Scanning and reconstruction method of 3D model based on smart phone
A technology of smart phones and 3D models, applied in image data processing, instruments, calculations, etc., can solve the problem of not being able to collect outdoor scenes, and achieve the effect of improving speed and reliability, accurate results, and strong applicability
Inactive Publication Date: 2018-04-20
TSINGHUA UNIV
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[0002] The current popular 3D model scanning method usually uses Kinect, and the result is relatively accurate, but it cannot be used for outdoor scene collection due to the use of structured light for depth estimation
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[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0027] A method for scanning and reconstructing a three-dimensional model based on a smart phone according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
[0028] figure 1 It is a flowchart of a method for scanning and reconstructing a 3D model based on a smart phone according to an embodiment of the present invention. Such as figure 1 As shown, the method includes the following steps:
[0029] Step S1: Obtain the attitude data of the smart phone, and establish a world co...
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The invention proposes a three-dimensional model scanning reconstruction method based on a smartphone. The three-dimensional model scanning reconstruction method comprises the steps of: acquiring attitude data of the smartphone, and regarding a center of a camera of the smartphone as a dot to establish a world coordinate system according to the attitude data of the smartphone; selecting a plurality of key frames from an image sequence shot by the camera; tracking the camera to obtain moving data and attitude data of the camera; estimating depth information and credibility of each frame in the plurality of key frames; and carrying out weighted averaging on the depth information of the plurality of key frames according to the credibility of the depth information of each frame to obtain final depth information; and mapping each frame in the key frames into the world coordinate system, thereby achieving the reconstruction of a three-dimensional model. The three-dimensional model scanning reconstruction method has the advantages of low computation complexity, fast algorithm running speed, high algorithm reliability and high calculation result accuracy.
Description
technical field [0001] The invention relates to the technical fields of computer vision and three-dimensional reconstruction, in particular to a method for scanning and reconstructing a three-dimensional model based on a smart phone. Background technique [0002] The currently popular scanning method of 3D models usually uses Kinect, and the results are relatively accurate, but because structured light is used for depth estimation, it cannot be used for outdoor scene collection. Contents of the invention [0003] The present invention aims at solving one of the technical problems in the related art mentioned above at least to a certain extent. [0004] Therefore, the object of the present invention is to provide a smart phone-based 3D model scanning and reconstruction method, which has the advantages of low computational complexity, fast algorithm operation speed, high algorithm reliability and high accuracy of calculation results. [0005] In order to achieve the above o...
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IPC IPC(8): G06T7/50
CPCG06T2207/10016G06T2207/10028
Inventor 刘烨斌张洋戴琼海
Owner TSINGHUA UNIV