Human body behavior identification method based on point cloud data
A technology of point cloud data and recognition methods, applied in character and pattern recognition, instruments, biological neural network models, etc., can solve problems such as human behavior recognition methods without deep learning, achieve multi-processing methods and usage methods, reduce costs, Applicable effect
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[0060] The present invention will be further described below in conjunction with specific examples.
[0061] Such as figure 1 As shown, the human behavior recognition method based on point cloud data provided in this embodiment combines the point cloud data converted from the depth map and the deep neural network, including the following steps:
[0062] 1) Obtain basic data, including depth map data and camera parameters; depth map data such as Figure 2a As shown, in this embodiment, the camera internal parameter f x = f y =f / z c , f is the focal length of the camera. Since the data set used does not clearly indicate the camera focal length z c , so the focal length corresponding to each frame of depth map data passes calculated.
[0063] 2) Preprocessing the data, including smoothing the depth map, converting the depth map to point cloud, and normalizing the point cloud data.
[0064] 2.1) Use bilateral filtering to smooth the depth map data:
[0065]
[0066] ...
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