www.gusucode.com > 个用于图像标定的算法matlab源码程序 > code16/lk20_common/sd_update_weight.m
function sd_delta_p = sd_update_weight(VI_dW_dp, error_img, weight, N_p, w) % SD_UPDATE_WEIGHT - Compute weighted steepest descent parameter updates % SD_DELTA_P = SD_UPDATE_WEIGHT(VI_DW_DP, ERROR_IMG, WEIGHT, N_P, W) % Iain Matthews, Ralph Gross, % Carnegie Mellon University, Pittsburgh if nargin<5 error('Not enough input arguments'); end sd_delta_p = zeros(N_p, 1); for p=1:N_p h1 = VI_dW_dp(:,((p-1)*w)+1:((p-1)*w)+w); sd_delta_p(p) = sum(sum(weight.*(h1 .* error_img))); end