Portable scanner and scanning method thereof
AssigneeHimo, Inc.
InventorIn Pyo HONG
Life of this patent
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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.
Claims15
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 third 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.
Dependencies are inferred from the claim text.