Image processing, Features and Matching, and Recognition.
This part of the Camera calculator can calculate printed math problems, which is a subproject of a group project. I am responsible for designing and implementing the whole part of the printed math problem calculator. The program takes photos of printed math problem as input. Some of the photos are oblique. It is able to recognize the math expression on the photo, and solve it. Then, paste the result back to the photo.
The whole project is to write a camera calculator. Our program is able to detect and recognize the math digits and symbols on a photo. It has three functionalities. Firstly, solve a printed math problem. Secondly, solve a hand-written math problem. Thirdly, solve the Sudoku problem. Each person in our group will be responsible for one of the following parts mainly at first. For this project, I am responsible to solve the printed digit math problem.
see project report.pdf: https://rb.gy/u2cplh
The demo of this project is here: https://rb.gy/p82tnz
homography theory, contour method, neural network,etc.