用matlab实现的vibe算法前景目标捕捉_vibe_前景目标捕捉_matlab

clear,clc; % [filename,pathname] = uigetfile('*.avi','choose the video name:');%选择视频 video = VideoReader('traffic.avi'); height = video.Height; width = video.Width; %参数 NumFrames = video.NumberOfFrames; cardinality = 2;%基数 r = 15;%给定半径 n = 20; % %初始化 bg = zeros(height,width,n); for nn = 1 : n imrgb = read(video,nn); imgray = rgb2gray(imrgb); bg(:,:,nn) = imgray; end bgpad = padarray(bg,[1 1],'replicate'); %随机跟新 for f = n+1 : NumFrames imageRGB = read(video,f); image = rgb2gray(imageRGB); for i = 1:height for j = 1:width div = abs(bg(i,j,:) - double(image(i,j))); logic = div < r; bignum = sum(logic); if bignum > cardinality % 随机选择初始化背景中的一个点用新点进行替换 % rnum = rand(n,1); % maxnum = find(rnum == max(rnum)); randz = randi(n); %bg(i,j,int8(rand(1)*n)) = image(i,j); bgpad(i+1,j+1,randz) = image(i,j); % 随机改变(i,j)邻域 randy = randi([-1 1]); randx = randi([-1 1]); bgpad(i+1+randy,j+1+randx,randz) = image(i,j); % end end end randbg = randi(n); out = bgpad(2:height+1,2:width+1,randbg); figure(1),imshow(out,[]); drawnow; end finalbg = mean(bgpad(2:height+1,2:width+1),3); figure(2),imshow(finalbg,[]); drawnow;