Method for automatic exposure control within a video capture...

Details Method for automatic exposure control within a video capture... Method for automatic exposure control within a video capture...

2011-07-12

2011-07-12

Villecco, John M (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S234000, C348S362000

Reexamination Certificate

active

07978231

ABSTRACT:
On embodiment of the present invention sets forth a technique for automatically computing exposure parameters for a digital video camera (DVC) system. The exposure parameters include exposure gain, analog gain, and digital gain. Each frame is analyzed with respect to an image luma value. Exposure gain and analog gain are adjusted to reduce differences between a target image luma value and measured image luma values over sequential frames. Digital gain is adjusted with respect to each frame to reduce visually abrupt changes in sequentially captured video frames.

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