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Method and apparatus for scanning connected region in combined image

A technology that connects areas and scans images. It is used in image analysis, image data processing, instruments, etc. It can solve problems such as being unsuitable for hardware environments, and achieve the effect of reducing storage space.

Inactive Publication Date: 2009-08-05
VIMICRO CORP
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a method and device for scanning and merging connected regions in images, which only needs one scan to complete the merging, and does not need to allocate too much temporary data cache, and solves the problem that the existing technology is not suitable for hardware Technical issues running in the environment

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  • Method and apparatus for scanning connected region in combined image
  • Method and apparatus for scanning connected region in combined image
  • Method and apparatus for scanning connected region in combined image

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below with reference to the accompanying drawings.

[0039] The invention realizes a high-efficiency binarized image connected domain merging method that can be run in hardware. This method is improved on the basis of the ordinary two-scan merging algorithm. It is no longer based on pixels for merging, but based on the connected segments in the row to perform merging operations, and it does not need to store the entire image in the cache. , which saves space, and the most important thing is that only one scan is needed to merge the connected regions, so the operating efficiency of the algorithm in the hardware can be greatly improved.

[0040] (1) First of all, the common two-scanning-based merging algorithm is introduced as follows:

[0041] Merging algorithm based on quadratic scanning is a scanning ...

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Abstract

The invention provides a method for communicating region in a scan unite image and a device thereof. The method includes steps as follows: firstly, scanning present line of the image for obtaining a communication segment of the present line; secondly, taking out a communication segment as the present segment for processing communication analysis; thirdly, judging upper line whether having a communication segment communicated with the present segment, if yes, executing fifth step, if no, executing fourth step; fourthly, distributing target sequence number for the present segment, and storing the position information of the present segment to a structure body corresponding to the target sequence number; fifthly, confirming a first communication segment, uniting the present segment and each non-first communication segment into the first communication segment, and releasing the structure body stored the non-first communication segment. The method can complete unite only needing once scanning, needs not be distributed overfull temporary data cache which can solve technique problem that the prior technique is not suitable for operating in a hardware environment.

Description

technical field [0001] The invention relates to the field of intelligent video surveillance, in particular to a method and device for scanning connected areas in combined images in the hardwareization of an intelligent video surveillance system. Background technique [0002] The core content of the intelligent video surveillance system is to detect, track and identify moving objects in the scene. The purpose of detecting the moving target is to find the moving target from the video sequence and extract the shape of the moving target. The detection of moving objects is the first step in intelligent video surveillance, and it is also the basis for subsequent tracking and recognition applications. The speed and accuracy of detection are very important to the entire intelligent video surveillance. In the process of system hardware, the moving object detection algorithm must also take into account the characteristics of hardware implementation, make full use of the parallel adva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/20
Inventor 谢东海
Owner VIMICRO CORP
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