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Three-dimensional object reconstruction method and terminal equipment

A technology for three-dimensional objects and object detection, applied in the field of computer vision, can solve the problem of low reconstruction accuracy of textured surfaces and non-Lambertian surfaces, and achieve the effects of avoiding noise data interference, enhancing adaptive ability, and improving accuracy

Active Publication Date: 2020-11-17
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a three-dimensional object reconstruction method and terminal equipment to solve the problem of low reconstruction accuracy of textured surfaces and non-Lambertian surfaces, and Enhanced adaptive ability to construct complex 3D scenes based on structured light coding patterns

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  • Three-dimensional object reconstruction method and terminal equipment
  • Three-dimensional object reconstruction method and terminal equipment
  • Three-dimensional object reconstruction method and terminal equipment

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Embodiment Construction

[0036] The core of the structured light 3D scanning system is the encoding and decoding algorithm. According to the encoding method, the existing structured light 3D scanning technology can be divided into three categories: time encoding, spatial encoding and hybrid encoding.

[0037] Time-coded structured light technology has been widely studied and used due to its advantages of large coding capacity and high reconstruction resolution. The commonly used time-coding schemes include Gray code structured light coding (for example, Gray code sequence, Gray code sequence plus line shift and Gray code sequence). code sequence plus phase shift) and binary structured light coding (with "0" (pure black) and "255" (pure white) as coding primitives). In addition, the structured light technology that uses different gray value coded fringe sequences (that is, coding patterns) to project and decode based on fringe positioning is called fringe structured light technology. For example, when a...

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Abstract

The invention is suitable for the technical field of computer vision, and provides a three-dimensional object reconstruction method and terminal equipment, and the method comprises the steps: obtaining a preset number of detection object images; based on stripe junctions corresponding to a preset number of nodes in each layer of a preset binary tree, determining matched nodes of pixels of each detection object image in each layer of the binary tree; constructing a node path corresponding to the pixel of each detection object image based on the matched node in each layer, and determining a stripe boundary matching the pixel of each detection object image according to the stripe boundary corresponding to each node of the node path; and reconstructing the three-dimensional object according tothe phase encoding value of the fringe boundary matched with the pixels of the preset number of detection object images. Therefore, the problem that the reconstruction precision of the texture surface and the non-Lambert surface is not high is solved, and the adaptive capacity of constructing a complex three-dimensional scene based on the structured light coding pattern is enhanced.

Description

technical field [0001] The present application belongs to the technical field of computer vision, and in particular relates to a three-dimensional object reconstruction method and a terminal device. Background technique [0002] The rapid development of 3D scanning technology has been applied to many fields and industries such as industrial inspection, design, animation and film special effects production, 3D display, virtual surgery, and reverse engineering. [0003] From the point of view of the existing 3D scanning technology, laser 3D scanning and projection structured light 3D scanning technology are the main technologies. The laser 3D scanning system projects laser lines or dot arrays, captures the projected laser features with a camera, and restores 3D through triangulation. Depth information, but the main disadvantage of this point-by-point and line-by-line scanning method is its slow speed. In the projector-based structured light 3D scanning system, it uses the str...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T9/40
CPCG06T17/005G06T9/40
Inventor 宋展宋钊
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI