24 June 1994 Nonlinear filtering for video dynamic range compression
Author Affiliations +
Abstract
The dynamic range of modern image sensors can exceed the range of a video monitor by an order of magnitude or more. This means that fast and intelligent range compression and image enhancement must be interposed between the sensor and display for effective visual communication. Digital hardware can enhance an image in real time, but the common method for range compression on digital hardware, linear filtering, can severely distort the image. Nonlinear methods must be used to prevent this distortion. In this paper, dynamic range compression of video images, at video rates, is demonstrated. An analog ASIC performs all of the necessary nonlinear image filtering at low power.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew J. Moore, "Nonlinear filtering for video dynamic range compression", Proc. SPIE 2239, Visual Information Processing III, (24 June 1994); doi: 10.1117/12.179278; https://doi.org/10.1117/12.179278
PROCEEDINGS
12 PAGES


SHARE
Back to Top