US 11,143,499 B2 · Three-dimensional information generating device and method capable of self-calibration

Abstract

The 3D information generating device includes a light source unit configured to irradiate light onto a target object, a coordinate mechanism unit disposed between the target object and the light source unit and including a plurality of inclined projections reflecting the light, a camera unit configured to output an image obtained by simultaneously photographing the coordinate mechanism unit and the target object, and an information processing unit configured to check a projection plane formed by the light of the light source unit and, by using the projection plane, generate 3D information about the target object while calibrating an error. Accordingly, an unskilled user may easily perform a 3D scan operation by using the coordinate mechanism unit, and moreover, since a coordinate mechanism is not installed in the outside, the 3D information generating device may easily move and may be easily maintained and managed.

Claims16

Dependent claims

A three-dimensional (3D) information generating device capable of self-calibration, the 3D information generating device comprising:

a light source unit to irradiate light onto a target object;
a coordinate mechanism unit disposed between the target object and the light source unit, the coordinate mechanism unit including a plurality of inclined projections reflecting the light;
a camera unit comprising an image sensor that outputs an image obtained by simultaneously photographing the coordinate mechanism unit and the target object;
a fixing arm coupled to the light source unit at one end of the fixing arm and coupled to the coordinate mechanism unit at another end of the fixing arm;
and
an information processing unit comprising a processor and a storage medium in communication with the processor, the storage medium storing program code that when executed by the processor checks a projection plane formed by the light of the light source unit and, by using the projection plane, generates 3D information about the target object while calibrating an error.

3 more elements

A three-dimensional (3D) information generating method capable of self-calibration, the 3D information generating method comprising:

obtaining an image by simultaneously photographing a target object, having 3D information which is to be restored, and a coordinate mechanism unit which is provided between a light source unit and the target object and includes a plurality of inclined projections reflecting light irradiated from the light source unit;
checking coordinates of a plurality of projection reflection points where the light is reflected by the plurality of inclined projections in the image;
and
checking a projection plane formed by the light, based on a relationship between the plurality of projection reflection points in the image and real projection reflection points reflected by a plurality of real projections and, by using the projection plane, generating 3D information about the target object while calibrating an error,
wherein the coordinate mechanism unit is coupled to a fixing arm at one end of the fixing arm coupled to the light source unit at another end of the fixing arm.

2 more elements

Dependencies are inferred from the claim text.

Three-dimensional information generating device and method capable of self-calibration

Life of this patent

Three-dimensional information generating device and method capable of self-calibration

Life of this patent

Abstract

Claims16