Budget: 700 USD Deadline: 10 days
I am ready to take on the development of this fully functional solution.
Proposal and Implementation Plan
My approach will be based on the use of Optical Character Recognition (OCR) for license plates (LPR/ANPR), optimized for operation on the limited resources of Raspberry Pi.
1. Technical Approach (Python and OpenCV)
1. Image Capture: I will set up proper video stream capture from a USB camera on Raspberry Pi.
2. Processing and Detection: I will use OpenCV libraries for image preprocessing (lighting correction, contrast adjustment, conversion to grayscale).
3. License Plate Localization: I will apply object detection algorithms (e.g., optimized YOLO models or Haar cascades/specialized methods) to accurately locate the license plate area in the image.
4. Recognition: A specialized library Tesseract-OCR will be used to convert the license plate image into text or, for better accuracy, the OpenALPR (Open Automatic License Plate Recognition) library, if it provides stable operation on Pi. I will configure it for Ukrainian and European license plate formats.
5. Output: I will implement functionality to output the recognized text in a convenient format.
2. Result (Deliverables)
• A fully functional Python script, optimized for Raspberry Pi.
• Instructions for setting up the USB camera and running the program.
• Testing: Demonstration of stable system operation under various lighting conditions (as much as possible within the budget).
3. Budget and Timeline
• Budget: The amount you specified of 700 USD is acceptable for implementing this basic functionality (Detection + Recognition) and optimizing it for Raspberry Pi.
• Timeline: The project implementation will take approximately 7-10 working days.
I am ready to start discussing the details regarding the desired frame rate, recognition accuracy requirements, and specific license plate formats (Ukrainian/foreign) to provide you with final confirmation.