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hog detectmultiscale

Hello everyone,

I have a question about the hog.detectmultiscale method. I'm trying to perform object detection using hog and svm. I understand that after computing the hog for an image size of 64x128 pixels, it returns a 3780-size descriptor. The training was done using svmlight and it returns a single 3780 + bias-size descriptor. What I don't understand is when performing multiscale detection with a scale factor of 1.05 for example, how the comparison can be done when the detection window is bigger than the hog window. I don't think that the descriptor computed by the detection window has the same number of elements that the descriptor computed by the hog window.

Thank you in advance.

hog detectmultiscale

Hello everyone,

I have a question about the hog.detectmultiscale method.

I'm trying to perform object detection using hog and svm. I understand that after computing the hog for an image size of 64x128 pixels, it returns a 3780-size descriptor. The training was done using svmlight and it returns a single 3780 + bias-size descriptor.

What I don't understand is when performing multiscale detection with a scale factor of 1.05 for example, how the comparison can be done when the detection window is bigger than the hog window.

I don't think that the descriptor computed by the detection window has the same number of elements that the descriptor computed by the hog window.

Thank you in advance.