An Intelligent Filling Method for Answers Based on Augmented Reality

The exercises and answers in traditional books are often separated, the search efficiency is low, and errors are easy. The method in this article only needs to paste the QR code next to the exercises, scan the QR code and exercises, and the answers can be presented in the exercises, making ordinary books Become books with augmented reality effects. In order to reduce the impact of the surrounding environment on the image data, the acquired image frame is first converted into a single-channel image, and then the bilateral filtering algorithm and the maximum between-class variance method are used to denoise and second the image. In order to fill the answers adaptively into the parentheses of the exercises, the template matching method is used to locate and identify the left and right parentheses respectively; then the parentheses pairwise screening is used to achieve the pairing of the left and right parentheses, and the parentheses are sorted; finally according to the size and angle of the QR code, combined with the data in the QR code, generates an answer that matches the size and angle of the original question and fills it in parentheses. Experiments show that the method has high accuracy, real-time and good integration.