Rotation invarient object recognition

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mustafa 2013-12-26

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https://ww2.mathworks.cn/matlabcentral/answers/110795-rotation-invarient-object-recognition

评论： mustafa 2013-12-27

Hi!

I recognize an object via HOG features. But it doesn't detect image's rotationals. Is there any way continuing at my point?

Secondly, in video, i detect with snapshot function. Maybe you know more efficient way..

Edit: get frame via getsnapshot(), than detect via step(dedector, photo)

frame= getsnapshot(handles.vid); bboxes = step(handles.Detector, frame);

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Answer 1

Image Analyst 2013-12-26

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I don't understand your first question.

If you're detecting things in video frames, you do need to call getsnapshot(). That in itself doesn't detect anything - it just gets the frame so you can do the detection with an algorithm of your choice.

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Image Analyst 2013-12-27

Perhaps if you want to get a multitude of frames at one time instead of just one frame at a time. You still need to process just one frame at a time though, I think. Though if you're doing something like motion prediction you may have to look at several frames to predict the location in the next frame.

mustafa 2013-12-27