A brightness correction method for left and right two-channel images of a dual-channel camera

A brightness correction and dual-channel technology, applied in the field of image processing, can solve problems such as inconvenient batch processing and limitations of brightness correction, and achieve the effects of reducing debugging difficulty, good real-time performance, and small amount of calculation

Inactive Publication Date: 2019-11-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0007] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a brightness correction method for the left and right two-channel images of a dual-channel camera, which solves the limitations of the existing brightness correction method for performing brightness correction on dual-channel cameras after imaging, and is not convenient for batch processing The problem

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  • A brightness correction method for left and right two-channel images of a dual-channel camera
  • A brightness correction method for left and right two-channel images of a dual-channel camera
  • A brightness correction method for left and right two-channel images of a dual-channel camera

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[0052] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0053] Such as figure 1 As shown, the brightness correction method of the left and right two-channel images of the dual-channel camera includes the following steps:

[0054] S1. Obtain the area to be calculated of the left and right two-channel images of the dual-channel camera;

[0055] S2. Obtain an original brightness compensation curve with the same length as the boundary line in the area to be calculated;

[0056] S3...

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Abstract

The invention discloses a method for correcting the brightness of left and right two-channel images of a dual-channel camera, which comprises the following steps: S1, obtaining the area to be calculated of the left and right two-channel images; Original brightness compensation curve; S3, obtain the value distribution of the original brightness compensation curve; S4, extract the effective extreme value of the value distribution of the original brightness compensation curve; S5, obtain the effective brightness compensation value curve according to the effective extreme value; S6, according to the polynomial parameter The fitting method fits the effective brightness compensation value curve to obtain the fitted parameters; S7, corrects the original brightness compensation curve according to the fitted parameters, and obtains the corrected brightness compensation curve; S8, according to the corrected brightness compensation The curve performs global brightness compensation on the two-channel image to obtain a brightness-corrected image. The invention reduces the debugging difficulty of the analog circuit, has small calculation amount and good correction effect, and is convenient for batch processing.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method for correcting brightness of left and right channel images of a dual-channel camera. Background technique [0002] Image brightness correction technology is a kind of image processing technology, which can significantly improve the brightness difference problem at the image stitching position during the image stitching process, and improve the output image quality after stitching. A dual-channel camera is an image sensor. During the imaging process, in order to improve the imaging frame rate of the camera, the imaging plane is divided into left and right areas, and some are even divided into multiple areas. The image sensing information obtained by the two areas is subjected to signal conditioning through two analog channels, and then reaches the analog-to-digital converter to convert into digital signals to obtain digital images. Due to the inconsi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/10G06T5/00
CPCG06T5/00G09G5/10
Inventor 傅志中罗文城毛凌华李虹杉耿鹏飞徐进李晓峰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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