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US 9,438,863 B2Granted
Location recognition apparatus and method
AssigneeNulsom Inc.
InventorChang-Hoon Lee
Life of this patent
Estimating the term…
Abstract
A position recognition apparatus and method for determining the position of an object by using a camera are provided. The object may include a controllable light source, and the position recognition apparatus may store identification information of the object. The position recognition apparatus may obtain a spatial image by capturing an image of a place where the object is located, may extract the position of the object by processing the spatial image, and may correlate the extracted position with the object, thereby completing a position map.
Claims9
A position recognition method, comprising:
- transmitting an indicator signal to a plurality of light emitters, wherein the plurality of light emitters are located in a predetermined image-capturing region for an image-capturing unit, are arranged irregularly, and each have identification information, and wherein the indicator signal includes a light emission signal for enabling at least one target light emitter of the plurality of light emitters to emit light and identification information of the at least one target light emitter, and the indicator signal includes no position information of the at least one target light emitter;
- obtaining a spatial image by capturing an image of the image-capturing region;
- detecting at least one light source from the at least one target light emitter which emits the light in response to the transmitted indicator signal by analyzing the spatial image;
- calculating at least one spatial coordinate corresponding to the detected at least one light source;
- and
- correlating the at least one spatial coordinate with the transmitted identification information of the at least one target light emitter.
3 more elements
A position recognition apparatus, comprising:
- a communication unit configured to transmit an indicator signal to a plurality of light emitters, wherein the plurality of light emitters are located in a predetermined image-capturing region for an image-capturing unit, are arranged irregularly, and each have identification information, and wherein the indicator signal includes a light emission signal for enabling at least one target light emitter of the plurality of light emitters to emit light and identification information of the at least one target light emitter and the indicator signal includes no position information of the at least one target light emitter;
- an image capturing unit configured to obtain a spatial image by capturing an image of the image-capturing region;
- a light source detection unit configured to detect at least one light source from the at least one target light emitter which emits the light in response to the transmitted indicator signal by analyzing the spatial image;
- a coordinate calculation unit configured to calculate at least one spatial coordinate corresponding to the detected at least one light source;
- a coordinate correlation unit configured to correlate the at least one spatial coordinate with the transmitted identification information of the at least one target light emitter;
- and
- a storage unit configured to store results of a correlation performed by the coordinate correlation unit as one or more items of a correlation list.
4 more elements
A light emitter, comprising:
- a light emission unit configured to emit light;
- a communication unit configured to communicate with a position recognition apparatus;
- a storage unit configured to store identification information;
- and
- a driving unit configured to control the light emission unit to emit light in response to a receipt of an indicator signal including the identification information via the communication unit,
- wherein the position recognition apparatus comprises:
- a communication unit configured to transmit the indicator signal to a plurality of light emitters, wherein the plurality of light emitters are located in a predetermined image-capturing region for an image-capturing unit, are arranged irregularly, and each have identification information, and wherein the indicator signal includes a light emission signal for enabling at least one target light emitter of the plurality of light emitters to emit light and identification information of the at least one target light emitter, and the indicator signal includes no position information of the at least one target light emitter;
- an image capturing unit configured to obtain a spatial image by capturing an image of the image-capturing region;
- a light source detection unit configured to detect at least one light source from the at least one target light emitter which emits the light in response to the transmitted indicator signal by analyzing the spatial image;
- a coordinate calculation unit configured to calculate at least one spatial coordinate corresponding to the detected at least one light source;
- a coordinate correlation unit configured to correlate the at least one spatial coordinate with the transmitted identification information of the at least one target light emitter;
- and
- a storage unit configured to store results of a correlation performed by the coordinate correlation unit as one or more items of a correlation list.
10 more elements
Dependencies are inferred from the claim text.