Hand motion detecting method, hand motion detecting device and human-computer interaction system
A hand movement and hand technology, applied in the field of human-computer interaction, can solve problems such as high complexity and poor anti-interference performance
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Embodiment 1
[0041] figure 1 The implementation flow of the hand motion detection method provided by Embodiment 1 of the present invention is shown, and the process of the method is described in detail as follows:
[0042] In step S101, an image frame is collected, a target area including a human face in the image frame is obtained, and the target area is divided into a plurality of sub-areas.
[0043] In this embodiment, the human-computer interaction system (not limited to other home appliances such as televisions) collects an image sequence through a built-in or external camera, and the image sequence includes multiple frames of images. A preset face detection algorithm is used to detect whether there is an image frame containing a human face in the collected image sequence, and if there is, a target area containing a human face in the image frame is acquired.
[0044] In this embodiment, in order to reduce the external interference to the hand motion detection and improve the anti-int...
Embodiment 2
[0071] figure 2 The implementation flow of the hand motion detection method provided by Embodiment 2 of the present invention is shown, and the process of the method is described in detail as follows:
[0072] In step S201, the image frame is collected, and whether there is a human face in the image frame collected by Adaboost or haar face detection algorithm based on the rectangular feature;
[0073] In step S202, when there is a human face in the captured image frame, and the human face is stationary within a preset time, a block containing the human face and the left and right shoulders is divided with the position of the human face as the center a rectangular target area, and divide the target area into a plurality of sub-areas.
[0074] In this embodiment, the system collects an image sequence through a built-in or external camera, and the image sequence includes multiple frames of images. Detect whether there is a human face in the collected image frame through the pr...
Embodiment 3
[0077] image 3 The implementation flow of the hand motion detection method provided by Embodiment 3 of the present invention is shown, and the process of the method is described in detail as follows:
[0078] In step S301, an image frame is collected, a target area including a human face in the image frame is obtained, and the target area is divided into a plurality of sub-areas.
[0079] This step is the same as step S101 in the first embodiment, and will not be repeated here.
[0080] In step S302, the image collected is processed by the three-frame difference method;
[0081] In step S303, after binarizing the processed image, a clear image is obtained through denoising processing;
[0082] In this embodiment, since there are many small areas or small gaps in the binarized image, it is necessary to perform corresponding denoising processing to obtain a clear image. Wherein, the denoising process includes but is not limited to removing isolated small areas by using erosi...
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