Abstract: Methods, systems, and apparatus for operations for performing biometric feature attack tests. An example system includes a biometric feature attack object, comprising a substrate, a biometric feature attachment part, and a conductive part, wherein: the substrate comprises a biometric feature carrying area and a pressing area, and the biometric feature carrying area and the pressing area are respectively disposed on two opposite sides of the substrate; the biometric feature attachment part is disposed in the biometric feature carrying area; and the conductive part is disposed in the pressing area or the biometric feature carrying area.

Abstract: Methods, systems, and apparatus for operations for performing a biometric recognition attack test on a biometric recognition device. An example method includes obtaining a biometric feature object for performing the biometric recognition attack on the biometric recognition device; Perform the biometric recognition attack test on the biometric recognition device, comprising: controlling a mechanical arm to place the biometric feature object in a recognition area of the biometric recognition device; and controlling the mechanical arm to press the biometric feature object to the biometric recognition device to trigger the biometric feature object to input the biometric features in the feature attachment part into the biometric recognition device through the conductive part; obtaining an attack test result corresponding to the biometric feature object; and determining a test result of the biometric recognition attack test performed on the biometric recognition device.

Abstract: Methods, systems, and apparatus for operations for processing fingerprint images. An example system includes obtaining an original fingerprint trace image of a fingerprint trace left by a user on a target object; inputting the original fingerprint trace image to a pre-trained fingerprint image processing model that is configured to process the original fingerprint trace image in accordance with pre-trained parameters of the pre-trained fingerprint image processing model; obtaining as output a target fingerprint trace image from the fingerprint image processing model; and using the target fingerprint trace image as a test fingerprint image for performing a test on a fingerprint recognition device, wherein a degree of matching between a fingerprint in the target fingerprint trace image and a real fingerprint that corresponds to a same finger is greater than or equal to a predetermined threshold.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for testing performance of a biometric characteristic recognition device. One of the methods includes obtaining a target simulated component for testing performance of the biometric characteristic recognition device from a plurality of simulated components. A mechanical arm is controlled, based on a camera component arranged on the mechanical arm, to input biometric characteristic information of the target simulated component to the biometric characteristic recognition device. A recognition result is obtained from the biometric characteristic recognition device and a performance test result of the biometric characteristic recognition device is determined based on the recognition result.

Abstract: Methods, systems, and apparatus for operations for processing fingerprint images. An example system includes obtaining an original fingerprint trace image of a fingerprint trace left by a user on a target object; inputting the original fingerprint trace image to a pre-trained fingerprint image processing model that is configured to process the original fingerprint trace image in accordance with pre-trained parameters of the pre-trained fingerprint image processing model; obtaining as output a target fingerprint trace image from the fingerprint image processing model; and using the target fingerprint trace image as a test fingerprint image for performing a test on a fingerprint recognition device, wherein a degree of matching between a fingerprint in the target fingerprint trace image and a real fingerprint that corresponds to a same finger is greater than or equal to a predetermined threshold.

Abstract: Methods, systems, and apparatus for operations for performing a biometric recognition attack test on a biometric recognition device. An example method includes obtaining a biometric feature object for performing the biometric recognition attack on the biometric recognition device; Perform the biometric recognition attack test on the biometric recognition device, comprising: controlling a mechanical arm to place the biometric feature object in a recognition area of the biometric recognition device; and controlling the mechanical arm to press the biometric feature object to the biometric recognition device to trigger the biometric feature object to input the biometric features in the feature attachment part into the biometric recognition device through the conductive part; obtaining an attack test result corresponding to the biometric feature object; and determining a test result of the biometric recognition attack test performed on the biometric recognition device.

Abstract: Methods, systems, and apparatus for operations for performing a biometric recognition attack test on a biometric recognition device. An example method includes obtaining a test object for performing the biometric recognition attack test corresponding to the target user; performing the biometric recognition attack test on the biometric recognition device, comprising: controlling a mechanical arm to place the test object in a recognition area of the biometric recognition device; controlling the mechanical arm to adjust the test object to have a plurality of different test object poses with respect to the biometric recognition device; obtaining a test result for the test object in each test object pose of the plurality of different test object poses; and determining an attack test result of the biometric recognition attack test on the biometric recognition device corresponding to the target user.

Abstract: Methods, systems, and apparatus for operations for performing biometric feature attack tests. An example system includes a biometric feature attack object, comprising a substrate, a biometric feature attachment part, and a conductive part, wherein: the substrate comprises a biometric feature carrying area and a pressing area, and the biometric feature carrying area and the pressing area are respectively disposed on two opposite sides of the substrate; the biometric feature attachment part is disposed in the biometric feature carrying area; and the conductive part is disposed in the pressing area or the biometric feature carrying area.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for testing performance of a biometric characteristic recognition device. One of the methods includes obtaining a target simulated component for testing performance of the biometric characteristic recognition device from a plurality of simulated components. A mechanical arm is controlled, based on a camera component arranged on the mechanical arm, to input biometric characteristic information of the target simulated component to the biometric characteristic recognition device. A recognition result is obtained from the biometric characteristic recognition device and a performance test result of the biometric characteristic recognition device is determined based on the recognition result.

Abstract: Methods, systems, and apparatus for operations for performing a biometric recognition attack test on a biometric recognition device. An example method includes obtaining a test object for performing the biometric recognition attack test corresponding to the target user; performing the biometric recognition attack test on the biometric recognition device, comprising: controlling a mechanical arm to place the test object in a recognition area of the biometric recognition device; controlling the mechanical arm to adjust the test object to have a plurality of different test object poses with respect to the biometric recognition device; obtaining a test result for the test object in each test object pose of the plurality of different test object poses; and determining an attack test result of the biometric recognition attack test on the biometric recognition device corresponding to the target user.

Abstract: An imaging architecture is described for a depth camera mode with mode switching. In one example, an imaging device has a primary camera to capture an image of a scene, a secondary camera to capture an image of the same scene, a third camera to capture an image of a second scene, a processor having a first port coupled to the primary camera to receive images from the primary camera and a second port to receive images, and a multiplexer coupled to the secondary camera and to the third camera to receive the captured images and to alternately couple the secondary camera or the third camera to the second port of the processor.

Abstract: An imaging architecture is described for a depth camera mode with mode switching. In one example, an imaging device has a primary camera to capture an image of a scene, a secondary camera to capture an image of the same scene, a third camera to capture an image of a second scene, a processor having a first port coupled to the primary camera to receive images from the primary camera and a second port to receive images, and a multiplexer coupled to the secondary camera and to the third camera to receive the captured images and to alternately couple the secondary camera or the third camera to the second port of the processor.