This application involves a crime scene footprint photography and extraction method and extraction device that can photograph a first image of the footprint in the oblique light from a fixed angle, and a second image of the footprint in the diffuse reflected light from a fixed angle; divide the first image's brightness component V1 by the second image's brightness component V2 to produce their brightness distribution ratio V3; and extract a third image corresponding to the brightness distribution ratio V3. According to the technical scheme of this application, the technology has a better image collection effect, and can provide better image materials for future footprint acquisition and identification, and can also remove the patterns of the footprint trace carrier, and leave only footprint images displayed clearly and cognizably. Moreover, the method is simple and the results are more accurate.

A device for monitoring human feet can include: a transmissive sheet configured to bear at least 90 kg supported at a height of no more than 23 cm, and a foot image capture system below the sheet. An optical image sensor can capture a field of view including at least 250 cm.sup.2 of the surface of the sheet. The device can have a central reflective element positioned below the sheet directly above the sensor and two outer mirrors such that two fields of view at least 250 cm.sup.2 each can be focused onto the sensor by a lens. Foot sole images can be automatically captured when a patient stands on the device. Images can be transmitted to a database and associated with the patient by analyzing the images for a unique predetermined metric.

A device for monitoring human feet can include: a transmissive sheet configured to bear at least 90 kg supported at a height of no more than 23 cm, and a foot image capture system below the sheet. An optical image sensor can capture a field of view including at least 250 cm.sup.2 of the surface of the sheet. The device can have a central reflective element positioned below the sheet directly above the sensor and two outer mirrors such that two fields of view at least 250 cm.sup.2 each can be focused onto the sensor by a lens. Foot sole images can be automatically captured when a patient stands on the device. Images can be transmitted to a database and associated with the patient by analyzing the images for a unique predetermined metric.

Embodiments of the present disclosure relate to the field of shoe production. There provides a smart shoe which has an identification function. The smart shoe includes an upper, a shoe sole and a foot sole print recognition sensor disposed in the shoe sole; the foot sole print recognition sensor is configured to acquire foot sole print information of a user who wears the smart shoe.

Disclosed are devices and methods for collection, labeling and matching biological samples containing nucleic acid in conjunction with collecting at least one ridge and valley signature such as a fingerprint or footprint of an individual. Such devices and methods are used in forensic, human identification, paternity, tissue typing, and screening technologies to rapidly process an individual's identity, determine the identity of an individual along with the genotype profile of the individual.

Disclosed are devices and methods for collection, labeling and matching biological samples containing nucleic acid in conjunction with collecting at least one ridge and valley signature such as a fingerprint or footprint of an individual. Such devices and methods are used in forensic, human identification, paternity, tissue typing, and screening technologies to rapidly process an individual's identity, determine the identity of an individual along with the genotype profile of the individual.

Certain aspects of the disclosure are directed to a weighing scale including a platform, data-procurement circuitry, processing circuitry and foot-controlled user interface (FUI). The processing circuitry is electrically integrated with the data-procurement circuitry to process data obtained by the data-procurement circuitry while the user is standing on the platform and therefrom generate cardio-related physiologic data. The FUI provides data to the user while the user is standing on the platform and receive a foot-based user input from the user for the user to interact with the weighing scale.

Certain aspects of the disclosure are directed to a weighing scale including a platform, data-procurement circuitry, processing circuitry and foot-controlled user interface (FUI). The processing circuitry is electrically integrated with the data-procurement circuitry to process data obtained by the data-procurement circuitry while the user is standing on the platform and therefrom generate cardio-related physiologic data. The FUI provides data to the user while the user is standing on the platform and receive a foot-based user input from the user for the user to interact with the weighing scale.

Disclosed are devices and methods for collection, labeling and matching biological samples containing nucleic acid in conjunction with collecting at least one ridge and valley signature such as a fingerprint or footprint of an individual. Such devices and methods are used in forensic, human identification, paternity, tissue typing, and screening technologies to rapidly process an individual's identity, determine the identity of an individual along with the genotype profile of the individual.

Disclosed are devices and methods for collection, labeling and matching biological samples containing nucleic acid in conjunction with collecting at least one ridge and valley signature such as a fingerprint or footprint of an individual. Such devices and methods are used in forensic, human identification, paternity, tissue typing, and screening technologies to rapidly process an individual's identity, determine the identity of an individual along with the genotype profile of the individual.