Irregular target scanning and printing method based on three-dimensional camera

Abstract

The invention discloses an irregular target scanning and printing method based on a three-dimensional camera, and belongs to the field of three-dimensional reconstruction. The method comprises the following steps: firstly, carrying out camera initialization and communication initialization, and collecting multiple pieces of point cloud data by using a three-dimensional camera; then statistical filtering processing is carried out; then carrying out random sampling consistency estimation, and removing a reference surface; carrying out top projection to realize bottom surface compensation; then carrying out centroid removal operation and rotation transformation; performing registration by using an iterative nearest point algorithm to obtain complete irregular target point cloud data after registration of a plurality of point clouds; smoothing is carried out by using a moving least square algorithm; performing curved surface reconstruction by using a greedy projection triangulation algorithm; and finally, the file format is converted into stl from pcd, slicing processing is carried out, final G-code file data is transmitted to a 3D printer, and 3D real object printing is carried out. According to the method, the irregular target is shot at multiple angles through the three-dimensional camera, manual modeling is not needed, the defect that manual modeling of a complex object is difficult is overcome, and the application range of the 3D printing technology is wider.

Description

technical field [0001] The invention belongs to the field of three-dimensional reconstruction, and in particular relates to a method for scanning and printing irregular objects based on a three-dimensional camera. Background technique [0002] Three-dimensional reconstruction technology has broad development prospects and sales markets in various fields. For teaching and research, it can bring teachers and students more imagination and more advanced teaching methods; for handmade artworks, it can solve the problems of high failure rate, time-consuming and energy-consuming production of handmade artworks; for precision parts , expensive parts and other consumables, can reduce its production cost. [0003] In the early days of 3D reconstruction technology, people mostly performed manual modeling operations, but when faced with some complex objects, manual modeling was difficult, and even some objects could not be manually modeled at all, which brought a lot of inconvenience t...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the image self-calibration method is easily affected by image quality and feature point matching accuracy, and the accuracy of obtaining three-dimensional information of objects is low.

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