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Enhanced gesture-based human-computer interaction through a compressive sensing reduction scheme of very large and efficient depth feature descriptors

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Academic year: 2020

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Figure

Figure 2. Difference computation for the DSQP descriptor speci­ fying the differences that are taking into account
Figure 3. Computation of the DSQP histogram for one region of the depth map. It is composed by two stages: a non-uniform depth  difference quantification using 3 bits per difference value, and a multiple histogram computation
Figure 5. Example of a CS process in which x is the input and  sparse vector, <j> is the transform matrix and y the output vector
Table 1 shows the confusion matrix for all the signs of  the database using the DSQP-CS-SVM algorithm

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