Abstract: An authentication system controlled by eye open and eye closed state and a handheld control apparatus thereof are provided. The handheld control apparatus includes a housing case, an image capturing unit and a processing unit. The housing case has a window and is suitable for a user to hold. The image capturing unit is disposed in the housing case and captures an eye area of the user through the window to obtain an image sequence. The processing unit is coupled to the image capturing unit and analyzes the image sequence to obtain eye image information of the eye area of the user. The processing unit detects an eye-open state and an eye-closed state of the user based on the eye image information, converts a plurality of the eye-open states and the eye-closed states into a blink code, and accordingly generates a control command to control a security equipment.

Abstract: A method and an apparatus for detecting blink are provided. After obtaining an eye image sequence of a user, a currently analyzed image and a previously captured image are obtained from the eye image sequence and reflective regions of the currently analyzed image and the previously captured image are filtered, wherein the brightness values of pixels included in the reflective regions are higher than a brightness threshold. Difference pixel amount between the currently analyzed image and the previously captured image is calculated so as to determine whether the user blinks according to the difference pixel amount.

Abstract: A method and an apparatus for detecting blink are provided. After obtaining an eye image sequence of a user, a currently analyzed image and a previously captured image are obtained from the eye image sequence and reflective regions of the currently analyzed image and the previously captured image are filtered, wherein the brightness values of pixels included in the reflective regions are higher than a brightness threshold. Difference pixel amount between the currently analyzed image and the previously captured image is calculated so as to determine whether the user blinks according to the difference pixel amount.

Abstract: An authentication system controlled by eye open and eye closed state and a handheld control apparatus thereof are provided. The handheld control apparatus includes a shell, an image capturing unit and a processing unit. The shell has a window and is suitable for a user to hold. The image capturing unit is disposed in the shell and captures an eye area of the user through the window to obtain an image sequence. The processing unit is coupled to the image capturing unit and analyzes the image sequence to obtain eye image information of the eye area of the user. The processing unit detects an eye-open state and an eye-closed state of the user based on the eye image information, converts a plurality of the eye-open states and the eye-closed states into an blink code, and accordingly generates a control command to control a security equipment.

Abstract: A drowsiness warning device includes a storage unit storing a drowsiness warning program, an image capturing unit, a processing unit and an output unit. The processing unit loads and processes the drowsiness warning program and the drowsiness warning program enables the processing unit to perform steps comprising: receiving a sequence of images captured by the image capturing unit; performing an image analyzing step to each of the images; performing a determining step based on results of the image analyzing step to determine if a driver is drowsy; and driving the output unit to create a warning message if the determining result shows that the driver is drowsy. The image analyzing step includes analyzing a degree of curvature of an upper eyelid in each of the images.