发明名称 |
Control of exposure of camera |
摘要 |
A device for controlling exposure of a camera is provided. An image of an area ahead of a vehicle is acquired by a camera provided in the vehicle. A traveling speed of the vehicle is acquired. An exposure area in the acquired image is set by a setting section, in which the exposure area is used for exposure control of the camera. By a calculating section, a control value for performing the exposure control is calculated based on pixel values of pixels included in the exposure area. The setting section changes a size of the exposure area based on the traveling speed, such that, when the traveling speed is a first speed, the size of the exposure area in the acquired image is smaller compared to that when the traveling speed is a second speed that is lower than the first speed. |
申请公布号 |
US9060135(B2) |
申请公布日期 |
2015.06.16 |
申请号 |
US201414160907 |
申请日期 |
2014.01.22 |
申请人 |
DENSO CORPORATION |
发明人 |
Akiba Kazuyoshi |
分类号 |
G03B7/00;H04N5/235;H04N7/18 |
主分类号 |
G03B7/00 |
代理机构 |
Harness, Dickey & Pierce, P.L.C. |
代理人 |
Harness, Dickey & Pierce, P.L.C. |
主权项 |
1. A device for controlling exposure of a camera, comprising:
means for acquiring an image of an area ahead of a vehicle by a camera provided in the vehicle; means for acquiring a traveling speed of the vehicle; means for setting an exposure area in the acquired image, the exposure area being an area used for exposure control of the camera; means for calculating a control value for performing the exposure control of the camera, based on pixel values of pixels included in the exposure area, wherein the setting means changes a size of the exposure area in the acquired image based on the traveling speed, such that, when the traveling speed is a first speed, the size of the exposure area in the acquired image is smaller compared to that when the traveling speed is a second speed that is lower than the first speed. |
地址 |
Kariya, Aichi-pref. unknown |