In examples, a relative skin reflectance of a captured image of a subject is determined. The determination selects from the captured image pixels of the subject's face and pixels in the background and normalizes luminance values of the skin pixels using the background pixels. The relative skin reflectance value is determined for the captured image, based on the normalized luminance values of the skin pixels. Optionally the relative skin reflectance value is qualified, based on thresholds of skin reflectance values, as suitable for biometric use. Optionally, a non-qualifying captured image is flagged and, optionally, another image is acquired, or the non-conforming image is processed further to transform the image into a suitable image for biometric analysis.

A head-mounted display system and a 6-degree-of-freedom tracking method and apparatus thereof are disclosed. The method includes: controlling two channels of tracking cameras so that central moments of exposure durations of each frame of the two channels of tracking cameras are same, and controlling so that a lightening moment of the LED lights on the handle controller is synchronized with the middle moment of the exposure duration of an even-number frame of the two channels of tracking cameras; calculating 6-degree-of-freedom tracking data of the head-mounted display device in a three-dimensional space in real time according to acquired image data of an odd-number frame of the two channels of tracking cameras; and calculating 6-degree-of-freedom tracking data of the handle controller in the three-dimensional space in real time according to acquired image data of an even-number frame of the two channels of tracking cameras.

An object recognition system of the present disclosure includes: a light source section that irradiates a subject with dot light having a predetermined pattern; an event detection sensor that receives the dot light having the predetermined pattern reflected by the subject and detects, as an event, that a change in luminance of a pixel exceeds a predetermined threshold; and a signal processor that performs, in a case where a plurality of successive pixels in a pixel array section of the event detection sensor detects occurrence of an event in a certain period, processing of removing the event as noise, the plurality of successive pixels being equal to or greater than a predetermined number of pixels.

The present invention relates to a uterine cervical image acquisition apparatus which acquires and displays images of a uterine cervix, and in some cases can automatically diagnose the onset of a disease related to the uterine cervix, the apparatus being characterized by comprising: a main body in which a camera for acquiring uterine cervical images is installed on one side, a user interface for displaying the uterine cervical images and inputting user touch commands is installed on the opposite side, and a handlebar unit is formed in a downward direction; a light source unit which emits light toward the front of the main body; a battery which is positioned inside the handlebar unit to supply power for charging and operation; an operation button unit which includes at least an image capturing button, a zoom-in button, and a zoom-out button formed on the handlebar unit; a memory for storing the captured uterine cervical images; a communication unit for transmitting the uterine cervical images to a reading computer; an image transmission control unit for controlling to store the captured uterine cervical images in the memory, encrypt selected uterine cervical images, and transmit the encrypted images to the reading computer; a display screen control unit which controls to display, on the left and right or above and below the captured uterine cervical display images, a menu bar for receiving the user touch commands; and a camera control unit which controls zooming and auto-focusing of the camera and the brightness of the light source unit according to operations of the provided button.

Described herein is a method (800) and system for controlling one or more illumination devices in an eye tracker system (100) such that a measured pupil/iris contrast exceeds a predefined minimum pupil/iris contrast. The method (100) includes: a. capturing images of a subject (102), including one or both of the subject's eyes, during predefined image capture periods; b. illuminating, from one or more illumination devices (108 and 110), one or both of the subject's eyes during the predefined image capture periods, wherein at least one illumination device (108 and 110) is located sufficiently close to a lens of the camera to generate bright pupil effects; and c. selectively varying the output power of at least one of the illumination devices (108 and 110) to generate a bright pupil reflection intensity such that a measured pupil/iris contrast in a captured image exceeds a predefined minimum pupil/iris contrast.

An electronic device and a high dynamic range (HDR) image generation method therefore are provided. The electronic device includes an image sensor and a processor, wherein the processor can be configured to adjust the exposure of the image sensor so as to acquire a first image having a first brightness and a plurality of second images having a second brightness, perform, on the first image, brightness conversion and noise attenuation of at least a first intensity so as to provide a third image having the second brightness, and generate a second HDR image on the basis of the first image and the third image, and generate a second HDR image on the basis of the first HDR image and the plurality of second images.

A system comprises a computer having a processor and a memory, the memory storing instructions executable by the processor to obtain, while an adaptive cruise control feature of a vehicle traveling a roadway is set to operate in a standard operation mode, lighting condition data for an on-board camera of the vehicle, determine, based on the lighting condition data, whether the on-board camera is subject to a lighting-compromised condition, and responsive to a determination that the on-board camera is subject to the lighting-compromised condition, cause the adaptive cruise control feature to operate in a modified operation mode, wherein during operation in the modified operation mode, the adaptive cruise control feature operates in accordance with one or more modified operating parameters.

An apparatus that is capable of displaying a good live view image even during continuous emission photographing. The apparatus includes a sensor, a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to obtain a display image cyclically using the sensor, and obtain a flash control image accompanied with a pre-emission of a first flash unit using the sensor at a non-accumulation timing at which the sensor does not perform charge accumulation for cyclic obtainment of the display image.

Some embodiments of the present disclosure present methods and systems for remotely capturing an image of an eye of a user via a user interface bidirectionally linked to a remote server that is configured to anonymize data communicated from the user device. In some embodiments, a user device may activate its camera after receiving a request at the user interface from the remote server. Further, the user interface may determine a zoom level for the camera to capture the image of the eye of the user facing the camera and capture the image based on the determined zoom level. In some instances, the user device may transmit the data including the captured image to the remote server via an encrypted bi-directional communication link.

An image capturing apparatus communicates with a strobe device used for image capturing and acquires preliminary light emission result information performed by the strobe device. A light control process for determining a light amount of main emission by the strobe device for main image capturing is executed based on the acquired preliminary light emission result information. In a case where an image capturing frequency for repeating image capturing is higher than a threshold value, information which is different from information on the light amount of main emission and is used for settings of preliminary light emission or main light emission is communicated by dividing the information into information acquired by a first communication processing before preliminary light emission and information communicated by a second communication processing after preliminary light emission.