Dr. James Stuart Whiting Profile

Dr. James Stuart Whiting

Director at Cedars Sinai Medical Ctr

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Author

Publications (27)

Proceedings Article | 3 March 2010 Paper

Model observers for complex discrimination tasks: assessments of multiple coronary stent placements

Sheng Zhang, Craig Abbey, Arian Teymoorian, Xiaolin Da, James Whiting, Miguel Eckstein

Proceedings Volume 7627, 76270W (2010) https://doi.org/10.1117/12.846378

KEYWORDS: Performance modeling, Angiography, Signal detection, Visualization, Motion models, Eye, Medical imaging, Visual process modeling, Electronic filtering, Interference (communication)

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Proceedings Article | 13 March 2009 Paper

Motion and display effects on perception of multiple coronary stents

Sheng Zhang, Craig Abbey, Arian Teymoorian, Xiaolin Da, James Whiting, Miguel Eckstein

Proceedings Volume 7263, 726306 (2009) https://doi.org/10.1117/12.813858

KEYWORDS: Angiography, Electronic filtering, Medical imaging, Fluoroscopy, X-rays, Signal detection, Visualization, Databases, Computer simulations, Arteries

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Proceedings Article | 6 March 2008 Paper

Perceptual assessment of multiple stent deployment

Craig Abbey, Arian Teymoorian, Wade Schoonveld, Xiaolin Da, Sheng Zhang, James Whiting, Miguel Eckstein

Proceedings Volume 6917, 691717 (2008) https://doi.org/10.1117/12.773044

KEYWORDS: Angiography, Databases, Image processing, Absorbance, Image transmission, Medical imaging, Signal attenuation, Arteries, X-ray imaging, X-rays

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Proceedings Article | 5 May 2004 Paper

Stabilized display of coronary x-ray image sequences

Robert Close, James Whiting, Xiaolin Da, Neal Eigler

Proceedings Volume 5367, (2004) https://doi.org/10.1117/12.535854

KEYWORDS: Angiography, Visualization, Arteries, Automatic tracking, X-ray imaging, Detection and tracking algorithms, Imaging systems, X-rays, Medical imaging, Optical tracking

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Proceedings Article | 3 May 2002 Paper

Experimental demonstration of automated scatter-glare correction in fluoroscopic images

Robert Close, Craig Morioka, James Whiting

Proceedings Volume 4682, (2002) https://doi.org/10.1117/12.465576

KEYWORDS: X-rays, Scattering, X-ray imaging, Convolution, Sensors, Error analysis, Signal attenuation, Image intensifiers, Laser scattering, X-ray detectors

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Proceedings Article | 3 July 2001 Paper

Improved detection of simulated thrombus by layer decomposition of coronary angiograms

Robert Close, Craig Morioka, Craig Abbey, James Whiting

Proceedings Volume 4322, (2001) https://doi.org/10.1117/12.431150

KEYWORDS: Angiography, Arteries, Eye, Digital imaging, Image filtering, Signal to noise ratio, Motion estimation, Image processing, Signal processing, Computer simulations

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Proceedings Article | 6 June 2000 Paper

Layer decomposition of coronary angiograms

Robert Close, Craig Abbey, James Whiting

Proceedings Volume 3979, (2000) https://doi.org/10.1117/12.387630

KEYWORDS: Angiography, Motion models, Motion estimation, X-ray imaging, X-rays, Visibility, Image segmentation, Arteries, 3D image processing, X-ray detectors

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Proceedings Article | 18 April 2000 Paper

Improved image guidance of coronary stent deployment

Robert Close, Craig Abbey, James Whiting

Proceedings Volume 3976, (2000) https://doi.org/10.1117/12.383052

KEYWORDS: X-rays, Arteries, Angiography, Motion measurement, Visibility, X-ray imaging, Visualization, Head, Motion models, Chest

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Proceedings Article | 24 May 1999 Paper

Effect of image compression in model and human performance

Miguel Eckstein, Craig Abbey, Francois Bochud, Jay Bartroff, James Whiting

Proceedings Volume 3663, (1999) https://doi.org/10.1117/12.349649

KEYWORDS: Performance modeling, Image compression, Eye models, Image filtering, Image quality, Mathematical modeling, Angiography, Statistical modeling, Visual process modeling, Eye

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Proceedings Article | 24 May 1999 Paper

Image compression and feature stabilization of dynamically displayed coronary angiograms

Jay Bartroff, Craig Morioka, James Whiting, Miguel Eckstein

Proceedings Volume 3663, (1999) https://doi.org/10.1117/12.349660

KEYWORDS: Image compression, Angiography, Arteries, Image quality, X-rays, Computer simulations, Visualization, Visual compression, Gold, Medical imaging

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Proceedings Article | 21 May 1999 Paper

Decomposition of coronary angiograms into nonrigid moving layers

Robert Close, James Whiting

Proceedings Volume 3661, (1999) https://doi.org/10.1117/12.348553

KEYWORDS: Angiography, Signal attenuation, Arteries, X-rays, Visualization, Image segmentation, Correlation function, Optical flow, Absorbance, Motion estimation

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Proceedings Article | 21 May 1999 Paper

Investigation of a band-pass filter using view-specific image sequences for edge enhancement in quantitative coronary angiography

Craig Morioka, Francois Bochud, Craig Abbey, Miguel Eckstein, James Whiting

Proceedings Volume 3661, (1999) https://doi.org/10.1117/12.348563

KEYWORDS: Bandpass filters, Arteries, Image filtering, Angiography, Image enhancement, Linear filtering, Medical imaging, X-ray imaging, X-rays, Optical filters

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Proceedings Article | 24 July 1998 Paper

Automatic correction of x-ray scatter and veiling glare in simulated fluoroscopic images

Robert Close, Kokila Shah, James Whiting

Proceedings Volume 3336, (1998) https://doi.org/10.1117/12.317072

KEYWORDS: X-rays, X-ray imaging, Calibration, Image filtering, Signal attenuation, Convolution, Scattering, Image intensifiers, Point spread functions, Gaussian filters

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Proceedings Article | 24 June 1998 Paper

Measuring the accuracy and precision of quantitative coronary angiography using a digitally simulated test phantom

Craig Morioka, James Whiting, Michelle LeFree

Proceedings Volume 3338, (1998) https://doi.org/10.1117/12.310855

KEYWORDS: Arteries, Angiography, X-rays, Computer simulations, Edge detection, Signal attenuation, Image segmentation, Image intensifiers, Therapeutics, X-ray imaging

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Proceedings Article | 21 April 1998 Paper

Human vs model observers in anatomic backgrounds

Miguel Eckstein, Craig Abbey, James Whiting

Proceedings Volume 3340, (1998) https://doi.org/10.1117/12.306180

KEYWORDS: Performance modeling, Eye models, Data modeling, Medical imaging, Signal detection, Statistical analysis, Statistical modeling, Interference (communication), Visual process modeling, Mathematical modeling

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Proceedings Article | 21 April 1998 Paper

Quantifying the limitations of the use of consensus expert committees in ROC studies

Miguel Eckstein, Thomas Wickens, Gal Aharonov, George Ruan, Craig Morioka, James Whiting

Proceedings Volume 3340, (1998) https://doi.org/10.1117/12.306177

KEYWORDS: Gold, Signal detection, Cardiology, Psychophysics, Image quality standards, Computer simulations, Diagnostics, Medical imaging, X-rays, Angiography

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Proceedings Article | 2 May 1997 Paper

Fluoroscopic 3D reconstruction of coronary stents

Robert Close, Craig Morioka, James Whiting

Proceedings Volume 3032, (1997) https://doi.org/10.1117/12.274014

KEYWORDS: 3D modeling, 3D image processing, Inspection, Intravascular ultrasound, 3D image reconstruction, X-rays, Stereoscopy, Fluoroscopy, Motion measurement, Image intensifiers

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Proceedings Article | 16 April 1997 Paper

What is degrading human visual detection peformance in natural medical image backgrounds?

Miguel Eckstein, Albert Ahumada, Andrew Watson, James Whiting

Proceedings Volume 3036, (1997) https://doi.org/10.1117/12.271311

KEYWORDS: Signal detection, Medical imaging, Performance modeling, Visualization, Visual process modeling, Image processing, Interference (communication), Statistical modeling, Data modeling, Image quality

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Proceedings Article | 16 April 1996 Paper

Multiframe quantitative coronary arteriography

Craig Morioka, James Whiting, Miguel Eckstein, Kokila Shah

Proceedings Volume 2710, (1996) https://doi.org/10.1117/12.237913

KEYWORDS: Arteries, Angiography, Edge detection, Detection and tracking algorithms, Image segmentation, Error analysis, 3D modeling, Signal attenuation, Motion measurement, 3D image processing

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Proceedings Article | 11 April 1996 Paper

Maximum likelihood technique for blind noise estimation

Robert Close, James Whiting

Proceedings Volume 2708, (1996) https://doi.org/10.1117/12.237784

KEYWORDS: Interference (communication), Statistical analysis, Image filtering, Image analysis, Filtering (signal processing), Digital filtering, Error analysis, Analytical research, Electronic filtering, Image compression

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Proceedings Article | 27 March 1996 Paper

Detection and contrast discrimination of moving signals in uncorrelated Gaussian noise

Miguel Eckstein, James Whiting, James Thomas

Proceedings Volume 2712, (1996) https://doi.org/10.1117/12.236855

KEYWORDS: Signal detection, Interference (communication), Signal to noise ratio, Visualization, Electronic filtering, Image filtering, Detection theory, Performance modeling, Data modeling, Eye

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Proceedings Article | 27 March 1996 Paper

Effect of additive noise, signal contrast, and feature motion on visual detection in structured noise

James Whiting, Miguel Eckstein, Craig Morioka, Neal Eigler

Proceedings Volume 2712, (1996) https://doi.org/10.1117/12.236858

KEYWORDS: Signal detection, Interference (communication), Arteries, Visualization, Image segmentation, Signal to noise ratio, Angiography, Medical imaging, Detection theory, Motion detection

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This paper investigates signal detectability in a fixed structured background as a function of signal contrast, additive white noise and feature motion. We use a 4 AFC (alternative forced choice) detection task where the signal appeared at the center of one of four identical, clearly visible, simulated cylindrical artery segments. All four segments moved identically relative to the background in 32-frame image sequences displayed at 15 frames per second. The background in one condition was uniform and in a second condition was structured noise consisting of a single frame randomly selected from a group of clinical x-ray coronary angiograms. We studied two display formats, the 'moving artery' display in which the background was stationary and the cylinders moved back and forth, simulating the motion of the coronary arteries, and the 'stabilized artery' in which each frame of the sequence was translated to keep the cylinders stationary, while the background moved back and forth. The signal to be detected was a disk superimposed at the center of one of the simulated cylinders. Signal energy and the variance of additive Gaussian spatiotemporal white noise were manipulated. For each level of additive white noise the threshold signal energy for detection (at the 82% correct performance level) was determined. There was no time limit to reach decision. For all conditions the threshold signal energy increased linearly with added white noise variance, with a positive y-intercept. The presence of the structured background increased both the y-intercept and the slope of this relationship between threshold energy and added white noise variance. Thus, the presence of the structured background had a multiplicative effect, as well as an additive effect, on the degradation of performance due to added white noise. The multiplicative effect might be modeled by an increase in induced internal noise (noise proportional to the external noise) with the presence of the structured background. Such an effect, if it occurs in the setting of clinical coronary angiography, would cause changes in radiation exposure (and thus quantum noise) to affect visual perception more than expected from experiments with white noise alone. One possible mechanism for this effect may be that the added random noise interferes with the observer's use of spatiotemporal correlations to 'subtract' or 'read around' the structured noise.

Proceedings Article | 9 October 1995 Paper

Regularization technique for restoration of x-ray fluoroscopic images

Robert Close, James Whiting

Proceedings Volume 2570, (1995) https://doi.org/10.1117/12.224156

KEYWORDS: X-rays, X-ray imaging, Calibration, Convolution, Laser scattering, Scattering, Interference (communication), Deconvolution, Superposition, Point spread functions

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Proceedings Article | 12 May 1995 Paper

Motion-compensated signal and background estimation from coronary angiograms

Robert Close, James Whiting

Proceedings Volume 2434, (1995) https://doi.org/10.1117/12.208690

KEYWORDS: Image segmentation, Angiography, Arteries, Motion estimation, Motion models, Image enhancement, 3D modeling, Data modeling, Visualization, Physics

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Proceedings Article | 17 April 1995 Paper

Psychophysical evaluation of the effect of JPEG, full-frame DCT and wavelet image compression on signal detection in medical image noise

Miguel Eckstein, Craig Morioka, James Whiting, Neal Eigler

Proceedings Volume 2436, (1995) https://doi.org/10.1117/12.206838

KEYWORDS: Image compression, Image quality, Medical imaging, Wavelets, Signal detection, Quality measurement, Interference (communication), Angiography, Visualization, Visual compression

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Proceedings Article | 8 July 1994 Paper

Automated motion estimation from M-mode echocardiograms

Robert Close, James Whiting, Jack Sklansky, Shinichi Tamura

Proceedings Volume 2299, (1994) https://doi.org/10.1117/12.179271

KEYWORDS: Motion estimation, Heart, Motion models, Fourier transforms, Detection and tracking algorithms, Medical imaging, Optical flow, Ultrasonography, Tissues, Light

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Proceedings Article | 1 June 1991 Paper

Observer performance in dynamic displays: effect of frame rate on visual signal detection in noisy images

James Whiting, David Honig, Edward Carterette, Neal Eigler

Proceedings Volume 1453, (1991) https://doi.org/10.1117/12.44353

KEYWORDS: Signal detection, Visualization, Human vision and color perception, Visual process modeling, Interference (communication), Image processing, Medical imaging, Detection theory, Signal processing, Signal to noise ratio

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Showing 5 of 27 publications

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