Fig. 4

The response maps with and without target occlusion. The red dotted lines show the locations of the local maxima in the 3D response map. Notice that, NELM does not count the global maximum, so NELM less than the number of dotted lines. a The response map without occluded target, PSR = 45.61, NELM = 0. b The response map with occluded target, PSR = 5.79, NELM = 2