Back to results
US 11,776,239 B2Granted
Liveness test method and liveness test apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsSeungju Han, Byung Kwan Kim, Jong-Sok Kim, Sungdo Choi
Life of this patent
Estimating the term…
Abstract
Disclosed is a liveness test method and liveness test apparatus. The liveness test method includes determining a presence of a subject using a radar sensor, performing a first liveness test on the subject based on radar data obtained by the radar sensor, in response to the subject being present, acquiring image data of the subject using an image sensor, in response to a result of the first liveness test satisfying a first condition, and performing a second liveness test on the subject based on the image data.
Claims28
A liveness test method, comprising:
- determining a presence of a subject using a radar sensor;
- performing a first liveness test on the subject based on radar data obtained by the radar sensor, in response to the subject being present;
- acquiring image data of the subject using an image sensor, in response to a result of the first liveness test satisfying a first condition;
- detecting, using the radar data, a face region of the subject in the image data;
- and
- performing, based on the detected face region of the subject in the image data, a second liveness test on the subject.
3 more elements
A liveness test method, comprising:
- determining, using a radar data acquired by a radar sensor, a presence of a subject;
- acquiring, in response to the subject being present, image data of the subject using an image sensor;
- detecting, using the radar data, a plurality of regions of interest within the image data;
- detecting, using the radar data, among the plurality of regions of interest within the image data, a face region of the subject in the image data;
- performing, based on the detected face region of the subject in the image data, a first liveness test on the subject based on the image data;
- and
- performing a second liveness test on the subject based on the radar data obtained by the radar sensor and the image data acquired by the image sensor, in response to a result of the first liveness test satisfying a first condition.
4 more elements
A liveness test apparatus, comprising:
- a radar sensor;
- an image sensor;
- and
- a processor configured to:
- determine a presence of a subject using the radar sensor,
- perform a first liveness test on the subject based on radar data obtained by the radar sensor, in response to the subject being present,
- acquire image data of the subject using the image sensor, in response to a result of the first liveness test satisfying a first condition,
- detect, using the radar data, a face region of the subject in the image data, and
- perform, based on the detected face region of the subject in the image data, a second liveness test on the subject.
6 more elements
A liveness test apparatus, comprising:
- a radar sensor;
- an image sensor;
- and
- a processor configured to:
- determine a presence of a subject using the radar sensor,
- perform a first liveness test on the subject based on radar data obtained by the radar sensor, in response to the subject being present,
- acquire image data of the subject using the image sensor, in response to a result of the first liveness test satisfying a first condition, and
- perform a second liveness test on the subject based on the image data,
- wherein the processor is further configured to perform a third liveness test on the subject based on the radar data and the image data, in response to a result of the second liveness test satisfying a second condition.
6 more elements
A liveness test apparatus, comprising:
- a radar sensor configured to obtain a radar data;
- an image sensor configured to obtain an image data;
- and
- a processor configured to:
- determine, using the radar data, whether a subject is present;
- acquire, in response to the subject being present, an image data of the subject;
- detect, using the radar data, a plurality of regions of interest within the image data;
- detect, using the radar data, among the plurality of regions of interest, a face region of the subject in the image data;
- perform, based on the detected face region of the subject in the image data, a first liveness test on the subject;
- and
- perform a second liveness test on the subject based on the radar data obtained by the radar sensor and the image data acquired by the image sensor, in response to a result of the first liveness test satisfying a first condition.
8 more elements
A liveness test method, comprising:
- determining a presence of a subject using a radar sensor;
- performing a first liveness test on the subject based on first radar data obtained by the radar sensor, in response to the subject being present;
- acquiring image data of the subject using an image sensor, in response the first liveness test satisfying a first threshold;
- performing a second liveness test on the subject based on the image data;
- performing a third liveness test on the subject based on second radar data and the image data, in response the second liveness test satisfying a second threshold.
2 more elements
Dependencies are inferred from the claim text.