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Object detection and location method and system based on depth data

A technology of depth data and target detection, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of limited accuracy of detection results, limitation of two-dimensional image characteristics, detection effect affected by illumination changes and target occlusion, etc. , to achieve the effects of viewing angle invariance, improving analysis and processing speed, fast, robust and accurate detection and positioning

Active Publication Date: 2016-07-13
河北景康维视智能科技有限公司
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Problems solved by technology

However, this technical solution is still limited by the characteristics of two-dimensional images, the detection effect is affected by illumination changes and target occlusion, and the accuracy of detection results is limited

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  • Object detection and location method and system based on depth data
  • Object detection and location method and system based on depth data
  • Object detection and location method and system based on depth data

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Embodiment Construction

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0040] Such as figure 1 As shown, the target detection and positioning method based on depth data in the embodiment of the present invention includes the following steps:

[0041] Step S1, using the depth data collected by the depth data sensor to obtain a depth map, constructing a background model of the depth map, obtaining the target foreground area from the perspective of the depth map, and performing preliminary segmentation on the target foreground area. Wherein, the depth data sensor may be a depth sensor such as a binocu...

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Abstract

The invention proposes an object detection and location method and system based on depth data. The method comprises the steps of acquiring a depth map by using depth data acquired by a depth data sensor, constructing a background model of the depth map, acquiring an object foreground region under the perspective of the depth map, and carrying out initial segmentation of the object foreground region; mapping the object foreground region after the perspective of the depth map to an overhead perspective by using a projection matrix, and segmenting the object foreground region under the overhead perspective again according to the location difference of an object in the horizontal space; extracting depth features of the foreground region, training an object detection module, and carrying out detection positioning for adhered objects by using the object detection module; and carrying out three-dimensional coordinate location correlation tracking for detection positioning results on an overhead map, mapping the detection positioning results to an original depth map coordinate, and obtaining a final object detection result. The invention can complete accurate object detection and location in a quick and robust manner under severely blocked and changing illumination conditions.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a method and system for detecting and locating objects based on depth data. Background technique [0002] With the continuous progress of society and the rapid development of economic construction, video surveillance is more and more used in various industries and aspects. The intelligent video analysis monitoring system can automatically identify different objects, find abnormal conditions in the monitoring screen, and can issue alarms and provide useful information in the fastest and best way, so as to assist security personnel to deal with crises more effectively. [0003] Target detection is a basic function of video analysis technology, which is of great significance to the realization of subsequent target tracking, target recognition and behavior analysis applications, especially in the field of real-time target event monitoring, its importance is self-evident. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/20
Inventor 杨恒张政李锦丹
Owner 河北景康维视智能科技有限公司
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