Hi, I have understood your requirement and having worked on projects very similar to this, I believe I can get your work done in a maximum of 4 days. I would be happy to discuss this further.
Relevant Skills and Experience
Helmet detection using HAAR classifier, perimeter intrusion, direction detection, and many more
Proposed Milestones
$30 USD - upfront payment
$30 USD - Training claasifier and object detection
$25 USD - Image cropping and writing relevant API
$9 USD - Final Delivery