How can I detect objects and distinguish them from each other?

3 次查看（过去 30 天）
roudabe
roudabe 2013-12-14
编辑： roudabe 2013-12-22
They can be in different colors, or maybe it's better to distinguish them bye edge detection, or some thing else which I need you help me to use a suitable method. Purpose is to detect objects and find their movement if exist and estimate their direction and velocity. Thank you

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2013-12-14
Please try out my image segmentation demos and color segmentation demos: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
To do object tracking across different images or video frames, you can use the Computer Vision System Toolbox
  4 个评论
显示 2更早的评论
roudabe
roudabe 2013-12-21
编辑：roudabe 2013-12-22
Hi, I used regionprops with properties : PixelList to have a set of region pixels, but now I need the pixel list of region for every frame!!! What should I do in for loop?
xyloObj = VideoReader('vid.avi');
nFrames = xyloObj.NumberOfFrames;
vidHeight = xyloObj.Height;
vidWidth = xyloObj.Width;
mov(1:nFrames) = ...
struct('cdata', zeros(vidHeight, vidWidth, 3, 'uint8'),...
'colormap', []);
for k = 1 : nFrames
mov(k).cdata = read(xyloObj, k);
s = regionprops(mov(k).cdata,'PixelList');
region=s.PixelList;
imshow(mov(k).cdata)
end
Image Analyst
Image Analyst 2013-12-21
Read this: http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup
s is structure array, you need to index it, like s(k).PixelList. A single frame might have 2 or 10 different regions so you need an index. But then after you (attempt to) get it, you aren't doing anything with it.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Computer Vision with Simulink 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by