An exposure controller for in-vehicle cameras

Title:

An exposure controller for in-vehicle cameras

Document Type and Number:

Japanese Patent JP5937832

Kind Code:

B2

Abstract:

An exposure controller for an on-vehicle camera mounted on a vehicle is capable of performing exposure control such that a predetermined subject such as a lane marker can be imaged with a constant contrast regardless of variation of peripheral brightness and directions of the variation. An exposure controller images information imaged by an imaging part based on a second exposure property having linearity, the second exposure property being obtained by converting a first exposure property having non-linearity, calculates a target density value with which pixels in a window set in the image are to be imaged based on brightness values corresponding to density values of the pixels in the window, sets a third exposure property for obtaining the calculated target density value, and performs imaging with the set third exposure property.

Inventors:

Isao Furusawa
Teruki Takahashi

Application Number:

JP2012016279A

Publication Date:

June 22, 2016

Filing Date:

January 30, 2012

Export Citation:

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