaging: Computer-Aided Diagnosis

Cervical Cancer is the second most common cancer among women worldwide and the leading cause of cancer mortality of women in developing countries. If detected early and treated adequately, cervical cancer can be virtually prevented. Cervical precurso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97620f6f6ae7552d707258f04e71d71a
https://doi.org/10.1117/12.708710

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Computer-aided diagnosis (CAD) for colonoscopy

Autor: Jia Gu, Allen Poirson

Publikováno v: Medical Imaging: Computer-Aided Diagnosis

Colorectal cancer is the second l eading cause of cancer deaths, and ranks third for new cancer cases and cancer mortality for both men and women. However, its death rate can be dramatically reduced by appropriate treatment when early de tection is a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62c7301e8e1268e72bda51f6fdecc8d3
https://doi.org/10.1117/12.709001

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Toward automated model building from video in computer-assisted diagnoses in colonoscopy

Autor: Dan Koppel, Allen Poirson, Chao-I Chen, Hua Lee, Jia Gu, Yuan-Fang Wang, Rolf Wolters

Publikováno v: Medical Imaging: Image-Guided Procedures

A 3D colon model is an essential component of a computer-aided diagnosis (CAD) system in colonoscopy to assist surgeons in visualization, and surgical planning and training. This research is thus aimed at developing the ability to construct a 3D colo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffbc65bb470914710045da7375db344f
https://doi.org/10.1117/12.709595

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Detection and Characterization of Abnormal Vascular Patterns in Automated Cervical Image Analysis

Autor: Wenjing Li, Allen Poirson

Publikováno v: Advances in Visual Computing ISBN: 9783540486268
ISVC (2)

In colposcopy, mosaic and punctation are two major abnormal vessels associated with cervical intraepithelial neoplasia (CIN). Detection and characterization of mosaic and punctation in digital cervical images is a crucial step towards developing a co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ea0f28171a94884f6909f812a4ce968
https://doi.org/10.1007/11919629_63

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Computer-Aided-Diagnosis (CAD) in Colonoscopy Using Texture Analysis

Autor: Allen Poirson, Jia Gu

Publikováno v: American Journal of Gastroenterology. 101:S525-S526

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ce5d8db8b65283a4d3539b58afba69e
https://doi.org/10.14309/00000434-200609001-01372

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Use of a raster framebuffer in vision research

Autor: Andrew B. Watson, Kenneth R. K. Nielsen, Andrew Fitzhugh, Amy Jo Bilson, Albert J. Ahumada, Khanh Nguyen, Allen Poirson

Publikováno v: Behavior Research Methods, Instruments, & Computers. 18:587-594

For the study of human and animal vision, the video framebuffer is the only technology that is capable of displaying two-dimensional images with precise control of contrast, luminance, and display timing. The video framebuffer also allows precise con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8e353ee2d8fa290160981baad95ba7b
https://doi.org/10.3758/bf03201433

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Color measurement using complex stimuli

Autor: Allen Poirson, Brian A. Wandell

Publikováno v: Annual Meeting Optical Society of America.

Classic color difference measurement paradigms model observing conditions in which an observer has time to inspect a visual field and make a careful judgment. We report data collected at three color locations using a new paradigm that extends color d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a969e6a86363a69547369322b6afe5a4
https://doi.org/10.1364/oam.1988.ml1

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Model for space-varying cone placement in the fovea

Autor: Allen Poirson, Albert Ahumada

Publikováno v: Annual Meeting Optical Society of America.

We present a model for the placement of cones in the fovea which is an extension of the model for the near foveolar region presented by Ahumada and Poirson (ARVO 1986). This model has three parameters which can vary with eccentricity: (1) the radius

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f48c3b02651e88697c64860191b172bf
https://doi.org/10.1364/oam.1986.wg52

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Separable two-dimensional discrete Hartley transform

Autor: Allen Poirson, Andrew B. Watson

Publikováno v: Journal of the Optical Society of America A. 3:2001

Bracewell has proposed the Discrete Hartley Transform (DHT) as a substitute for the Discrete Fourier Transform (DFT), particularly as a means of convolution. Here, it is shown that the most natural extension of the DHT to two dimensions fails to be s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85c8f0c658a6ceace33f6b266e18fcf4
https://doi.org/10.1364/josaa.3.002001

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