2.5D Facial Personality Prediction Based on Deep Learning

Figure 3

Soft-thresholding curves. The soft threshold function sets the input data with an absolute value lower than this threshold to zero, and the input data with absolute value greater than this threshold is also shrunk towards zero, and the relationship between input and output is shown in (a); the partial derivative of output y of the soft threshold function with respect to input x in (b).

(a)

(b)