A three-dimensional photo acquisition method and acquisition system

Abstract

The invention discloses a method for collecting three-dimensional photos. Step 1. First, an array of intelligent terminals firstly shoots a stationary subject; Step 2. Transmits the first-shot data to a photo modeling server to obtain the initial feature density of the subject. The distribution value, and then the photo modeling server generates the best projection scheme according to the initial characteristic density distribution value and sends it to the projector array through the projection controller; wherein, the projector array refers to a set composed of one or more than one projector; Step 3. Each projector in the projector array simultaneously projects the optimal projection pattern assigned to them. While projecting the optimal pattern, the smart terminal array starts to take photos to extract the feature points of the entire area of ​​the object. The invention also discloses a collection system applying the above three-dimensional photo collection method.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional reconstruction based on photos, and relates to a three-dimensional photo collection method and a collection system. Background technique [0002] At present, the synchronous photo collection in the photo-based 3D reconstruction system is generally realized by using multiple cameras to take pictures of the same object at the same time. The present invention abbreviates this synchronous photo collection method as a 3D photo collection method, but this method There are some problems to be solved: 1. The subject itself has few feature points, such as a smooth surface with a single color. 2. The material and reflective properties of different areas of the subject are inconsistent, which makes it difficult to take into account the collection of feature points in different areas in the exposure time of the photo. 3. The spatial scale of the subject is relatively large, and the depth of field o...

AI Technical Summary

Problems solved by technology

[0002] At present, the synchronous photo collection in the photo-based 3D reconstruction system is generally realized by using multiple cameras to take pictures of the same object at the same time. The present invention abbreviates this synchronous photo collection method as a 3D photo collection method, but this method There are some problems to be solved: 1. The subject itself has few feature points, such as a smooth surface with a single color

2. The material and reflective properties of different areas of the subject are inconsistent, which makes it difficult to take into account the collection of feature points in different areas in the exposure time of the photo

3. The spatial scale of the subject is relatively large, and the depth of field of the lens may not be able to accommodate the subject to be photographed

The existence of the above three problems makes the photos obtained by ordinary photo collection methods not have enough feature points in 3D reconstruction.

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