A 3D Stereo Reconstruction Method Based on Single Line Image

Abstract

The invention discloses a single line image-based three-dimensional reconstruction method. The method comprises the following steps: firstly performing vectorization processing on an input line image, and converting the line image into a two-dimensional vector line plot; then, matching the two-dimensional vector line plot and a preset three-dimensional model base by applying a subgraph isomorphism method, wherein the model matched with the two-dimensional vector line plot is called a candidate model; finally, performing minimized solving on the coordinate difference function of the line plot and the candidate model so as to select the optimal model and obtain a reconstruction result. According to the single line image-based three-dimensional reconstruction method disckosed by the invention, three-dimensional reconstruction can be effectively performed on the single line image, so that the reading experiences of related documents are greatly improved.

Description

technical field [0001] The invention belongs to the field of image processing and computer vision, and relates to a three-dimensional reconstruction method based on a single line image. Background technique [0002] There are a large number of solid geometric figures in various electronic documents. These documents include textbooks, test questions, presentations, and more. However, most of these three-dimensional geometric figures are stored in documents in the form of two-dimensional line images, and cannot directly present the three-dimensional structure of objects, which causes inconvenience to readers. Especially today as mobile reading devices and 3D display devices are becoming more and more mature, the three-dimensional geometric figures stored and displayed in the form of two-dimensional line images have fallen behind the advanced display technology, affecting readers' reading experience. If these line images can be restored and reconstructed into 3D, it will grea...

AI Technical Summary

Problems solved by technology

[0005] It can be seen that most of the current 3D reconstruction methods for single line drawings can only process vectorized line drawings, but cannot process images.

Even if the line image can be converted into a vector line image through certain preprocessing, the current method is highly dependent on the integrity and correctness of the line image, and some even have to rely on manual processing to extract the line image, and there is no efficient, direct Error-tolerant 3D Stereo Reconstruction Method for Image Processing

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