Patent
Dynamic range expanding apparatus of a video image
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TLDR
In this paper, a dynamic range expanding apparatus is proposed to realize a wide dynamic range for a video image while reducing the quantization noise, by determining the brightness transform function based on the combined results of the differential and the integral operation with respect to a brightness distribution function.Abstract:
The present invention relates to a dynamic range expanding apparatus. The dynamic range expanding apparatus realizes a wide dynamic range for a video image while reducing the quantization noise, by determining the brightness transform function based on the combined results of the differential and the integral operation with respect to a brightness distribution function. Moreover, the dynamic range expanding apparatus transforms the color difference signal by using the brightness transform ratio without losing the valance in a color tone.read more
Citations
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References
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System and method for generating a contrast overlay as a focus assist for an imaging device
TL;DR: In this article, a system for generating and displaying a contrast false color overlay as a focus assist includes a signal divider, an automatic gain control unit, an adder, a signal reducer and a signal combiner.
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Wide dynamic range camera
TL;DR: An image pickup apparatus includes image sensors (70-1, 70-2,..., 70n) for receiving an image at various exposure levels and circuitry (74) combining the results into a single image signal as discussed by the authors.