HOW to combine between SURF features and HOG features

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AHMED ALMARZOOQI
AHMED ALMARZOOQI on 14 Sep 2015
Answered: SATISH KUMAR on 19 Dec 2019
im doing my experiment using matlab i want code thats combine between SURF features and HOG features
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Answers (3)

Dima Lisin
Dima Lisin on 4 Dec 2015
Hi Ahmed,
It would help if you could tell us more about what you are trying to do.
The extractHOGFeatures function in the Computer Vision System Toolbox has two different modes. The most common mode is to compute a single HOG descriptor for the entire image. The second mode is to compute multiple HOG descriptors centered around a given set of image points, similar to what extractFeatures does for SURF or FREAK descriptors.
As to how to combine SURF and HOG, that depends on what it is you are trying to do. If you are using the bag-of-features approach for image classification, you may want to concatenate the bag-of-features histogram with a HOG vector computed over the entire image. If you want to match features, you can try concatenating individual SURF descriptors with HOG descriptors. Or you can extract SURF descriptors from one set of points, and HOG descriptors from another.
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sonia carole
sonia carole on 4 Jan 2016
Thanks Dima Lisin for your answer I want to extract HOG features for image classification using bag-of features. How can make the concatenation between the queries HOG feature vector and database HOG feature vector

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swapnali ware
swapnali ware on 16 Jul 2019
can I use comination for HOG and SURF features for character recognition for better performance??

SATISH KUMAR
SATISH KUMAR on 19 Dec 2019
how to combine SURF and HOG
here is the simple solution as per my knowledge and i have used also
surf = [surf_features];
HOG = [hog_features];;
combined_Features = [surf_features,hog_features];
now you have the simple concatenated feature set.
hope this will help you.

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