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Method for real-time preview and video-playback electronic magnification on video recorder

An electronic amplification, video recorder technology, applied in the field of hybrid DVR equipment, NVR, embedded DVR, can solve the problems of time waste, difficult to identify, blur, etc., to achieve the effect of no image attenuation, easy to identify

Inactive Publication Date: 2014-03-19
TIANJIN TIANDY DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in a monitoring system with a low resolution, the image in a certain area of ​​the screen will be blurred and difficult to identify
Sometimes only a small area in the surveillance image captures the object to be monitored. At this time, it is generally necessary to pause the video and zoom in to confirm the object in this area, resulting in a waste of time.

Method used

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  • Method for real-time preview and video-playback electronic magnification on video recorder

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Embodiment Construction

[0016] The method for real-time preview and video playback electronic amplification on the video recorder of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The following examples are only used to illustrate the present invention but not to limit the present invention.

[0017] The invention provides a method for enlarging a certain part of a preview image or video during the process of real-time preview and video playback of embedded DVR, NVR and hybrid DVR. The present invention mainly solves the following problems: in a monitoring system with low resolution, the image in a certain area of ​​the screen is relatively blurred, and the preview image or video can be partially enlarged by using electronic amplification technology for easy identification; If the required monitoring object is captured in a small area, it is necessary to zoom in and confirm the object in this area; the electronic zoom-in m...

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Abstract

The invention discloses a method for real-time preview and video-playback electronic magnification on a video recorder. A plurality of video layers are set up on the device and each video layer displays images independently and a video layer of higher priority covers a video layer of lower priority. The invention provides a convenient and rapid magnification method and image magnification is real time and any part of a previewed image or video can be magnified. When an image of a specific area of an image is fuzzy or extremely small, part of the previewed image or video can be magnified so as to be convenient to recognize. The method can be used completely in cooperation with preview and video playback without pause of the video. Moreover, the method is capable of magnifying any part of the previewed image or video and free from image attenuation.

Description

technical field [0001] The invention relates to the technical field of video monitoring, and relates to a real-time preview and video playback electronic amplification method on an embedded hard disk video recorder (including a network video recorder), which is suitable for embedded DVR, NVR, and hybrid DVR devices that support electronic amplification. Background technique [0002] Embedded DVR (hard disk video recorder) is an embedded network video device that can be connected to analog cameras, dome cameras, etc. to simulate and collect video signals for local output playback, video encoding local storage, and network real-time video transmission. Embedded NVR is a device that can connect and control the front end of the network IPC (network camera), store the video data from the IPC locally and forward it over the network, and decode and display the real-time video signal collected by the IPC on the output interface of the NVR device. equipment. Embedded hybrid DVR is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N5/76
Inventor 戴林王少龙
Owner TIANJIN TIANDY DIGITAL TECH