CODEWITHSUNDEEP
opencvimage-processingobject-detection
user2039318
user2039318

Reputation: 211

Haar Cascade vs Hog Detection

I have been working around with OpenCV for few days now and I have a project where I should detect cars and humans from the sky.

So here are my inputs:

And here are my output:

Based on that, my question is as follows: Which one between Haar Cascade and Hog Detection would you recommend to do so and why? Or any else?

Many thanks for your answers

Upvotes: 16

Views: 16666

Answers (3)

Mohan Goud
Mohan Goud

Reputation: 179

You need to change scale factor and minimum neighbours in HAAR cascade which is not same for all the image. So it's better to use HOG.

Upvotes: 1

Jiechao Li
Jiechao Li

Reputation: 366

I have been trying to use HAAR to detect human, and it turns out to give too many false positives. I think HAAR is only suitable for face or eye detection.

since your camera is in the sky, the human is pretty small in the image and got a whole body shape. HOG would be a better choice.

Upvotes: 3

David Daniel
David Daniel

Reputation: 535

HOG is usually better for human detection, than Haar. I have only experience in this so I thought I'd give some input on that. However, the limitation of HOG is that the human must be within a "perfect" area on the screen. Too close, it won't detect the human. Too far, it won't detect the human.

I have had better luck with HOG than Haar. Haar gave me too many false positives.

Upvotes: 8

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