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US 12,260,647 B2Granted
Measurement method
AssigneeNEC Solution Innovators, Ltd.
InventorTakeshi Saitoh
Life of this patent
Estimating the term…
Abstract
A measurement apparatus detects a person and an umbrella based on acquired image data, and measures the number of persons based on a detected result.
Claims10
A measurement method performed by a computer comprising:
- acquiring, from a camera, a plurality of frames of image data;
- detecting an umbrella and each of one or more heads in each frame;
- generating, on each frame, a rectangle surrounding each detected head and a rectangle surrounding the detected umbrella;
- for each head, generating a tracking line connecting the head between the frames;
- generating a tracking line connecting the umbrella between the frames;
- determining a number of associations satisfying a condition, each association including the umbrella and one of the heads;
- and
- outputting a number of persons in the image data as the number of the associations satisfying the condition.
5 more elements
A measurement apparatus comprising:
- a memory storing instructions;
- and
- a processor configured to execute the instructions to:
- acquire, from a camera, a plurality of frames of image data;
- detect an umbrella and each of one or more heads in each frame;
- generate, on each frame, a rectangle surrounding each detected head and a rectangle surrounding the detected umbrella;
- for each head, generate a tracking line connecting the head between the frames;
- generate a tracking line connecting the umbrella between the frames;
- determine a number of associations satisfying a condition, each association including the umbrella and one of the heads;
- and
- output a number of persons in the image data as the number of the associations satisfying the condition.
8 more elements
A non-transitory computer-readable recording medium storing a program executable by a measurement apparatus to perform a process comprising:
- acquiring, from a camera, a plurality of frames of image data;
- detecting an umbrella and each of one or more heads in each frame;
- generating, on each frame, a rectangle surrounding each detected head and a rectangle surrounding the detected umbrella;
- for each head, generating a tracking line connecting the head between the frames;
- generating a tracking line connecting the umbrella between the frames;
- determining a number of associations satisfying a condition, each association including the umbrella and one of the heads;
- and
- outputting a number of persons in the image data as the number of the associations satisfying the condition.
5 more elements
Dependencies are inferred from the claim text.