203results about How to "Reduce dizziness" patented technology

The invention relates to VR positioning and tracking technology field, in particular to an ultra-wideband positioning based VR positioning and tracking system and its positioning and tracking method. The system comprises three or more ultra-wideband positioning base stations, and is characterized by comprising VR basic equipment and a basic VR runtime. Each ultra-wideband positioning base station comprises a base station code ID generation unit, a time synchronization unit, a data processing unit, an ultra wideband (UWB) transceiver, a high accuracy clock, an antenna and a network data transmission unit. The VR basic device includes a display screen, a processor, a direction sensor, a VR and a controller connecting line, a battery, a lens and an ultra wide band (UWB) positioning module. The UWB positioning module comprises the antenna, the ultra-wideband (UWB) transceiver and the high accuracy clock. The basic VR runtime includes an image processing unit, a positioning engine and an image transmission unit. According to the invention, the problem of dizziness caused by the uncertain positioning of a VR device and the long-term use of the device can be well addressed.

The invention relates to a method for head attitude compensation. The method comprises: according to display time of at least two rendered image frames, predicting rendering completion time t1 of a to-be-displayed image frame; according to the t1, calculating display start time t2 of the to-be-displayed image frame; according to the t2, calculating first time, predicting a first time head attitude Q, according to the head attitude Q, rendering the to-be-displayed image frame; according to start time a of any completed display cycle, calculating start time t of a to-be-displayed cycle; according to the t and the display cycle T, calculating second time, to obtain a second time head attitude Q', and according to the Q and the Q', calculating a head attitude compensation matrix; according to the attitude compensation matrix, performing attitude compensation calculation on the to-be-displayed image frame; according to vertex coordinates after attitude compensation and vertex coordinates of the to-be-displayed image frame, calculating a correction coefficient; and according to the correction coefficient, calculating a display image frame after the head attitude compensation. The method and the device accurately compensate head attitude of the to-be-displayed image frame, so that smear phenomenon and dizzy feeling in VR system use are reduced.

The invention discloses a 3D camera with a lens group capable of synchronous automatic expansion and contraction. The 3D camera includes a lens group formed by two or more lenses; a motor used for driving the lenses to move so as to carry out focusing; and a controller used for sending out control signals so as to control the motor to operate, wherein the number of the motor is one and the motor is capable of driving the two or more lenses to move synchronously under the control of the controller so as to carry out focusing. In the 3D camera, the lens group is controlled to synchronously and automatically expand and contract through one motor so that synchronous automatic focusing of the lens group is realized and thus time spent on manual focusing of a common lens group can be reduced and focusing precision is improved and the picture effect is more true to life.

The present invention provides a display method and apparatus. The method comprises the following steps of: determining a rendering speed of scene rendering; Judging whether to start an asynchronous time distorted ATW thread according to the rendering speed; When the ATW thread is judged not to be started, obtaining the first scene data in a frame picture display process by using a rendering thread; when the first scene data rendering is determined to be completed, running the rendering thread to correct the first scene data and obtain the first modified scene data; displaying according to thefirst correction scene data. The embodiment of the invention gives consideration to the performance of different processors and the complexity of VR application scene, the phenomenon of picture jitter can be reduced, the sense of vertigo of the user can be alleviated, the system power consumption can be reduced, the delay between scene rendering and display can be reduced, and the user experiencecan be improved.

The invention discloses a medicament for treating nasal sinusitis, wherein the composition comprises (by weight portion) buck grass, black plum, and chrysanthemum flower by the proportion of hairy vein agrimony 1 part, prepared dark Japanese plum 0-0.2 part, chrysanthemum flower 0-0.2 part.

The invention discloses an image processing method, an image processing device and a display device, relates to the technical field of image processing, and aims to improve the utilization efficiencyof a graphic processor and reduce the delay of a VR image displayed by VR display equipment. The image processing method comprises the steps of counting the rendering duration of M frames of images; judging whether the rendering duration of the M frames of images is matched with a motion attitude requirement or not; if yes, controlling the difference value t between the rendering starting moment of each frame of image and the distortion processing starting moment of the corresponding frame of image to be smaller than or equal to a preset difference value taim; itherwise, setting a system framefrequency, and enabling the rendering duration of each frame of image to be matched with the motion attitude requirement. The image processing device comprises the image processing method. The imageprocessing method, the image processing device and the display device are used for image processing.

Disclosed are medicinal liquor and preparation technology. Raw materials of the medicinal liquor comprise 67 kinds of traditional Chinese medicinal materials. According to the preparation technology of the medicinal liquor, full extraction of effective constituents of the original medicinal materials can be guaranteed. Tastes of the medicinal liquor are improved. The medicinal liquor has the advantages of being pure, mild and soft. Technology of igniting liquid medicine and reducing alcohol content in a bronze tripod is adopted, thus micromolecule organic substances volatilize and burn. Harmful effects of the substances on the function of a human body are reduced. Buried technology of pottery-jar containing the liquid medicine is adopted, various probiotics and functional materials are formed through the fermentation of the medicinal liquor, and thus a unique odor type and a special flavour are formed.

The embodiment of the invention provides a display control method, a display control device, a computer readable medium and virtual reality equipment, and relates to the technical field of display. The display control method comprises the steps of obtaining a human eye fixation point coordinate; determining a gaze area of a display panel according to the human eye gaze point coordinates; applyinga gate scan signal to the gaze area at a first frequency, applying a gate scan signal to other areas of the display panel other than the gaze area at a second frequency, and the second frequency is lower than the first frequency. According to the technical scheme of the embodiment of the invention, the scanning speed of the display data can be improved, so that the dizziness caused by hysteresis is reduced.

The present disclosure discloses an anti-dizziness method and apparatus for use in a virtual reality system. The method comprises: deploying a user interface in an arcuate layout manner in an immersive environment; and setting an interface element self-defining interface for a user to adjust content and number of interface elements in the user interface exactly facing to human eyes according to the user's needs. The user interface is deployed in an arcuate layout manner so that the interface element is exactly facing to the user's sight line when the user views any one interface element, and the distance from each interface element to the human eyes is equal, so this may provide a better visual experience to the user so that the user is not apt to fatigue and free of dizziness; furthermore, the user is provided with an interface element self-defining interface, so that the user may adjust content and number of interface elements in the user interface exactly facing to human eyes according to his own needs, and dizziness caused by frequent head turning is avoided.

The invention relates to an augmented reality display method and apparatus, an augmented reality device, and a storage medium. The actual distance of an object in a real scene is obtained by sound waves, and the focal length of a camera device is adjusted in real time according to the actual distance of the object. A real-time image of the real scene collected by the camera device with the focal length adjusted in real time is obtained, augmented reality AR processing is performed on the real-time image of the real scene collected by the camera device, and the image subjected to the augmentedreality AR processing is displayed. When a user wearing the augmented reality device is in a moving or rotating state, since the real scene changes, the actual distance of the object in the real sceneis obtained, so that the focal length of the camera device can be adjusted in real time via the obtained actual distance of the object in the real scene, the camera devices performs zooming quickly to capture clear images in real time, the delay problem caused by the automatic zooming setting of the camera is avoided, and the spinning sensation generated by the user in use is reduced as well.

The invention discloses a head-up display device for remote image displaying. The head-up display device comprises an image projection module, a reflective diffusion sheet and a concave mirror module.On the basis of cooperation of the reflective diffusion sheet and the concave mirror module, the reflection distance is increased to obtain a long optical path distance. A virtual image at a long projection distance can be obtained under the same concave mirror amplification factor, so that the visual dizzy feeling of the driver is reduced and the optimal visual effect is obtained and thus the driving safety is enhanced.

The invention relates to the technical field of virtual reality, and discloses an image display method of virtual reality glasses, equipment and a terminal. The embodiment of the invention provides the image display method of the virtual reality glasses. The method comprises the steps of receiving a first distance, wherein the first distance is related to a pupil distance of a user; displaying a left image and a right image with the first distance as a center distance of the left image and the right image, wherein the center distance is the distance between a center point of the left image and a center point of the right image. The embodiment of the invention further provides a device and the terminal corresponding to the image display method of the virtual reality glasses. According to the image display method of the virtual reality glasses, the equipment and the terminal, on the premise that no extra hardware cost is added to the virtual reality glasses, spinning sensation of wearing the virtual reality glasses is reduced, and the visual effect of the virtual reality glasses is improved.

The invention relates to the field of robots, in particular to an autonomous mobile cruise and control robot. The robot comprises a driving device, a panoramic stereoscopic camera shooting tripod head, an environment detection device mounting base, a remote operation controller and two mounting platforms, wherein the two mounting platforms are arranged above the two ends of the length direction ofthe driving device through first damping buffering mechanisms correspondingly, the two first damping buffering mechanisms are arranged at the two ends in the length direction of the driving device correspondingly, the top of each first damping buffering mechanism is hinged to the corresponding mounting platform, the panoramic stereoscopic camera shooting tripod head and the environment detectiondevice mounting base are arranged on the two mounting platforms correspondingly through second damping buffering mechanisms, each second damping buffering mechanism is fixedly arranged at the upper end of the corresponding mounting platform, and the remote operation controller controls the driving device and the panoramic stereoscopic camera shooting tripod head. According to the robot, people canbe replaced for exploration detection and MR stereoscopic video acquisition, and people with a head-mounted MR display helmet can observe a scene shot by the robot at a long distance, and the MR is driven through the head action to adjust the shooting direction of the robot.

The invention discloses a display device and method based on human eye tracking. The display device based on human eye tracking comprises a lens cone, a display screen, a lens group and a processing unit, and the lens cone is provided with a through cavity; the display screen is arranged at one end of the lens cone in the through direction of the through cavity; the lens group is disposed at another end of the lens cone in the through direction of the through cavity, and the lens group is used for enabling a human eye to observe the display screen; the lens group includes a photographing partfor photographing a pupil of the human eye; the photographing part is electrically connected to a processing unit; and the processing unit is used for receiving a display image photographed by the photographing part, analyzing the display image to obtain the moving angle of the human eye, and adjusting the resolution of the display image according to the moving angle. According to the technical scheme, the problems of visual fatigue and dizziness can effectively solved when people wear virtual products.

The invention discloses a reality augmenting device, system and method. The device comprises a device body and an image collecting module, a wireless communication module and a reality augmenting module which are installed on the device body; by arranging the wireless communication module to interact with a server, no processing module needs to arranged on the device body, and therefore the problem that a user has a spinning sensation due to the long time delay of a virtual image and a real image due to the fact that the computing power of a mobile terminal is limited is avoided. Meanwhile, the reality augmenting device is large in application range, and the device can be widely used for identity recognition, vision augmenting, shortsightedness correction and various other reality-based augmented reality scenes.