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Image brightness adjusting method, device therefor, and stereo camera

A technology of stereo camera and brightness adjustment, applied in stereo systems, image communication, TV, etc., can solve the problems of different initial settings of cameras and considerable differences in image brightness.

Active Publication Date: 2015-01-14
DAEGU GYEONGBUK INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the structure of the existing stereo camera has different characteristics from that of a single camera, that is, the two cameras are used as cameras in different modes, or the initial settings of the two cameras may be different, and images are acquired at different positions etc., therefore, there is a problem that the difference in brightness of the images acquired separately by the two cameras may become quite large

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  • Image brightness adjusting method, device therefor, and stereo camera
  • Image brightness adjusting method, device therefor, and stereo camera
  • Image brightness adjusting method, device therefor, and stereo camera

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Embodiment Construction

[0022] An image brightness adjustment device according to an embodiment of the present invention is a device capable of reducing brightness errors between left and right images captured by a stereo camera.

[0023] Such an image brightness adjustment device according to an embodiment of the present invention reduces the brightness error of the left image and the right image by separately controlling the increase or decrease of the exposure time for capturing the left image and the right image.

[0024] In addition, in order to reduce the brightness error between the left image and the right image, the image brightness adjustment device of an embodiment of the present invention needs to determine whether to extend the exposure time for shooting the left image and the exposure time for shooting the right image. It still needs to be shortened, and according to the situation, it is also necessary to decide how long or short it is to be adjusted.

[0025] Like this, in order to det...

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Abstract

The present invention relates to an image brightness adjusting technique and, more specifically, to an image brightness adjusting method for reducing a brightness error between two images photographed through a stereo camera, a device therefor, and the stereo camera capable of obtaining two images having a small brightness error.

Description

technical field [0001] The invention relates to an image brightness adjustment technology. Background technique [0002] In recent years, with the development and popularization of video cameras, they have been used not only in digital video cameras but also in PC webcams (webcams), security, vehicle black boxes, and smart phones in various forms. Currently, most cameras on the market use a single camera. An automatic brightness adjustment method capable of photographing in such a manner as to match dark and bright areas is used in a single camera of the conventional method. [0003] In recent years, stereo cameras have been researched and used in various fields such as security, automobiles, robots, and 3D measurement. [0004] However, the structure of the existing stereo camera has different characteristics from that of a single camera, that is, the two cameras are used as cameras in different modes, or the initial settings of the two cameras may be different, and image...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/02H04N23/76
CPCH04N13/0025H04N13/0239H04N13/0296H04N13/246H04N13/296H04N13/239H04N13/133H04N23/76H04N23/71
Inventor 金贤佑权淳李壮宇河在昱
Owner DAEGU GYEONGBUK INST OF SCI & TECH