A Novel Robust Principal Component Analysis Algorithm of Nonconvex Rank Approximation

Figure 1

Eight nonconvex approximate functions of : (a); (b) Geman and Young; (c) SCAD; (d) MCP; (e) Laplace; (f) Capped ; (g) ETP; (h) Logarithm , .

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)