17 results about "Human eye" patented technology

An eyepiece includes a focusing apparatus for positioning the area perceived as in focus by the relaxed human eye and for correcting axial ametropia of an eye of a user of the eyepiece and a correction apparatus for adjustable correction of an astigmatism of an eye of a user of the eyepiece.

The invention discloses a safety depth jumping adjustment method for the shot switching position in a three-dimensional (3D) program. The safety depth jumping adjustment method comprises the steps of first calibrating a shot boundary, obtaining depth jump values between shots at the position of a shot boundary on the basis of screen depth change characteristics of interested content areas on two sides of the shot boundary, and judging whether depth jump between the shots causes discomfort of human eyes according to a maximum bearable depth jump value; performing depth adjustment on boundary images of a front shot and a rear shot through a three-dimensional image tilt-shift parallax adjustment method according to the maximum safety speed of depth gradual change adjustment, and converting depth jump at the position of the shot boundary into depth gradual change. The maximum bearable depth jump value with watching condition factors removed under shot switching and the maximum depth gradual change adjustment speed of a single scene are stipulated, and by detecting the influence of depth jump of stereoscopic video shot switching on three-dimensional comfortable watching, discomfort caused to stereoscopic watching of the human eyes and caused by stereoscopic video shot switching can be effectively avoided.

A method of generating a gain of an image frame according to a look up table of gain which is set up based on luminance sensitivity of human eyes is proposed. The method includes setting a gain of an image frame to 1, scanning images of a plurality of front rows of the image frame, averaging the images of the plurality of the front rows of the image frame to generate an average value of the images of the plurality of the front rows of the image frame, finding a gain from the look up table of gain according to the average value of the images of the plurality of the front rows of the image frame, and adjusting remaining rows of the image frame according to the gain to generate images of the remaining rows of the image frame.

The invention relates to an abnormal lamp point processing method after the correction of an LED display device, comprising the steps of: (a) obtaining correction coefficients of a plurality of LED lamp points of a target LED display device; (b) searching for LED lamp points having correction coefficients meeting preset conditions among the plurality of LED lamp points to be used as abnormal lamp points; (c) highlighting selected abnormal lamp points on the target LED display device and lightening a plurality of peripheral LED lamp points of a selected abnormal lamp point, wherein the selected abnormal lamp point is at least one from the searched abnormal lamp points in step (b); (d) determining whether the highlighted selected abnormal lamp points are real abnormal lamp points based on human vision, and adjusting correction coefficients of the selected abnormal lamp points to be a target correction coefficient if the highlighted selected abnormal lamp points are real abnormal lamp points; and (e) storing the adjusted correction coefficients of the selected abnormal lamp points to a target position. Accordingly, the abnormal lamp point processing method can more rapidly search for positions of abnormal lamp points, and improve abnormal lamp point processing precision.

The invention provides a video playing method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining video signals from a plurality of video sources; analyzing the video signals to obtain a plurality of video pictures corresponding to the plurality of video sources; according to the arrangement sequence of the video sources, playing the multiple video pictures in sequence, wherein the playing interval of the two adjacent video pictures from the same video source is smaller than the persistence duration of human vision. Because the human eyes have a vision persistence function, even if the video display equipment plays a plurality of video pictures from a plurality of video sources, the playing interval of two adjacent video pictures of the same video source is smaller than the vision persistence duration of the human eyes. Therefore, under the condition that the human eyes are controlled to only receive the video picture from the target video source, the user can normally watch the video picture from the target video source without feeling the lagging.

The invention discloses a control method applied to an electronic device. The electronic device comprises an iris recognition module, wherein the iris recognition module comprises an infrared light source and an infrared camera, and the infrared camera comprises an infrared image sensor. The control method comprises the steps of collecting a human face image; processing the human face image to recognize a human eye area; controlling the infrared light source to open when the infrared image sensor starts exposing with a row in which the human eye area is; and controlling the infrared light source to close when the infrared image sensor finishes exposing the row in which the human eye area is. The invention further discloses an electronic device and a computer readable storage medium. According to the control method, electronic device and computer readable storage medium, the infrared light source is opened when the infrared image sensor images the human eye area, and the infrared light source is closed or kept closed when the infrared image sensor does not image the human eye area, so that the power consumption of the infrared light source is lowered and the infrared light source is prevented heating.

The invention discloses a display panel and a display method thereof. The display method comprises the following steps: in response to a display operation of the display panel, obtaining the real-timedisplay frequency of a liquid crystal panel, and adjusting the backlight brightness of the backlight module according to the real-time display frequency so that the display brightness of the displaypanel can be kept within a target brightness range; obtaining the real-time display frequency of the liquid crystal panel and adjusting the backlight brightness of the backlight module according to the real-time display frequency in order to keep the display brightness of the display panel within a target brightness range, so that the problem that human eyes subjectively feel image flickering dueto different penetration rates of the liquid crystal panel under different display frequencies is avoided.

The embodiment of the invention provides a human eye position tracking-based head-up warning system, a method and a vehicle. The system involves an event detection device, a human eye detection device, a main controller and a head-up display device; the event detection device is used for detecting an abnormal event and calculating the position and the size of an event object generating the abnormal event; the human eye detection device is used for detecting the position where eyes of a driver look; the main controller is used for calculating the display position and size of an event object frame corresponding to the event object on a front windshield according to the position and the size of the event object, and the position where the eyes of the driver look; and the head-up display device is used for projecting the event object frame onto the front windshield. According to the human eye position tracking-based head-up warning system, the method and the vehicle, the event object needing driver attention is framed out in the form of the event object frame and projected onto the front windshield of the vehicle, so that the driver can intuitively know a person or object needing attention, and the driving intelligence and safety are improved.

The fingerprint acquisition method provided by the embodiment of the invention comprises the following steps: acquiring a pressed region of a display screen; determining an overlapping region of the pressing region and a fingerprint identification area of the display screen; and under the condition that the area ratio of the overlapping region to the fingerprint identification region is greater than a threshold value, controlling the overlapping region to be displayed at a first brightness, so that a fingerprint sensor located below the display screen collects a fingerprint in the overlappingregion. According to the fingerprint acquisition method provided by the embodiment of the invention, under the condition that the area ratio of the overlapping region to the fingerprint identificationregion is greater than the threshold, the overlapping region is controlled to emit light at the first brightness, so that a fingerprint sensor can acquire the fingerprint image for fingerprint identification; in addition, the light of the intersection region can be shielded to prevent the light of the intersection region from directly irradiating into human eyes, so that stimulation of the lightto human eyes is reduced, and user experience is improved.

The invention discloses a method for determining an optimal amplification effect of micro information based on human eye visual characteristics. The method specifically comprises the following steps:step 1, manufacturing target information with a certain size; 2, compressing the target information to form micro information, and finishing a micro information layer; Step 3, manufacturing a displaygrating, and finishing a micro information amplification effect; 4, according to the size of the target information, correcting the size of the display grating, and completing the micro information optimal amplification effect; And step 5, fitting the micro information height related to the optimal amplification effect of the micro information, the display grating distance and the amplification information height to a three-dimensional relational graph, and fitting a formula model. Based on human eye visual characteristics, the micro information amplification technology is optimized, and the practical operation and safety of anti-counterfeiting application are improved.

The invention discloses a shake display device and a display method thereof, which relate to the technical field of LED display. The shake display device comprises a shake switch, a display module, asingle chip microcomputer and a power supply. The single chip microcomputer is connected with the shake switch, the display module and the power supply. The display module is composed of 32 LEDs divided into four groups, and there are eight LEDs in each group. The frequency of the output signal is controlled by the single chip microcomputer. The current shake state is detected by a shake sensor. The overall on-off alternating display at different frequencies is realized by the 32 LEDs. In the whole use process, text and image information can be continuously output. Because of the vision persistence principle of the human eyes, a false vision plane will be generated in the LED shake area when the shake display device is shaking. Through LED frequency control by the system, images are generated in the shake area. Therefore, the function of conveying information in the vision plane is achieved.

The invention discloses a laser marking method safe for human eyes, which is characterized in that an all-fiber laser with the optical wavelength between 1.52 microns and 1.59 microns is provided, pulse laser is output by the all-fiber laser, the pulse laser is irradiated to a workpiece to be processed after being amplified and focused, and laser marking is realized through relative movement of a focusing position and the workpiece to be processed; wherein the pulse laser is composed of pulse trains, each pulse train comprises 2-6 pulses, the pulse width of each pulse is smaller than 10 picoseconds, the interval between every two adjacent pulses is smaller than 50 nanoseconds, one million to ten million pulse trains are included per second, and finally output single pulse energy is not larger than 100 nanojoule. The laser adopted by the invention has a high damage threshold to human eyes, and can be suitable for surface marking of metal materials, composite materials, transparent materials, organic materials and the like.

The invention discloses an AR-HUD/LCD omnidirectional target detection and display method based on human eye attention, and belongs to the technical field of automatic driving, automobile environment perception, and intelligent cabins. The method comprises the following steps: acquiring a face image of a driver through a monocular camera; calibrating the monocular camera to obtain an internal reference matrix and a distortion parameter of the camera; carrying out distortion removal and graying on the image to obtain a self-quotient image; extracting a face area through a face detector, and then extracting coordinates of left and right pupils in an image plane of the monocular camera; according to the pupil image plane coordinates and pupil distance constraints, solving driver eye position space coordinates used for AR-HUD/LCD virtual image display. A neural network is used for detecting changes of a face angle of a driver, a driver attention vector is obtained, a target is detected in a vehicle-mounted panoramic image or an omnidirectional radar system according to the attention vector, and a detection object in an attention vector area is displayed through AR-HUD/LCD. According to the invention, system computing resources are saved, and the real-time performance of the detection system is improved.

The invention provides an optical display system capable of meeting binocular watching, and belongs to the technical field of optical imagines.The optical display system comprises a displayer, a first optical lens, a second optical lens and a third optical lens, the first optical lens is arranged on a light-emitting path of the displayer, and the second optical lens is arranged on a light-emitting path of the displayer; the second optical lens is arranged on a transmission light path of the first optical lens, the third optical lens is arranged on a reflection light path of the second optical lens, the third optical lens comprises a third optical substrate and a total reflection film, and the total reflection film is arranged on one side of the third optical substrate; the device is compact in structure, small in size, light in weight, good in imaging quality, large in field angle range, capable of achieving simultaneous binocular watching, large in human eye movable range, capable of being matched with myopic users, capable of exercising the eyes, capable of protecting the eyes and capable of greatly improving the user experience.