can any one explain to me how they use SURF and MSER in this page of matlab Extract interest point descriptors

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hajer jon 2019-8-2

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评论： hajer jon 2019-8-6

采纳的回答： Kavya Vuriti

i need to explain to me how they use MSRE and SURF

in that line "Find features using MSER with SURF feature descriptor."

https://www.mathworks.com/help/vision/ref/extractfeatures.html#namevaluepairarguments

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Answer 1

Kavya Vuriti 2019-8-5

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在 MATLAB Online 中打开

Hi,

MSER is based on taking regions that stay same for wide range of thresholds. It basically extracts co-variant regions from an image. In the particular example of Find features using MSER with SURF feature descriptor.

%Extracts the regions that stay same in the image. 
regions = detectMSERFeatures(I); 
%Extracts the surf features from the regions that are obtained from the detectMSERFeatures function. 
[features, valid_points] = extractFeatures(I,regions,'Upright',true); 

MSER gives the regions that are distributed over the entire image. Describing the SURF features over these regions will aid in the feature tracking.