need the best algorithm for shape features extraction with complex shaoe

Hi every body ....if i have complex shape which i Interested in Details of shape..which algorithm can help me to extract the features of this image.... I found the (phog_algorithm)can this algorithm help me????pls help me

this is my image...

i want to extract the shape features of it to make it Ultimate from others cars..

the phog alograthms have this code

function [ features ] = phog( images, bins, L, mode )

features = [];

for group=1:length(images)
        fprintf('Analyzing group %d...\n', group);
        for image=1:length(images{group})
                img = imresize(images{group}{image}, [400 400]);
                f = anna_phog(img, bins, 180, L, [1 size(img,1), 1, size(img,2)]', mode);
                features(image, :, group) = f;
        end
end

end

plz help me

Answer 1

[Image Analyst]

Never heard of it. Why don't you post your image and tell us what shapes you want to distinguish from each other? in the meantime, see this: http://en.wikipedia.org/wiki/Morphometrics It's always best to attach an image when asking for image processing advice.

[EDIT] I can't make out anything in that image. Just looks like a mess to me. Good luck though.

Answer 2

[primrose khaleed]

if you give you this image how can you help me

Answer 3

[primrose khaleed]

Answer 4

[primrose khaleed]

image anlyst plz i need your help

Answer 5

[primrose khaleed]

i need algorithm for exatact the features of edge.what about PCA algorithm??can i used for shape features extractions???.which algorithm can help me ..?...plz answer me

[Image Analyst]

What features will do you any good? About all I know for the feature of an edge is the length of the edge. Do you want that?

[primrose khaleed]

thanks very much...i want any features about edge or shapeWhat do you advise us.... I want to experience

Answer 6

[primrose khaleed]

hi image analyst...after i read about shape features i understood some thing..: to detections shape we need to detection the global and local features...but i get Thumbs in some algorithm to used..i get PCA && SIFT && hog..what the defferent between them? which image can extract the featuers when have have similarty images?? i hope my questions clear for you...plz help me

Answer 7

[primrose khaleed]

Hi image analyst,,,why you dont answer me??plz i need ypur help

[Image Analyst]

I did answer. See above. Basically I don't know how to detect an infinite variety of bombs or whatever under the very complicated underside of vehicles which varies tremendously from one vehicle to another. Since you took on the project I presume that you have some plan or algorithm in mind. I certainly don't have anything that I can do for you in my 5 minute time limit. You're not going to do it in 5 minutes are you? I can't either. You're probably working on it for your Ph.D. so it's way too complicated for me to do for you in 5 minutes.

[primrose khaleed]

i need from you to help just to recogintion the car by using the image of under of vehicals..not to detected bomb..thank you for your answer

[Image Analyst]

I don't recognize anything in that picture except a drive shaft and tires. And I don't have any code for segmenting out drive shafts or tires. Sorry.

[primrose khaleed]

thanks for your help