Method and system of real time detecting and continuous tracing human face in video frequency sequence

A real-time detection and video sequence technology, applied in the field of face detection and tracking, can solve the problems of poor real-time performance and long calculation time, and achieve high detection rate, fast detection speed and high efficiency

Active Publication Date: 2008-01-09
BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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Problems solved by technology

[0007] The present invention solves the technical problems of the method for real-time detection and continuous tracking of human faces in the video sequences collected in the prior art and the system's relatively long calculation time and poor real-time performance. The face detection method of the classifier realizes the real-time detection of the upright face of the front, and combines the face tracking method based on Mean shift and histogram features to realize the real-time detection and tracking of the face. The method of the present invention has the functions of detection and tracking The advantages of rapidity and strong real-time performance

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  • Method and system of real time detecting and continuous tracing human face in video frequency sequence
  • Method and system of real time detecting and continuous tracing human face in video frequency sequence

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Embodiment Construction

[0055] The present invention proposes a method for real-time detection and continuous tracking of faces in video sequences, combined with the content shown in Figure 1:

[0056] At first, input video image, in this step, input video image by camera in real time;

[0057] Then, the real-time face detection algorithm is used to detect the face of the input video image;

[0058] After receiving the real-time input video image, search each frame of image to detect the existence of human face; as shown in Figure 2a, the result of human face detection is given, where the square box represents the detected human face; in the detection In the process, if one or more faces are detected in a frame of images, these faces will be tracked in the next two frames of images, and the faces tracked in the next two frames of images will be detected and verified, and the previous Whether the detection result is a real face;

[0059] Only when a human face is detected in a certain position for t...

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Abstract

This invention puts forward a method and a system for real time testing and continuous tracking of man-face in a video sequence including the following steps: carrying out a test algorithm to a man-face input video image, then applying a rough and fine two stages of test algorithm to verify the tested face, applying an object following algorithm to follow the verified one and verifying it by verifying the followed regions, which realizes a real time test to a positive and vertical man-face by a test method based on AdaBoost statistic hierarchical sorter and Mean shift and a square pattern property.

Description

technical field [0001] The invention relates to the field of human face detection and tracking, in particular to a method and system for real-time detection and continuous tracking of human faces in video sequences. Background technique [0002] Human face is one of the most convenient ways of human-computer interaction in computer vision system. Face detection is to determine the position, size and other information of all faces in an image or image sequence, while face tracking is to continuously track one or more detected faces in a video sequence. Face detection and tracking technology is not only a necessary prerequisite for face recognition, expression recognition, face synthesis and other technologies, but also has a wide range of application values ​​in intelligent human-computer interaction, video conferencing, intelligent monitoring, video retrieval and other fields. [0003] The importance of face detection and the complexity of face patterns have made face detec...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/32
Inventor 黄英王浩俞青
Owner BEIJING VIMICRO ARTIFICIAL INTELLIGENCE CHIP TECH CO LTD
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