Camera exposure optimization techniques that take camera and scene motion into account

Abstract

Quantities of motion between images of an electronic camera are calculated and used to adjust the exposure time and one or more other exposure parameters used to capture an image in order to improve the quality of the image. Motion blur caused by movement of the camera or by movement of an object within the scene being photographed is reduced by selecting appropriate exposure parameters. Further, when there is little or no motion detected, the exposure parameters may be selected to improve the depth of field and reduce the noise in the captured image.

Description

Background technique [0001] This invention relates to automatic exposure control for digital cameras and other electronic video capture devices, and more particularly to data in which optimal exposure parameters are calculated and utilized for capturing a still image or a continuous series of images. All patents, patent applications, articles, other publications, and matters cited herein are hereby incorporated by reference in their entirety for all purposes. [0002] The electronic camera images the scene onto a two-dimensional sensor such as a charge-coupled device (CCD), complementary metal-on-silicon (CMOS) device, or other type of light sensor. These devices consist of a large number of photodetectors (typically 2, 3, 4 million or more) arranged on a small two-dimensional surface, each of which generates light or other optical radiation ( Includes a signal proportional to the intensity of the infrared and ultraviolet regions of the spectrum adjacent to the wavelengths of...

AI Technical Summary

Problems solved by technology

The automatic exposure processing of existing cameras does not take into account the motion of the camera or the motion of the scene when calculating the exposure parameters used to capture an image of the scene

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