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Image quality improvement method and device and computer readable storage medium

An image quality and image acquisition device technology, applied in image communication, TV, color TV components and other directions, can solve the problems of time difference in exposure of two frames of images, low quality of monitoring images, etc.

Pending Publication Date: 2021-03-23
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main disadvantage of the prior art is that there is still a time difference between the exposure of the two frames of images
If the exposure time of one frame is set longer, the time difference will be more obvious, and there will be more obvious ghosting and trailing between objects, resulting in low quality of surveillance images

Method used

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  • Image quality improvement method and device and computer readable storage medium
  • Image quality improvement method and device and computer readable storage medium
  • Image quality improvement method and device and computer readable storage medium

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Embodiment Construction

[0046] The solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0047] In the following description, for purposes of illustration and not limitation, specific details such as specific system structures, interfaces, techniques, etc. are set forth in order to provide a thorough understanding of the present application.

[0048] The term "and / or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and / or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character " / " in this document generally indicates that the related objects are an "or" relationship. Also, "multiple" herein means two or more than two. In addition, the term "at least one" herein refers to any combination of any one of the plurality ...

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PUM

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Abstract

The invention discloses an image quality improvement method and device, and a computer readable storage medium. The image quality improvement method comprises the steps of collecting a first image byusing a first sensor of an image collection apparatus, and collecting a second image by using a second sensor of the image collection apparatus; calculating first exposure time based on the first image, and calculating second exposure time based on the second image; generating a sensor synchronization signal through the first exposure time and the second exposure time; and adjusting the delay timeof the first sensor and / or the second sensor based on the sensor synchronization signal to enable the first sensor and / or the second sensor to acquire images according to the delay time. According tothe scheme, by controlling exposure time synchronization of the first sensor and the second sensor, the image quality effect is improved.

Description

technical field [0001] The present application relates to the technical field of video surveillance, and in particular, to a method, an apparatus and a computer-readable storage medium for improving image quality. Background technique [0002] In order to obtain high-quality surveillance images, the current technology uses optical spectroscopic devices and multiple common dynamic range photosensitive devices to achieve wide dynamic range and ultra-dynamic range image acquisition, solving the problem of a certain time difference between the current exposure and the previous exposure. The problem is that due to camera shake or the movement of scene objects, there will be some differences between the two frames of images, which need to be corrected by special image processing techniques. [0003] The main disadvantage of the prior art is that there is still a time difference in the exposure of two frames of images. If the exposure time of one frame is set longer, the time diff...

Claims

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Application Information

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IPC IPC(8): H04N5/06H04N5/225H04N5/235H04N5/359
CPCH04N5/06H04N23/45H04N23/73H04N25/625H04N25/626H04N23/665H04N25/41H04N23/741
Inventor 卢二利况璐
Owner ZHEJIANG DAHUA TECH CO LTD