Method and apparatus to extend the effective dynamic range...

Details Method and apparatus to extend the effective dynamic range... Method and apparatus to extend the effective dynamic range...

2005-09-13

2005-09-13

Ho, Tuan (Department: 2612)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S294000, C348S340000, C348S362000

Reexamination Certificate

active

06943831

ABSTRACT:
An image capture system includes a sparsely sampled extended dynamic range image sensing device having fast photosites interspersed with slow photosites for producing a sparsely sampled high resolution digital image having fast pixel values produced by the fast photosites and slow pixel values produced by the slow photosites. A processor employs the slow pixel values to expand the dynamic range of the fast pixel values in the sparsely sample high resolution digital image to form a full resolution digital image having an extended dynamic range. A color encoder reduces the dynamic range of the full resolution digital image to fit within the dynamic range of a storage color space having a dynamic range less than that of the full resolution digital image to form a limited dynamic range digital image represented in the storage color space.

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