A human activity recognition method based on sparse representation and Softmax classification
A technology of human activity and recognition method, applied in the field of medical human activity detection and recognition, can solve problems such as large time complexity, large noise signal, large time delay, etc., and achieve the effects of improving classification performance, improving complexity and improving efficiency
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[0053]The technical solutions provided by the present invention will be further described below with reference to the accompanying drawings.
[0054] Sparse representation based on high-dimensional data In computer vision and machine learning, the best classification systems often choose sparse representation as their key module. Methods such as linear projection and random forest based on sparse representation can pass the natural image itself as a sparse signal, and its optimization model is established from the perspective of signal reconstruction to obtain a good approximation to the original signal. Softmax regression learning obtains the estimation function of rank classification by learning the feature vector, and uses its maximum probability to classify the signature feature. To this end, the present invention provides a human activity recognition method based on sparse representation and Softmax classification.
[0055] see Figure 1-5 , the present invention provid...
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