Physical factors affecting quantitative measurements using camera-based single photon emission computed tomography (SPECT)

…, RE Coleman, FR Whitehead - IEEE Transactions on …, 1981 - ieeexplore.ieee.org
The qualitative imaging capability of single photon emission computed tomography (SPECT)
using complete angular sampling has previously been demonstrated by several …

[PDF][PDF] Lesion detection with single-photon emission computed tomography (SPECT) compared with conventional imaging

RJ Jaszczak, FR Whitehead, CB Lim… - Journal of Nuclear …, 1982 - Soc Nuclear Med
We haveevaluatedanalyticallyandexperimentallythe effectivenessof both
conventionalnuclearmedicineimagingandsingle-photonemissioncomputedto mography (SPEd) …

[PDF][PDF] Minimum detectable gray-scale differences in nuclear medicine images

FR Whitehead - Journal of Nuclear Medicine, 1978 - Soc Nuclear Med
Note specifically that the signal-to-background ra tio, S/B, is just the numerical contrast
value of the lesion in the electronic image data formed by the scanner or scintillation camera. …

Coherent optical parallel processing

…, DC Kowalski, FR Whitehead - Optical …, 1971 - spiedigitallibrary.org
Conventional stereocompilation, whether carried out manually or automatically, involves a
sequential point-by-point measurement of x parallax. This paper describes an "instant-profile" …

An improved technique for X-ray image evaluation: the two dimensional modulation transfer function

JE Gray, MP Capp, FR Whitehead - Investigative Radiology, 1974 - journals.lww.com
A technique is described which allows for the direct determination of the modulation transfer
function (MTF) simultaneously in all orientations. This approach utilizes the point spread …

Ratched Filter Restoration Of Coded-Gamma And X-Ray Imagery

JD Gaskill, FR Whitehead, JE Gray… - Application of Optical …, 1972 - spiedigitallibrary.org
Recent work has stimulated considerable interest in using radar pulse compression concepts
to improve the quality of medical X-ray and gamma ray photographs. (Refs. 1 and 2) These …

Modulation transfer function degradation and false resolution in radiographic imaging systems

…, RR Shannon, FR Whitehead - Application of Optical …, 1972 - spiedigitallibrary.org
Radiographic imaging systems appear, at the outset, to be a relatively simple class of image
forming devices. The radiologist relies on the equipment to provide him with images upon …

[BOOK][B] Quantum mechanics and the philosophy of Alfred North Whitehead

M Epperson - 2004 - books.google.com
… with quantum mechanics and Whitehead’s philosophy—… of quantum mechanics and
Whitehead’s cosmological … correlations of quantum mechanics and Whitehead’s cosmology …

Regional forest fragmentation and the nesting success of migratory birds

…, FR Thompson III, TM Donovan, DR Whitehead… - Science, 1995 - science.org
Forest fragmentation, the disruption in the continuity of forest habitat, is hypothesized to be a
major cause of population decline for some species of forest birds because fragmentation …

[PDF][PDF] Re: Optimization of the gray scale for photoscanners

FR Whitehead - Journal of Nuclear Medicine, 1979 - Soc Nuclear Med
The quantitative aspects of image gray scale are probably the most poorly understood topic
I have encountered in my career as an optical physicist. The reason for this appears to be …