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headcount detection with opencv?

java

asked 2017-11-26 19:35:13 -0600

IL416
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Hi All, I am trying to build a solution for the headcount from the queue on image with opencv with using Java. I build opencv from the source on Ubuntu. I tried all the cascades that is shipped with the opencv nothing is working because the object does not facing /look the camera necessarily. Only Hog cascade pedestrian detection is giving about 50% result from the side angle. While i will try to train my own cascade, my question is is the possible with Opencv or please direct to right direction if i am following the wrong approach. Your suggestions will be greatly appreciated.

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answered 2017-11-27 03:50:29 -0600

berak
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updated 2017-11-27 04:23:04 -0600

if you cannot guarantee, that folks are looking stright into the camera, try the following:

use 2 CascadeClassifiers, one with a frontal face detector, and the other with the profile detector

then, you have to do 3 detections, 1st with the frontal, 2nd with the profile, and a 3rd profile detection with the flipped image.

then use IOU to filter out duplicate detections

"While i will try to train my own cascade"

i have some doubts, that you will be able to get better results. (you'd need a ton of data for this)

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Thank you @berak I will follow your suggestions. Will post once i have some positive results. Thank you!

IL416 ( 2017-11-27 14:45:12 -0600 )edit

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Asked: 2017-11-26 19:35:13 -0600

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Last updated: Nov 27 '17

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