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US 12,178,551 B2Granted
Hybrid body temperature measurement system and method thereof
AssigneeWistron Corporation
InventorsChih-Hao Chiu, Kuo-Hsien Lu
Life of this patent
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Abstract
A hybrid body temperature measurement system and a hybrid body temperature measurement method are provided. In the method, position sensing data is obtained. The position sensing data includes an azimuth of one or more to-be-detected objects relative to a reference position. The position sensing data is mapped to a thermal image so as to generate a mapping result. The thermal image is formed in response to a temperature. A position of the to-be-detected object in the thermal image is determined according to the mapping result. Accordingly, the detection accuracy is improved.
Claims18
A hybrid body temperature measurement method, adapted for execution by a processor included in a computing apparatus, the method comprising:
- receiving position sensing data and a thermal image from a distance sensor and a temperature sensor respectively, wherein the distance sensor and the temperature sensor are disposed at a reference position and face a same direction with a same horizontal center, the position sensing data comprises a distance and an azimuth of at least one to-be-detected object relative to the reference position, and the thermal image is formed in response to a temperature of an area in a field of view of the temperature sensor;
- dividing the thermal image into a plurality of blocks according to a plurality of vertical lines and mapping the azimuth of the at least one to-be-detected object included in the position sensing data to a corresponding block in the thermal image;
- generating a mapping result by mapping the corresponding block in the thermal image to the distance corresponding to the at least one to-be-detected object based on the azimuth of the at least one to-be-detected object;
- and
- determining the at least one to-be-detected object to be a biological body among a plurality of thermal spots detected in the area in the field of view of the thermal image and a position of the at least one to-be-detected object in the thermal image according to the mapping result,
- wherein the step of determining the position of the at least one to-be-detected object in the thermal image according to the mapping result comprises:
- determining at least one target block from the plurality of blocks, wherein each of the at least one target block comprises the at least one to-be-detected object;
- in response to the mapping result indicating one of the at least one target block in the thermal image comprises a plurality of distances included in the position data, and each of the plurality of distances corresponding to one of the at least one to-be-detected object, dividing the one of the at least one target block into a plurality of second sub-blocks according to a number of the distances, wherein an arrangement direction of the second sub-blocks is perpendicular to an arrangement direction of the blocks;
- and
- determining a corresponding second sub-block from among the plurality of second sub-blocks for each of the at least one to-be-detected object present in the one of the at least one target block, according to the distance between the at least one to-be-detected object and the reference position.
7 more elements
A hybrid body temperature measurement system, comprising:
- a distance sensor;
- a temperature sensor, wherein the distance sensor and the temperature sensor are disposed at a reference position and face a same direction with a same horizontal center;
- and
- a computing apparatus, comprising a processor configured for:
- receiving position sensing data and a thermal image from the distance sensor and the temperature sensor respectively, wherein the position sensing data comprises a distance and an azimuth of at least one to-be-detected object relative to the reference position, and the thermal image is formed in response to a temperature of an area in a field of view of the temperature sensor;
- dividing the thermal image into a plurality of blocks according to a plurality of vertical lines and mapping the azimuth of the at least one to-be-detected object included in the position sensing data to a corresponding block in the thermal image;
- generating a mapping result by mapping the corresponding block in the thermal image to the distance corresponding to the at least one to-be-detected object based on the azimuth of the at least one to-be-detected object;
- and
- determining the at least one to-be-detected object to be a biological body among a plurality of thermal spots detected in the area in the field of view of the thermal image and a position of the at least one to-be-detected object in the thermal image according to the mapping result,
- wherein the processor is further configured for:
- determining at least one target block from the plurality of blocks, wherein each of the at least one target block comprises the at least one to-be-detected object;
- in response to the mapping result indicating one of the at least one target block in the thermal image comprises a plurality of distances included in the position data, and each of the plurality of distances corresponding to one of the at least one to-be-detected object, dividing the one of the at least one target block into a plurality of second sub-blocks according to a number of the distances, wherein an arrangement direction of the second sub-blocks is perpendicular to an arrangement direction of the blocks;
- and
- determining a corresponding second sub-block from among the plurality of second sub-blocks for each of the at least one to-be-detected object present in the one of the at least one target block, according to the distance between the at least one to-be-detected object and the reference position.
11 more elements
Dependencies are inferred from the claim text.