Point cloud-oriented efficient binary neural network quantization method and device
A technology of binarized neural network and neural network, which is applied in target detection device, efficient binarized neural network quantization field, can solve the problem of restricting the application prospect of point cloud neural network, limited computing power and storage capacity of in-vehicle computing equipment, and limiting point cloud. application and other issues, to meet the requirements of real-time detection and positioning, perform well, and reduce quantization loss.
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[0031] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] Related studies have shown that the data structure of point clouds is fundamentally different from that of 2D images. The pixels of a 2D image are arranged in a regular matrix, which enables a convolutional neural network (CNN) to encode local features between adjacent pixels using convolution kernels. In the data structure of point clouds, the order of each point does not contain any information in terms of spatial similarity, so most binarization methods for solving 2D vision tasks cannot be simply transferred to point clouds.
[0033] On the other hand, the existing point cloud feature extractors usually have two common designs: first, the CNN kernel is replaced by a multi-layer perceptron (or fully connected layer), and the features are processed in the form of "points"; secondly, , using pooling layers to...
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