Object surface reconstruction system and method

Abstract

The invention relates to an object surface reconstruction system and method. The system comprises an illumination component, an image sensor, a controller and a data processing unit, wherein the illumination component comprises a light source and a mirror reflection device, the light source adopts a point light source, the point light source is converted to linear light through an optical element, and the mirror reflection device is of a one-dimensional vibrating mirror and used for reflecting the linear light to a target area to form a linear array-like structured light pattern by adjusting the posture of a mirror; the image sensor is used for gradually exposing to shoot a projection image of the structured light pattern in at least part of area in the target area; the controller is used for controlling the exposure area of the image sensor to be synchronous with the projection area of structured light reflected by the mirror reflection device; and the data processing unit is connected with the image sensor and used for receiving the projection image of the structured light pattern in a real-time manner, getting the displacement value of the projection image from the structured light pattern in a reference image which is shot in advance and calculating three-dimensional point cloud data of an object in the target area.

Description

[0001] This application is a divisional application of an invention patent application with the filing date of January 27, 2011, the application number of 201110029945.2, and the title of "A System and Method for Object Surface Reconstruction". technical field [0002] The present invention relates to a three-dimensional image reconstruction technology, and more specifically, to a system and method for object surface reconstruction. Background technique [0003] Point cloud data is the points obtained by direct sampling of the surface of the object by using the 3D scanning equipment. These points are the initial and most direct representation of the surface of the 3D model. By analyzing the point cloud data, the geometric surface of the model can be reconstructed. [0004] There are many ways to acquire object point clouds. Common methods include using structured light image information to acquire point cloud data, and binocular visible light image information to acquire dat...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method that can solve the defects that the speckle structured light projected by the existing speckle-based method is fixed, so that the equipment requirements of the image sensor are relatively high and the equipment is less flexible. System and method for object surface reconstruction by controlling specular reflection device as required, thereby generating structured light pattern suitable for measurement object, and synchronously controlling image sensor to scan required area

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