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Method for enhancing light sensitivities of images on basis of multiple cameras

A multi-camera technology, applied to signal generators with multiple pick-up devices, picture signal generators, color signal processing circuits, etc., can solve the problem of reducing user experience, good color video, and inability to provide color, etc. problems, to achieve the effect of improving user experience and enhancing image sensitivity

Inactive Publication Date: 2014-01-29
北京博雅慧视技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most low-light cameras can only shoot black-and-white or infrared monochrome images, and cannot provide color videos with good color, which greatly reduces the user experience

Method used

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  • Method for enhancing light sensitivities of images on basis of multiple cameras
  • Method for enhancing light sensitivities of images on basis of multiple cameras

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Experimental program
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Embodiment

[0021] The present invention uses a high-sensitivity black-and-white image sensor, combined with a traditional color image sensor, and sets exposure parameters respectively to obtain an image suitable for low-light conditions and an image under strong-light conditions, and then synthesize images with a high dynamic range.

[0022] Implementation steps of the present invention are as follows:

[0023] The first step is to design a multi-camera acquisition device, including a multi-camera image acquisition unit, a real-time computing unit and an image storage unit;

[0024] The second step is to conduct initial data collection and calculate camera parameters, including the relative angle of each camera, the camera range of each camera, and the exposure parameters of each camera, before the official implementation;

[0025] The third step is to start collecting each frame of image with each camera, and obtain multiple original images at the same time;

[0026] The fourth step is...

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Abstract

The invention discloses a method for enhancing light sensitivities of images on the basis of multiple cameras. The method includes designing an acquisition device with the multiple cameras; acquiring initial images by the aid of the device designed in the last step, calibrating the various cameras and computing parameters of the various cameras; enabling each camera to start to acquire each image and simultaneously acquiring a plurality of original images; initially transforming the original images acquired by the various cameras by the aid of the parameters acquired in the second step, outputting the transformed images to be subjected to follow-up processing in a fifth step; computing illuminance and chromaticity of each pixel in each image according to the different parameters of the various cameras, compositing the pixels to form single images with high light sensitivities and outputting the single images with the high light sensitivities. The method has the advantages that pictures are respectively acquired by the various cameras in visible light and infrared wavelengths and are composited, so that the light sensitivities of the images can be enhanced, color video with excellent chromaticity can be provided even under the condition of poor light, and the user experience can be greatly improved.

Description

technical field [0001] The invention relates to an image sensitivity enhancement method based on multiple cameras. Background technique [0002] Under poor lighting conditions, low-light cameras are favored by more and more users due to their ability to perform normal monitoring throughout the day, and they are like a pair of "wisdom eyes" in the dark, allowing monitoring personnel to see the monitoring area situation within. However, most low-light cameras can only shoot black-and-white or infrared monochrome images, and cannot provide color video with good color, which greatly reduces the user experience. Contents of the invention [0003] The purpose of the present invention is to provide a method for enhancing image sensitivity by using multiple cameras. [0004] The technical scheme provided by the invention is as follows: [0005] A method for enhancing image sensitivity based on multiple cameras, comprising the following steps (flow process as follows figure 1 s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/09H04N9/64H04N23/13
Inventor 李革袁磊宋磊
Owner 北京博雅慧视技术有限公司
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