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Object tracking method and system based on detection

A technology for detecting targets and target tracking, which is applied in the field of detection-based target tracking methods and systems, which can solve problems such as background interference, complex calculations, and unsuitability for hardware implementation, and achieve the effect of reducing the impact of interfering targets and simple calculations

Inactive Publication Date: 2011-10-12
VIMICRO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the disadvantages of being easily disturbed by the background and unable to track new faces. Among them, the methods with less background interference, such as methods based on particle filter and mean shift filter, are more complicated in operation and are not suitable for hardware implementation.

Method used

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  • Object tracking method and system based on detection
  • Object tracking method and system based on detection
  • Object tracking method and system based on detection

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Embodiment Construction

[0033] In the embodiment of the present invention, the tracking queue can be preset, and for the target in the tracking queue, in order to identify whether it is an interference target (candidate target) or a real target, the number of presentations of the target can be recorded, when the number of presentations meets the preset condition , the target can be considered as a real target, otherwise it is a candidate target; in order to avoid the situation that some targets are not tracked because they are not detected temporarily, the number of missed detections of the target can be recorded, and when the number of missed detections meets the preset When the conditions are set, the object can be considered to disappear, otherwise it is an object that has not been tracked temporarily. After that, target detection is performed from the current video collected by the video capture device. After one or more targets are detected, the detected target is matched with the target in the t...

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Abstract

The invention discloses a target tracking method and system based on detection. The method comprises the following steps: a tracking queue is set; target detection is conducted in the current video collected from a video collecting device; one or more targets are detected; the targets are matched with the targets in the tracking queue; based on the matching results, the targets in the tracking queue and the times of presentation are updated and / or the times of missing detection of targets in the tracking queue are updated; the missed targets in the tracking queue are identified based on the times of missing detection of targets, and the true targets in the tracking queue are identified based on the times of presentation of targets. The technical proposal provided by the invention can reduce background interference and facilitate hardware implementation.

Description

technical field [0001] The invention relates to target matching and tracking technology, in particular to a detection-based target tracking method and system. Background technique [0002] At present, target (such as face, human body, vehicle, etc.) detection and tracking technology is one of the most important technologies in video processing, and it is the premise and Base. Taking faces as an example, in video-based applications such as face-based automatic exposure, automatic focus, automatic backlight compensation, and automatic white balance, it is not only necessary to obtain the number, position, and size of faces in a certain frame, but also to obtain Obtaining the corresponding relationship of the same face in different frames requires continuous face tracking on the currently obtained face. However, the face tracking algorithms in the prior art generally use manual calibration or automatic face detection, and then find the area closest to the tracking area of ​​t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 邓亚峰黄英王俊艳
Owner VIMICRO CORP