www.gusucode.com > 用粒子滤波算法进行跟踪的matlab代码 > gmm_utilities/gmm_remove_zeros.m
function g = gmm_remove_zeros(g) i = find(g.w > 0); g.w = g.w(i); g.x = g.x(:,i); g.P = g.P(:,:,i);