How to get fixed dimension feature vectors for different size boxes?

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FARHAD 2014-5-2

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评论： Image Analyst 2014-5-4

Hi, In my detection task I have bounding box for each training image and those bounding boxes are different sizes for different images. How to get fixed dimension feature vectors for different size boxes? I am using Contourlet transform.

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Image Analyst 2014-5-2

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https://ww2.mathworks.cn/matlabcentral/answers/128012-how-to-get-fixed-dimension-feature-vectors-for-different-size-boxes#answer_135404

spatial_calibration_demo.m

Maybe they should be different sizes. If you're tracking/detecting fish in a fish tank, then I can see that the bounding boxes will be different sizes from one image to the next, even in the same fish tank.

To get actual real world lengths and areas, you need to image an object of known dimension, such as a ruler. See attached demo.

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FARHAD 2014-5-4

编辑：FARHAD 2014-5-4

yeah. I have drawn bounding box that contains car only. In my image car as positive sample and others as negative. For different cars have different sizes box. Boxes are different size but I want same dimension feature. Another thing, I am using Contourlet Transform first time and so I don't know which features are useful for my work. I am very grateful to you. Please help me.

Image Analyst 2014-5-4

Please post a picture. Also define dimension, as you are using it. If you have a 2D array of 5 rows by 8, is dimension (according to the way you are using it) "2" or "5 by 8"?

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