An image acquisition device and camera method

An image acquisition device, image acquisition equipment technology, applied in image communication, image signal generator, television, etc., can solve the problem of low accuracy of analysis results

Active Publication Date: 2021-02-26
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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  • An image acquisition device and camera method
  • An image acquisition device and camera method
  • An image acquisition device and camera method

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Embodiment Construction

[0043] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0044] In an environment with weak light, such as at night, the noise of the image signal captured by the image acquisition device is relatively large, and the noise in the grayscale image generated based on the image signal is also relatively large, so based on the grayscale image The accuracy of the analysis results obtained when performing intelligent analysis processing is low. In o...

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Abstract

The application relates to an image acquisition device and a camera method, which belong to the monitoring field. The image acquisition device includes: an image sensor, a light fill device and a filter assembly, and the image sensor is located on the light output side of the filter assembly; it also includes an image signal processing unit, a code compression unit and an analysis unit; the image sensor is used to pass multiple exposures Generate and output the first image signal and the second image signal; the supplementary light device includes a first supplementary light device, and the first supplementary light device is used to perform near-infrared supplementary light in a stroboscopic manner; the filter assembly includes a first filter, The first optical filter allows visible light and part of near-infrared light to pass through; the image signal processing unit is used to obtain a grayscale image according to the first original image signal, and obtain a color image according to the second original image signal; the encoding and compression unit is used to perform color image processing Compression coding; the analysis unit is used for intelligent analysis of grayscale images. The present application can improve the precision of analysis results.

Description

technical field [0001] The present application relates to the monitoring field, in particular to an image acquisition device and an imaging method. Background technique [0002] The image acquisition equipment can be installed in places such as buildings and roads, and the image acquisition equipment can capture the place, not only get the video code stream, but also conduct intelligent analysis based on the captured video. The image acquisition device can store the captured video code stream in the storage device, and perform intelligent analysis such as face recognition based on the captured video. [0003] However, in scenes with low light intensity, such as at night, the accuracy of the analysis results obtained by intelligent analysis based on the captured video is low. Contents of the invention [0004] Embodiments of the present application provide an image acquisition device and a camera method, so as to improve the precision of intelligent image analysis. Descri...

Claims

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Application Information

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Patent Type & Authority Patents(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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