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De-interlacing method and device for monitoring video

A monitoring video and deinterlacing technology, applied in the field of image processing, can solve the problems of oversimplification, failure to meet monitoring requirements, high complexity, etc., and achieve the effect of overcoming the image edge is not smooth enough

Active Publication Date: 2010-11-24
ZHE JIANG PEARMAIN ELECTRONICS
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  • Abstract
  • Description
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Problems solved by technology

It can be seen from the above description that the method with high processing cost and power consumption due to high complexity cannot be applied in the monitoring system, and the effect of the oversimplified method cannot meet the monitoring requirements.

Method used

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  • De-interlacing method and device for monitoring video

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Embodiment 1

[0026] Embodiment 1: the present invention is further described below in conjunction with specific embodiment, but protection scope of the present invention is not limited to this:

[0027] A de-interlacing device for surveillance video, such as figure 1 As shown, it includes an input line buffer unit, a memory controller, a memory, an output line buffer unit, a motion detection unit, and an interpolation unit; the input line buffer unit is used for buffering the line data of the input interlaced image; the memory controller is used for After the line buffer unit stores one line, it is written into the memory by the memory controller, and finally used to control the alternate output of the row data of the current field and the interpolation field; the memory is used to store the interlaced image data written by the memory controller ; The output line buffer unit is used to synchronously read the interlaced image data in the memory; the motion detection unit is used to judge wh...

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Abstract

The invention relates to technical field of image treatment, in particular to a de-interlacing device and a de-interlacing method for monitoring video. In the invention, on the basis of movement detection, an intraframe row averaging method and a field copying method are combined together, the field copying method is adopted for the de-interlacing of a still image, and the intraframe row averaging method is adopted for a moving image. The method calculates the movement amount according to the characteristics of the monitoring video and judges treatment methods by adopting different threshold values according to the types of the monitoring video, so that the image quality requirements of a monitoring system can be met and the treatment complexity and power consumption of the de-interlacing device can be greatly reduced. The invention the advantage that the method calculates the movement amount according to the characteristics of the monitoring video and judges the treatment methods by adopting the different threshold values according to the types of the monitoring video, so that the image quality requirements of the monitoring system can be met and the treatment complexity and power consumption of the de-interlacing device can be greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a deinterlacing method and device for surveillance video. Background technique [0002] At present, a large number of analog interlaced cameras are used in the monitoring field, and the videos of these cameras need to be deinterlaced before being viewed on a digital display, such as a liquid crystal display. [0003] Existing methods and devices for deinterlacing are all designed for DVD movies or video in consumer electronics. There is no good method and device in the monitoring system that can meet the video processing requirements of monitoring and reduce the cost. and power consumption. [0004] The currently widely used de-interlacing methods mainly include four algorithms: field copy method, intra-frame line averaging method, modified edge adaptive method (ELA), and motion compensation filter algorithm; among them: the field copy method converts the interl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14H04N7/01H04N7/18
Inventor 王伟平
Owner ZHE JIANG PEARMAIN ELECTRONICS
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