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Real time pedestrian detection

asked 2016-04-20 14:26:46 -0500

updated 2016-05-17 07:34:34 -0500

i have found a code about real time pedestrian detection and i think it's results seem better than OpenCV's HOGDescriptor.

i have already made simple improvements on the original code and want to work on how to improve it.

if some experienced user test it and share his remarks i will be grateful.

Link of Github Repository

PS: i asked the author about licence of his code, he replied as "We have not specify the licence terms. However, you can use the code for academic and research purposes following the BSD 3-clause one. But you cannot use the code for business purposes."

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I'll take a look, but I don't think that's compatible with the OpenCV license. It might be better to write your own implementation of the algorithm. I don't think you can change something to make it yours, at least as far as copyrights are concerned.

Tetragramm gravatar imageTetragramm ( 2016-04-20 19:08:53 -0500 )edit

@Tetragramm, thanks for your comment. i am supposing what i have done is using the code on research purposes.

sturkmen gravatar imagesturkmen ( 2016-04-20 19:21:39 -0500 )edit

As long as you aren't including it in anything you're selling it's fine. But OpenCV is allowed to be included with commercial software, so this can't be part of OpenCV.

Tetragramm gravatar imageTetragramm ( 2016-04-20 19:25:28 -0500 )edit
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Well, it works, and there were very few false alarms. Didn't pick up every pedestrian in my datasets, and was a bit hit and miss on the ones it did find. It seems to depend heavily on the legs. If the legs are off the bottom of the image, or in a strange position, then it misses them. It also slowed below real-time on a 720x576 pixel dataset, and I've got a nice CPU that it was using all the cores of.

Tetragramm gravatar imageTetragramm ( 2016-04-20 19:44:28 -0500 )edit

Hmm. If I were to re-write this for OpenCV, it doesn't look like there would be anything left of the original code. So it might actually be ok.

Tetragramm gravatar imageTetragramm ( 2016-04-20 20:12:44 -0500 )edit

Thanks again. your comments are appreciated.

sturkmen gravatar imagesturkmen ( 2016-04-20 20:35:39 -0500 )edit

When you say your results are better than opencv can you give more explanations? Did you plot a DET curve? Have you tried on a lot of of test samples? OpenCV log-average miss rate gives me the same results as the INRIA HOG optimised by the authors (46%)

Romanzo gravatar imageRomanzo ( 2016-06-20 20:45:15 -0500 )edit

@Romanzo i did not do any comparison about accuracy but it seems there is a significant increase in running speed.

sturkmen gravatar imagesturkmen ( 2016-06-20 21:02:57 -0500 )edit

ok that's a good point but for the accuracy you should plot a DET curve otherwise it's hard to be sure which one is the best. Also you can have a look at this paper it's comparing different algorithm. http://www.vision.caltech.edu/publica...

Romanzo gravatar imageRomanzo ( 2016-06-21 19:20:18 -0500 )edit

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answered 2016-05-17 08:16:55 -0500

atv gravatar image

Pretty sure if it has a BSD-3 clause license you are allowed to use it in commercial fashion. But i guess what the author means only a specific part of that license (and he already said that it's not to be used in commercial fashion)

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Asked: 2016-04-20 14:26:46 -0500

Seen: 1,896 times

Last updated: May 17 '16