Abstract:
The invention provides a time-division multispectra detection device and method. The time-division multispectra detection device includes a plurality of light-emitting units of different wavelengths sequentially activatable by a control unit to emit one same wavelength of light onto an object at one same time. When one light-emitting unit is activated, the control unit synchronously activates the digital image sensing unit to obtain an image data of the object corresponding to one single wavelength of light from one respective light-emitting unit. After every spectrum image data is collected. A judgment of the human physiological characteristics of the object is performed, effectively reducing the overall costs.
Abstract:
A method for identifying and determining a physiological characteristic using invisible light includes the steps of: respectively activating at least two light-emitting units to emit an invisible light onto a human body to be detected in such a manner that only one light-emitting unit is activated at a time wherein each of the at least two light-emitting units is configured to emit a different wavelength of invisible light, then capturing a real-time image signal from the human body corresponding to the invisible light emitted by each light-emitting unit and reflected by the human body, and then analyzing each real-time signal and defining a skin area according to the analysis result, and finally calculating the change of reflected light intensity of the skin area to obtain a measured value corresponding to the physiological characteristic of the human body.
Abstract:
A user login method and system capable of analyzing user face validity is disclosed to request the user provide a digital authentication information containing the username and password and to simultaneously capture the user face instant video streaming, and then to analyze and obtain the valid physiological characteristic information of the user face instant video streaming, and then to get the valid face image from the captured user face instant video streaming, and then to output the valid physiological characteristic information, the valid face image and the digital authentication information for use as valid login credentials, improving the authenticity and accuracy of the login credentials.