36 results about "High level vision" patented technology

A processor device having electronic endoscopes having different number of pixels of CCDs is provided with a DVI circuit for generating a digital video signal of display standard of a personal computer, etc. and outputting it as a differential signal, and a high vision system converter is connected to and arbitrarily removed from the output side of the DVI circuit. In the high vision system converter, a video signal having different number of pixels is electronically scaled to a number of display pixels of, for example, an SXGA standard by detecting the number of pixels of the input digital video signal, and is displayed on a high vision screen. Thus, the resolution of the image of the CCD can be maintained.

A lens, system and/or method for providing custom ocular aberrations for enhanced higher visual acuity. Scaled versions of a patient's aberration pattern may either attenuate or amplify the overall amount of ocular aberrations, to either correct or partially correct a patient's aberrations leading to enhanced visual acuity and/or extended depth of focus. This may be binocularly applied in order to provide high visual acuity in a patient at least at near, far and intermediate distances. The method may include obtaining an optimized binocular summation of both eyes of the patient; designing a first lens solution to correct or partially correct the dominant eye's aberrations according to an attenuated scaled version of a patient's ocular aberrations in the dominant eye; and designing a second lens solution to provide an additional customized extension of depth of focus by the induction of scaled patterns of ocular aberrations in the non dominant eye.

The invention relates to glasses beneficial to amblyopia recovery. Each pair of glasses comprises a glasses frame, a bridge of the nose, glasses legs and glasses lenses, wherein luminous bodies are arranged at the glasses frame, the bridge of the nose and the glasses legs, and one glasses leg is provided with an adjusting switch while the other glasses leg is provided with a battery placing chamber and a power charging hole; the angle between the glasses frame and each glasses leg can be freely adjustable within a range of 0-180 degrees, and caulking grooves used for assembling the glasses lenses are formed in the lower edge of the glasses frame; the glasses lenses can be embedded into the caulking grooves and fixed on the glasses frame, and a controller, which is used for controlling the luminous bodies or the glasses lenses to light or extinguish in sequence according to a procedure, is arranged on the bridge of the nose; the luminous bodies, the glasses lenses, the controller, a battery and the adjusting switch are connected through a flexible circuit board, the glasses lenses adopt liquid crystal glasses lenses set by an electronic program, and the liquid crystal glasses lenses is adjustable in luminosity, covering time and covering time interval according to the different degrees of amblyopia eyes. The glasses beneficial to amblyopia recovery and an application method thereof have the advantages of being beneficial to improving visual fatigue and eyesight.

The invention comprises: a image memory 1, a component for executing the high level vision 2, a basic polygon transform component 3, an orthogonal location transform component 4, a free difference operation component 5, a target outline extracting component 6, and an energy function minimizing component 7.

The invention provides a vision test prompting method and wearable equipment. A sighting mark corresponding to a preset vision level is output and displayed in a screen of the wearable equipment; since the preset vision level, the ideal distance and the size of the sighting mark have the corresponding relationship, the ideal distance is determined based on the preset vision level, and the practical distance between a user and the screen is tested; and when the practical distance is inconsistent with the ideal distance, prompt information is output to require the user to adjust the distance, so that the independent vision test without the help of others can be realized. The distance of the user can be adjusted according to the relationship between the practical distance and the ideal distance, and the sight distance between the sight of the user and a depth-of-field camera of the wearable equipment can also be adjusted, so that the vision testing accuracy is further improved.

The invention relates to a vision detection method, system and device. The method comprises the following steps: obtaining a pre-stored electronic visual chart, and enabling the electronic visual chart to be displayed in a terminal and a display screen; obtaining a sighting mark selected by a detector from the electronic visual chart of a terminal, and marking the sighting mark in a display screen; obtaining a reply result of a tester to the marked sighting mark in the display screen; judging whether the reply result of the tester is the same as the selected sighting mark or not; and performing the next round of detection according to a detection mechanism until the detection is finished, and outputting a detection result. The vision testing efficiency can be improved, and the labor intensity of an operator is reduced. The device automatically judges the test result, improves the accuracy, and avoids manual judgment errors.

The invention relates to an eyesight detector, and comprises an eyesight test device connected with a test head hoop and a signal transmitting device; the test head hoop comprises a spectacle frame, and a distance-measuring sensor transmitting module arranged on the spectacle frame and eyeglasses rotationally connected with the spectacle frame; the signal transmitting device includes a key moduleand a signal transmitting module electrically connected with a first microcontroller; and the eyesight test device includes a magnetic levitation base and an optotype box levitated above the magneticlevitation base through magnetic force; and the optotype box includes a second microcontroller arranged in the box, a distance-measuring sensor receiving module electrically connected with the secondmicrocontroller, a signal receiving module, an LED indicator set and a data transmission module. The eyesight detector provided by the invention can improve the efficiency of eyesight detection, reduce the workload of medical staff, and meet the requirements of actual application .

The utility model relates to a therapeutic instrument, which is simple in structure and can gradually improve vision by long-term staring training of eyes in or out of a distance of distinct vision ofeyes, for correcting myopia by naked-eye staring. The therapeutic instrument is placed in a vertical or horizontal posture on a desktop beyond the near point of the eyes of a staring person or hung on a wall beyond the near point of the eyes of the staring person. A light window is arranged on the front of a shell, and a rear-stage reflector capable of clearing imaging character patters on an object space target plate in such a manner that the size of the aperture angle entering the pupils of the staring person is adjustable and located in the near point position of the eyes of the staring person and reflecting out of the shell via the light window is arranged in the position, opposite to the light window, of the shell. The myopic patient can use the therapeutic instrument, under the condition of relaxation of ciliary muscle, the ciliary muscle is trained by adjusting the size of the aperture angle of images in human eyes stage by stage, and the ciliary muscle of myopia can recover to original adjusting capacity after long-term training.

The invention discloses a visual chart suitable for a clinical test and a use method of the visual chart. The optotype size, the geometric increase rate, the line number, the optotype spacing and the line spacing of the visual chart all adopt international standards, and the innovation point is that each row of optotypes of an optometry chart (chart R) is composed of a C optotype with a gap and four rolling E optotypes. Each of the two optotypes has upward, downward, leftward and rightward orientations. The standardized operation specifications of the ETDRS visual chart and ETDRS optometry are gold standards of international clinical drug trials. On the basis of the rolling E optotypes commonly used by Chinese people, the combination of the two optotypes is provided in the newly designed optometry chart, namely, one C optotype exists in each row of rolling E optotypes, so that the requirements of identification and expression habits of Chinese people are better met during use, meanwhile, qualitative and quantitative measurement and verification of the axial direction and the degree of astigmatism of a subject can be performed, and the vision detection efficiency and accuracy can be improved.

The invention provides a lens group structure for vision detection, and belongs to the technical field of computer algorithms. The lens group structure for vision detection comprises a support, a connecting sleeve, a first lens, an adjusting sleeve and a second lens. The first lens is mounted on the inner side of one end of the connecting sleeve. The adjusting sleeve is in threaded connection withthe other end of the connecting sleeve, and a first limiting piece is arranged on the inner wall of the adjusting sleeve. One side of the second lens abuts against the other end of the connecting sleeve, and the other side of the second lens abuts against the first limiting piece. The first limiting piece is used for being matched with the connecting sleeve to adjust the curvature of the second lens. The outer edge of the second lens and the inner wall of the connecting sleeve are spaced from each other by a certain distance. The first lens, the connecting sleeve and the second lens form a light-transmitting area. The first lens and the second lens form a lens assembly. The lens assembly adjusts the diopter by means of the first limiting piece. The invention further provides a vision detection method. According to the lens group structure for vision detection and the vision detection method, the vision detection efficiency can be improved.

The invention relates to the technical field of vision training and in particular relates to a vision recovery training instrument and a working method thereof. The vision recovery training instrumentcomprises an image scene component, an imaging component and a view window, wherein the view window is used for observing an image of the image scene component through the imaging component; the imaging component is internally provided with a light source; and the light source is suitable for scintillation so that the image is alternately bright and dark. By adopting the vision recovery traininginstrument provided by the invention, the image of the image scene component is observed through the view window, while the image of the image scene component is observed, human eye blink is simulatedthrough light source scintillation in the imaging component, then eye ciliary muscle can be stimulated, vision organs can continuously adjust mechanisms of selves through training, and thus the purpose of correcting or even substantially treating myopia or poor eyesight can be achieved; and in addition, due to adoption of the imaging component of the vision recovery training instrument, basic situations of vision of a user can be primarily understand, bases can be provided for vision training, vision training can be specific, and the vision training effect can be improved.

The invention provides a self-service vision detection method and device and a computer readable storage medium. The method comprises the steps of: prompting a driver to sit at a designated position; judging whether a violation operation exists or not, and if yes, terminating vision detection; if the violation operation does not exist, proceeding to the next step; detecting a distance from the driver to a screen, and adjusting a visual chart to carry out zooming display according to the distance; prompting the driver to shield a specified eye; judging whether eye shielding is correct or not, if yes, proceeding to the next step, and if not, prompting the driver to shield the eye again; and prompting the driver to answer the question, and judging the vision level of the driver according to a case whether the answer is correct. According to the invention, cheating can be intelligently prevented by adding the illegal operation judgment step and the eye shielding correctness judgment step. By adjusting the zooming of the visual chart according to the distance, the vision detection precision can be improved. The vision detection method is automatically operated in the whole process, and the labor cost is saved.

The invention provides a vision dynamic detection and early warning method, and is applied to a vision detection device, the vision detection device is connected to the Internet of Things, and the method comprises the following steps: starting the vision detection device, detecting environmental conditions, detecting man-machine distance, and displaying vision marks on a display screen according to a conversion proportion; a user inputs a remote control value through the remote controller, and the vision detection device judges the accuracy according to the input remote control value; the size of the vision mark icon is changed according to the accuracy of the remote control value; after vision detection is finished, a detection numerical value is calculated and stored according to a vision detection standard distance formula, and then a data statistics interface is entered; recent vision detection values are counted, an oscillogram is drawn, and changes of the vision values and historical data are judged to give an early warning; compared with the prior art, the method has the advantages that the constraint of fixed-distance detection can be broken through, the application range of vision detection is widened, and the early warning effect of early warning in time and early warning for preventing unhappened myopia can be achieved through long-term detection tracking and vision change trend analysis.

The invention discloses a vision training method for improving vision. The vision training method comprises the following steps of inputting a basic vision training scheme; collecting vision information of a user and obtaining body function information of the corresponding user; generating initial vision training information according to the vision information of the user, the body function information of the user and the basic vision training scheme; acquiring real-time vision information of the user after initial training; and according to the real-time vision information and the basic vision training scheme, adjusting the initial vision training information, and generating vision training adjustment information. The invention relates to the technical field of visual training correction. According to the method, multiple fields and human body functions are combined for targeted human body vision training, and the vision of people is effectively improved.

The invention relates to a vision detection system and detection method. The method comprises the following steps: obtaining a pre-stored electronic visual chart, and displaying the electronic visual chart in a display screen; selecting one sighting mark in the display screen, and marking the sighting mark in the display screen; obtaining a reply result of the tester to the marked sighting mark in the display screen; judging whether the reply result of the tester is the same as the selected sighting mark or not; and performing the next round of detection according to a detection mechanism until the detection is finished, and outputting a detection result. The vision testing efficiency can be improved, and the labor intensity of an operator is reduced. The system automatically judges the test result, improves the accuracy, and avoids manual judgment errors.

The embodiment of the invention discloses a password input method and device, a controller and a computer storage medium. When a voice password input mode triggered by a user is received, a password feedback mode is switched into a voice broadcast mode; when an input instruction triggered by a user is received, voice broadcast on the element content corresponding to the input instruction is carried out; when a confirmation instruction triggered by the user based on the input instruction is received, voice broadcast is carried out on the element content corresponding to the confirmation instruction again; and password is input based on the element content corresponding to the confirmation instruction. In this way, the password input success rate and efficiency of the user with poor eyesightare improved.

The invention relates to the technical field of intelligent image processing, in particular to a vision detection method and system, a vision detection all-in-one machine and a storage medium, and aims to solve the problem that in the prior art, the efficiency is low when a paper standard logarithmic visual chart is adopted to judge the vision of a detected person. Comprising the steps of obtaining identity information of a tested person; randomly highlighting test icons in a preset test icon library step by step on the basis of a preset vision detection rule; obtaining direction indication information of the testee, and judging the indication direction of the testee based on the direction indication information; when the indication direction is inconsistent with the indication direction corresponding to the test icon, stopping highlighting the test icon; and outputting a vision detection result of the testee, the vision detection result being a vision value of the previous level when highlighted display of the test icon is terminated, and the method and the device have the effect of improving the efficiency of vision detection work.