Portable scanner and scanning method thereof
AssigneeHimo, Inc.
InventorIn Pyo Hong
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a portable scanner capable of increasing the precision of focus and a scanning method using the same. According to an embodiment of the present disclosure, the portable scanner, which generates a three dimensional (3D) image from a subject, includes a focus state output device to determine a present focus state with respect to a set focal length from a subject and to output the present focus state such that a user recognizes the present focus state.
Claims14
A portable scanner to generate a three dimensional (3D) image from a subject, the portable scanner comprising:
- a focus state output device to determine a present focus state with respect to a set focal length from a subject and to output the present focus state such that a user recognizes the present focus state,
- wherein the focus state output device includes:
- a first light emitting device to obliquely irradiate a focusing beam to a surface of the subject at a predetermined angle;
- a sensor to sense a position of the focusing beam irradiated to the subject;
- a focus state determining device to determine a focus state with respect to the set focal length based on the position of the focusing beam sensed in a region of interest of the subject;
- and
- a second light emitting device to output the determined focus state in a form of a visible light, to the subject such that the user recognizes the determined focus state, the second light emitting device outputting the focus state in a form of at least one of a preset character, a preset sign, or mutually different colors.
A portable scanner comprising:
- a first light emitting device to obliquely irradiate a focusing beam to a surface of a subject, at a predetermined angle;
- a sensor to sense a position of the focusing beam irradiated to the subject;
- a focus state determining device to determine a focus state with respect to a set focal length based on a position of the focusing beam sensed in a region of interest of the subject;
- a second light emitting device to irradiate the subject with a set pattern light;
- a photographing device to photograph the subject irradiated with the set pattern light;
- a display to display image data obtained by the photographing device;
- and
- a controller to generate 3D image data of the subject using multiple pieces of 2D image data obtained by photographing the subject in mutual different directions, and to perform a control operation to display, on the display, the focus state together with the image data obtained by the photographing device.
A scanning method comprising:
- determining a present focus state with respect to a set focal length from a subject and outputting the present focus state to at least one of a display and the subject such that a user recognizes the present focus state;
- sequentially irradiating the subject with set pattern lights at the set focal length while photographing the subject irradiated with the pattern lights;
- and
- generating 3D image data of the subject by using multiple pieces of 2D image data obtained by repeating the photographing for the subject in mutual different directions,
- wherein the determining of the present focus state includes:
- obliquely irradiating a focusing beam to a surface of the subject, at a predetermined angle;
- sensing a position of the focusing beam irradiated to the subject;
- and
- determining a focus state with respect to the set focal length based on a position of the focusing beam sensed in a region of interest of the subject.
Dependencies are inferred from the claim text.