Image acquisition device and shooting method

A technology of an image acquisition device and an image acquisition device, which is applied in the directions of image communication, picture signal generator, television, etc., and can solve the problems of low precision of analysis results and the like

Active Publication Date: 2019-11-22
HANGZHOU HIKVISION DIGITAL TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, in scenes with low light intensity, such as at night, intelligent analysis based on the captured video results in lower accuracy of the analysis results

Method used

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  • Image acquisition device and shooting method
  • Image acquisition device and shooting method
  • Image acquisition device and shooting method

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Embodiment Construction

[0043] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.

[0044] In a weak light environment, such as a night environment, the image signal captured by the image acquisition device has greater noise, and the grayscale image generated based on the image signal also has greater noise, so based on the grayscale image The accuracy of the analysis results obtained during intelligent analysis processing is low. In order to improve the accuracy of...

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Abstract

The invention relates to an image acquisition device and a shooting method, and belongs to the field of monitoring. The image acquisition device comprises an image sensor, a light supplementing deviceand a light filtering assembly. The image sensor is located on the light emitting side of the light filtering assembly. The image acquisition device further comprises an image signal processing unit,a coding compression unit and an analysis unit. The image sensor is used for generating and outputting a first image signal and a second image signal through multiple exposures; the light supplementdevice comprises a first light supplement device, and the first light supplement device is used for carrying out near-infrared light supplement in a stroboscopic mode. The light filtering assembly comprises a first light filter, and visible light and part of near-infrared light pass through the first light filter; the image signal processing unit is used for obtaining a grayscale image according to the first original image signal and obtaining a color image according to the second original image signal; the coding compression unit is used for performing compression coding on the color image; and the analysis unit is used for intelligently analyzing the grayscale image. The precision of the analysis result can be improved.

Description

Technical field [0001] This application relates to the field of surveillance, and in particular to an image acquisition device and a camera method. Background technique [0002] The image acquisition equipment can be installed in places such as buildings and roads. The image acquisition equipment photographs the places, not only to obtain the video stream, but also to perform intelligent analysis based on the captured video. The image capture device can store the captured video stream in the storage device, and perform intelligent analysis such as face recognition based on the captured video. [0003] However, in a scene with low illumination, such as at night, intelligent analysis based on the captured video, the accuracy of the analysis result obtained is low. Summary of the invention [0004] The embodiments of the present application provide an image acquisition device and a camera method to improve the accuracy of intelligent analysis of images. The technical solution is as f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/235H04N9/04
CPCH04N23/56H04N23/55H04N23/54H04N23/743H04N23/73H04N23/74H04N23/10
Inventor 范蒙
Owner HANGZHOU HIKVISION DIGITAL TECH
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