Grids and digital grids: the improvement of contrast and SNR in digital radiography

Zhong Min Lin; Leonard F. Plut; Virgil N. Cooper III

doi:10.1117/12.349538

28 May 1999 Grids and digital grids: the improvement of contrast and SNR in digital radiography

Zhong Min Lin, Leonard F. Plut, Virgil N. Cooper III

Proceedings Volume 3659, Medical Imaging 1999: Physics of Medical Imaging; (1999) https://doi.org/10.1117/12.349538
Event: Medical Imaging '99, 1999, San Diego, CA, United States

Abstract

Scattered radiation reduces image contrast and is probably the biggest factor contributing to poor diagnostic quality in radiography. In conventional radiography, X-ray grids are widely used to improve the diagnostic quality of radiographs by absorbing the great part of scattered radiation. In digital radiography the decoupling of the image acquisition and display allows potential image processing solutions to remove the effects of scatter. In this work, we present novel scatter and grid models that are constructed to aid in finding potential solutions for scatter reduction that do not entail the degree of tradeoff between scatter removal and dose as in conventional radiography.

Citation Download Citation

Zhong Min Lin, Leonard F. Plut, and Virgil N. Cooper III "Grids and digital grids: the improvement of contrast and SNR in digital radiography", Proc. SPIE 3659, Medical Imaging 1999: Physics of Medical Imaging, (28 May 1999); https://doi.org/10.1117/12.349538

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