Target analysis method and device based on intensity image and range image

A technology of depth image and intensity image, which is applied in the field of video target analysis, can solve problems such as difficulty in target analysis, inaccurate methods, and influence on the analysis results of edge features of target components.

Inactive Publication Date: 2011-03-30
SAMSUNG ELECTRONICS CO LTD +1
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Problems solved by technology

The background of color images is generally very chaotic, so foreground segmentation based on color images is very computationally expensive and imprecise
Although a foreground segmentation method based on depth images has also been proposed, this method is not accurate
[0005] Once the foreground segmentation is inaccurate, it will make the subseq...

Method used

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  • Target analysis method and device based on intensity image and range image
  • Target analysis method and device based on intensity image and range image
  • Target analysis method and device based on intensity image and range image

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Embodiment Construction

[0025] Hereinafter, an object analysis apparatus and method according to the present invention will be described in detail with reference to the accompanying drawings. The object analysis device and method of the present invention can be used to analyze the video object of interest from the video stream, so as to obtain information about the various parts of the video object.

[0026] Usually, for a video target to be analyzed, it can be roughly divided into two parts: one part is the body parts with relatively fixed shape and proportion, such as human head and torso, the base of a specific device, etc.; the other part is movable and Moving parts with relatively indeterminate shapes, such as human limbs, movable arms of specific devices, etc. In the present invention, the classifier / detector trained by the sample statistical learning method can be used for detection of relatively simple main body parts, while the detection of more complex moving parts can be performed after re...

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Abstract

The invention provides a target analysis method and device based on intensity image and range image. The device comprises a main part detecting unit, a foreground segmentation unit and a moving part detecting unit, wherein the main part detecting unit detects the main part of a target from the intensity image of the target; the foreground segmentation unit calculates the intensity threshold on the basis of the intensity value of the detected main part, uses the intensity threshold to convert the intensity image to a binary image and uses the binary image to mask the range image to obtain a mask range image; and the moving part detecting unit detects the moving part of the target from the mask range image.

Description

technical field [0001] The invention relates to a video object analysis method and equipment. More specifically, the present invention relates to a target analysis method and device based on intensity images and depth images, by which each component of a video target of interest can be accurately detected from a video stream to obtain target action information. Background technique [0002] With the wide application of 3D animation, games, human-computer interaction interface, etc., in the field of computer vision and pattern recognition, video object analysis technology is being extensively studied. In order to perform animation simulation, it is first necessary to detect the various parts of the target from the video in order to obtain the target's motion information [0003] To detect parts of objects, bottom-up methods and up-bottom methods are usually used. In the former method, the target part is firstly detected by its features, such as detection by skin color, bar...

Claims

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Application Information

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IPC IPC(8): G06T7/00
CPCG06T7/60G06T2207/10028G06T7/11G06T7/12G06T7/149G06T7/194G06T7/35G06T7/97
Inventor 陈茂林楚汝峰
Owner SAMSUNG ELECTRONICS CO LTD
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