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Method and device for detecting black edge

A detection method, black edge technology, applied in the field of image processing, to achieve accurate detection effect

Active Publication Date: 2010-09-22
SHENZHEN IPANEL TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no effective method to detect black edges quickly and accurately.

Method used

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  • Method and device for detecting black edge
  • Method and device for detecting black edge

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0067] An embodiment of the present invention provides a black border detection method, the method includes such as figure 1 The flow chart shown:

[0068] Step 101: Determine the image frame to be detected from the video data;

[0069] In step 101, since the video is composed of images frame by frame, and video programs generally do not change in a short period of time, a specific image frame can be selected from the received video data for detection . Whe...

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Abstract

The invention discloses a method for detecting a black edge, which comprises the following steps: determining image frames needing to be detected from the received video data; taking the image data of a given region of the image frame, judging whether the given region has a black edge or not and saving the judging result into a historical record; and according to the data information saved in the history record, further confirming whether the given region has the black edge or not, and detecting and obtaining the black edge position of the image frame according to the confirming result. The embodiment of the invention also discloses a device for detecting the black edge. The technical scheme provided by the embodiment of the invention can realize the quick and accurate detection of the black edge in the image frame.

Description

technical field [0001] The present invention relates to the field of image processing, and more specifically, to a black edge detection method and device. Background technique [0002] Digital TV has a lot of content, including various movies, TV and commercials. Among them, movies and TV dramas generally use wide-screen images, and the aspect ratio is usually 16:9. However, the screen ratio of existing domestic digital TV is still 4:3. When playing 16:9 or other wide-screen content, it can only be displayed in the center, and the top and bottom are filled with black, so that the produced program will have black borders. [0003] Obviously these black borders are meaningless. Therefore, some resources will be wasted if the black border is not processed in the application processing of digital TV related content. For example, in an application scenario where the size of the displayed content is limited, if a small window of 176×144 is used to preview the video in an appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/14
Inventor 徐佳宏肖友能吴启康
Owner SHENZHEN IPANEL TECH LTD
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