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16 September 2005 Grayscale resolution of LCD displays: 8 bits vs. 11 bits
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Abstract
This paper presents a few results of an initial study to compare softcopy displays with 8 bits contrast resolution with those of 11 bits contrast resolution. Particular interest was paid to failure to detect subtle objects and appearance of artifacts like false contours as a result of improper quantization. Objects like squares, discs and Gaussian nodules were simulated at different amplitudes on uniform backgrounds. Another approach was to place simple objects like disks and Gaussian objects into a clinical image. The study concluded that indeed subtle objects can be missed and artifacts such as false contours can occur, dependent on signal amplitude and noise. A comprehensive observer study is under development to confirm and refine these results.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hans Roehrig, Jiahua Fan, Elizabeth A. Krupinski, and Kunal Gandhi "Grayscale resolution of LCD displays: 8 bits vs. 11 bits", Proc. SPIE 5923, Penetrating Radiation Systems and Applications VII, 59230M (16 September 2005); https://doi.org/10.1117/12.624925
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