629 results about "Visual function" patented technology

A multi-modal user interface method and system enabling a user of a cellular telephone being connected to a cellular network via both a voice connection and a data connection to receive a menu in both an audible manner and a visual manner, during the course of the call and substantially simultaneously.

A method and an instrument is provided for measuring aberration refraction of an eye with a first device for measuring the total aberration refraction of the eye and a second device for measuring the aberration refraction of the cornea of the eye. The component of aberration refraction caused by the lens caused by the lens is calculated using the measured total eye aberration refraction and the measured component of aberration refraction of the cornea mapped over the optical surfaces of the eye. Each component portion of the aberration refraction provides information usable for making appropriate corrective actions at the cornea, at the lens, or both as indicated by the mapped measurements and calculations.

The objective of the current invention is to restore color vision, in whole or in part, by electrically stimulating undamaged retinal cells, which remain in patients with, lost or degraded visual function. The invention is a retinal color prosthesis. Functionally, There are three main parts to this invention. One is external to the eye. The second part is internal to the eye. The third part is means for communication between those two parts. The external part has subsystems. These include an external imaging means, an eye-tracker, a head-motion tracker, a data processor, a patient's controller, a physician's local controller, a physician's remote controller, and a telemetry means. The imaging means may include a CCD or CMOS video camera. It gathers an image of what the eyes would be seeing if they were functional.Color information is acquired by the imaging means. The color data is processed in the video data processing unit. The color information is encoded by time sequences of pulses separated by varying amounts of time, and also with the pulse duration being varied in time. The basis for the color encoding is the individual color code reference. Direct color stimulation is another operational basis for providing color perception. The electrodes stimulate the target cells so as to create a color image for the patient, corresponding to the original image as seen by the video camera, or other imaging means.The physician's test unit can be used to set up or evaluate and test the implant during or soon after implantation at the patient's bedside.

The invention provides distributed cognitive technology for an intelligent emotional robot, which can be applied in the field of multi-channel human-computer interaction in service robots, household robots, and the like. In a human-computer interaction process, the multi-channel cognition for the environment and people is distributed so that the interaction is more harmonious and natural. The distributed cognitive technology comprises four parts, namely 1) a language comprehension module which endows a robot with an ability of understanding human language after the steps of word division, word gender labeling, key word acquisition, and the like; 2) a vision comprehension module which comprises related vision functions such as face detection, feature extraction, feature identification, human behavior comprehension, and the like; 3) an emotion cognition module which extracts related information in language, expression and touch, analyzes user emotion contained in the information, synthesizes a comparatively accurate emotion state, and makes the intelligent emotional robot cognize the current emotion of a user; and 4) a physical quantity cognition module which makes the robot understand the environment and self state as the basis of self adjustment.

A visual function evaluation is performed using a sequence of interactions with a mobile device. A patient user may perform a variety of visual tests using the mobile device. The mobile device transmits the test results to a remote server implementing analysis of the visual function results using network service. The network service receives the test results, processes the results, and provides the processed results to a healthcare provider. The processed results may include trends of the user's visual function test performance. The healthcare provider, such as a physician, may optimize and administer treatment based on the data. Early detection of changes in visual function can enable the healthcare provider to individualize treatment, helping to prevent vision loss while minimizing visits to the office, discomfort, and expense.

A method and an instrument is provided for measuring aberration refraction of an eye with a first device for measuring the total aberration refraction of the eye and a second device for measuring the aberration refraction of the cornea of the eye. The component of aberration refraction caused by the lens caused by the lens is calculated using the measured total eye aberration refraction and the measured component of aberration refraction of the cornea mapped over the optical surfaces of the eye. Each component portion of the aberration refraction provides information usable for making appropriate corrective actions at the cornea, at the lens, or both as indicated by the mapped measurements and calculations.

A remote control device having a tracking unit is provided. The remote control device has an audio code receiver therein and cooperated with a transmitter. When the device being used by a user, the transmitter generates an audio signal to the corresponding audio code receiver in the remote control device, so that the remote control device will generate a sound; therefore, the user can easy find the remote control device. The transmitter includes a sound signal generating unit, a sound processor, a control interface, and a speaker. The audio code receiver includes a sound controller, a signal frequency and timing detector, a received signal processor, and a sound sensor and a sound generating unit, and so on. By way of using the remote control device which includes several difference audio code receivers, the user can easily find the remote control device.

While locating a license plate of a moving vehicle on consecutive images, motion detection is first performed on the consecutive images to detect a moving vehicle image, which is segmented using edge detection, and the segmented moving vehicle image is analyzed to retrieve characteristics for locating a license plate image and determining characters on the located license plate image. As a result, a precise location of the license plate is thus precisely located for further recognition no matter what weathers in which the consecutive images are recorded. The above-mentioned technique requires merely few calculations, is easily implemented, and may be applied on an intelligent digital video recording (DVR) system including many computer-vision functions.

Techniques for a visual disability detection system that employs virtual reality to assess visual performance of a patient based on activities of daily living are described. The virtual reality platform can integrate the testing of different components of visual function based on activities of daily living to provide a direct and clinically relevant measure of the impact of any visual disability on a patient's daily life. By simulating daily tasks for evaluation of visual disability, clinicians can better understand from a patient's perspective how visual impairment affects their daily tasks and quality of life.

A system and method of testing vision performance includes displaying a visual recognition test to a subject and receiving from the subject a response to the visual recognition test. After receiving the response to the visual recognition test, a subsequent visual recognition test is selected based on the response received from the subject, the subsequent visual recognition test is displayed, and a response is received from the subject. The subsequent visual recognition tests are repeated until a predetermined criterion is reached. A vision performance score is determined based on the visual recognition tests displayed and the set of responses received from the subject and output from the system.

While locating a license plate of a moving vehicle on consecutive images, motion detection is first performed on the consecutive images to detect a moving vehicle image, which is segmented using edge detection, and the segmented moving vehicle image is analyzed to retrieve characteristics for locating a license plate image and determining characters on the located license plate image. As a result, a precise location of the license plate is thus precisely located for further recognition no matter what weathers in which the consecutive images are recorded. The above-mentioned technique requires merely few calculations, is easily implemented, and may be applied on an intelligent digital video recording (DVR) system including many computer-vision functions.

The invention discloses a flexible retina emboss micro-electrode chip in the technical field of a micro-electronic-mechanical-system and a manufacture method thereof. In the method, parylene C is used as a flexible substrate and an insulating material for preparing a micro-electrode array which is formed by the arrangement of a plurality of micro-electrode sensing elements; simultaneously, an electrode lead and a lead welding point are manufactured to form the flexible retina emboss micro-electrode chip which is planted into the retina part of a human eye, can realize the safe and effective contact with the neuron of the retina, effectively reduce the stimulation to a pulse current, reduce the inserting damage to a biological tissue caused by the planting of the micro-electrode and can improve the effect of electric simulating and neural signal recording, thereby better recovering the visual function. In the invention, the parylene C is used as the substrate of a flexible electrode; the excellent electric insulating performance and mechanical performance thereof can improve the biocompatibility of the micro-electrode chip to a larger extent and have good stability for a long period. In the invention, an MEMS technique is adopted, thus realizing the integration of a functional unit and the flexible substrate of the micro-electrode.

The present invention discloses a 3D simulation digital information channel system and the realization method thereof, wherein, a system comprises a GPS satellite used for the positioning detection for objects on a channel, a telemetry remote control platform for the objects on the channel, which is used to detect the states of the objects on the channel and execute wireless communication, a navigation mark monitoring center used for the 3D display monitoring of the objects of the channel and on the channel and / or around the channel, a wireless communication system used to transmit data among the navigation mark monitoring center and a telemetry remote control platform for the objects on the channel and / or a mobile terminal. The navigation mark monitoring center comprises a system interface used for the communication with the wireless communication system, and a server used for a database as well as management, the display browsing of channel 3D simulation electronic graph and the query analysis of the objects on the channel. The system can veritably reflect the status of the channel and the objects on the channel with three dimensions in a computer, which is a 3D model having an important spatial pattern and visual function in 3DGIS.

The invention is an intelligent wean amblyopia and askant diagnosis and therapeutic apparatus made up of computer, monitor, keyboard, program sensor mouse, blue and red glasses and printer. The computer stores embedded vision function diagnosing software which can complete diagnosis of amblyopia and askant and therapy function. According to modern vision theory, it integrates several kinds of traditional therapeutic apparatus function with computer multi-media technology, realizes the integration of diagnosis, therapy and case recording. It applies to diagnosis of vision function of eyes such as eyesight, and contrast susceptibility. The product can diagnose and cure according to children in different age, the intelligent degree is high; it can upgrade the eyesight of children, improves the functions of eyes; it can carries on double-eye single-vision train before or after operation, solidifies the operation effect.

The invention relates to an audio / video keyword identification method based on decision-making level fusion. The method mainly includes the following steps that (1) a keyword audio / video is recorded, a keyword and non-keyword voice acoustic feature vector sequence and a visual feature vector sequence are obtained, and accordingly a keyword and non-keyword acoustic template and a visual template are trained; (2) acoustic likelihood and visual likelihood are obtained according to the audio / video in different acoustic noise environments, so that the acoustic mode reliability, visual mode reliability and optimal weight are obtained, and accordingly an artificial neural network can be trained; (3) secondary parallel keyword identification based on the acoustic mode and the visual mode is conducted on the audio / video to be detected according to the acoustic template, the visual template and the artificial neural network. According to the audio / video keyword identification method based on decision-making level fusion, the acoustic function and the visual function are fused at a decision-making level, the secondary parallel keyword identification based on the dual modes is conducted on the audio / video to be detected, the contribution of visual information in the acoustic noise environment is fully utilized, and therefore identification performance is improved.

A system and method for ophthalmological imaging is provided for use with a mobile processing device, wherein the mobile processing device comprises a camera lens, light source, and processor configured to process images captured, received, and / or delivered by the mobile processing device. The mobile processing device adapted ophthalmological instrument system comprises housing segments, circuitry, lights, and a frustum cone, wherein the frustum cone comprises reference lines of a plurality of circular, frusto-conical, alternating transparent and opaque concentric rings in the conical surface in optical alignment with the mobile processing device's camera lens and subject's central cornea and / or tear-film layer(s). Reflections of the reference lines off the cornea and / or tear-film layer are imaged by the mobile processing device and analyzed by software applications downloaded to and / or accessed by the smart-phone's processor(s), wherein data of shape, structure, composition, function, and / or power of the cornea and / or tear-film layer(s) are determined by methods comprising one or more image processing and / or computer vision functions configured to produce topographic data. The processor of the mobile processing device can provide and / or receive specific information to / from other instruments and / or users through a communications network.

The invention mainly discloses a multifunctional three-dimensional shooting method based on multiple-lens shooting. The multifunctional three-dimensional shooting method includes: 1 performing synchronous focusing on a main camera and an auxiliary camera; 2 performing image caching on the main camera and the auxiliary camera; 3 calculating the cached images to obtain a depth diagram; 4 producing three-dimensional effects by combining the depth diagram with a high-definition image of the main camera; 5 enabling users to adjust the three-dimensional effects; and 6 outputting the three-dimensional images. The multifunctional three-dimensional shooting method is free of limitation from spaces, effectively avoids serious three-dimensional errors of the images, is applied to portable devices like intelligent cellphones, and provides the portable devices with high-quality computer vision functions and large expansibility.

A system and method of testing vision performance includes displaying a visual recognition test to a subject and receiving from the subject a response to the visual recognition test. After receiving the response to the visual recognition test, a subsequent visual recognition test is selected based on the response received from the subject, the subsequent visual recognition test is displayed, and a response is received from the subject. The subsequent visual recognition tests are repeated until a predetermined criterion is reached. A vision performance score is determined based on the visual recognition tests displayed and the set of responses received from the subject and output from the system.

The invention belongs to the technical field of an ophthalmology specialty medical apparatus, in particular to a weak sight integrated therapeutic apparatus with triple visual function. The invention comprises a base seat, a support seat and a main body, wherein, the base seat is connected with the casing body of the main body through the support seat, a binocular tube, convex lens, a picture, a light guide sheet and a back light source are arranged in the casing body of the main body, the convex lens, the picture, the light guide sheet and the back light source are installed along each eyepiece sleeve shaft in sequence. Through the technical proposal of the invention, the weak sight integrated therapeutic apparatus not only has the function of Haidinger brush training, red light flickering training, fine grade sight contrast training, optical grating training, fine eyesight training and afterimage training, but also has the function of triple visual function training, including binocular vision, stereo vision and a confluence function, the invention not only can improve the eyesight of a weak sight patient through the fine eyesight training, but also can recovery and establish the stereo vision of the weak sight patient through the triple visual function training.

The present invention relates to the optimization of human visual function by correcting and / or optimizing high-order optical aberrations in high performance optical devices. The optimization is particularly useful for high performance devices used under low light conditions such as binoculars, rifle scopes, telescopes, microscopes, night vision goggles and laser eye protection devices.

The invention relates to an optometer for comprehensively detecting diopter and visual function of eyes. The optometer comprises an optometry lifting table, a seat, a computer optometer, a control panel, a function control button, a function execution mechanism and a sighting target assembly, and is characterized in that the sighting target assembly comprises a front sighting target plate and a rear sighting target plate which are provided with sighting target windows, as well as a sighting target card with sighting targets, wherein, the front sighting target plate and the rear sighting target plate are suspended on a near sight test rod; and at least one group of the sighting targets among all the sighting targets are single sighting targets. The optometer further comprises an adjustment sensitivity checking device. The optometry method using the optometer mainly comprises the following steps: (1) diopter detection; and (2) visual function detection. The sighting targets in the structure are changed into single sighting targets so as to improve the judgment accuracy; and meanwhile results can be accurately and effectively checked by the added adjustment sensitivity checking device in a non-hand-held manner. Therefore, by adopting the optometry method, the diopter and the internal visual functional status of eyes can be more comprehensively checked so that the visual health state of eyes can be assessed comprehensively and a reasonable solution can be made further.

The invention discloses a train anomaly recognition detection method and system and belongs to the technical field of automatic image recognition. The recognition method includes the steps of collecting whole train depth information of a train to be detected and a reference train, matching a train model and a train number with the whole train depth information of the train to be detected and the reference train for recognizing faulty components, and matching depth information of the faulty components with that of reference parts for determining faulty parts. The recognition system comprises a collection module for collecting the whole train depth information of the train to be detected, a reference train information acquisition module and a faulty part detection module. A method of collecting three-dimensional image information of a running train with the depth information overcomes the visual function limitation of traditional two-dimensional image information so as to facilitate quick find of actual faulty points of a detection worker, reduce the false positive rate of the system and improve the maintenance efficiency of the detection worker.

The invention relates to a smart visual holder system and a realization method thereof. The system comprises an image collection module which is used for collecting high-speed high-definition sequence images and sending the collected images to a holder master control module; a tri-axial stabilizing holder which is used for controlling a posture of the image collection module; the holder master control module which interacts with the image collection module, the tri-axial stabilizing holder and an image processing module and is used for carrying out video coding and storage on the images collected by the image collection module; and the image processing module which is used for carrying out format conversion on the images received by the holder master control module from the image collection module and processing the images, thereby finishing visual target tracking under moving target indication and a variable field of view, and feeding back a processing result to the holder master control module. The technical problem that an existing system is low in intelligentization degree and single in function is solved. Two intelligent visual functions of moving target indication and variable field of view target continuous tracking are integrated, thereby facilitating use.

A visual function evaluation is performed using a sequence of interactions with a mobile device. A patient user may perform a variety of visual tests using the mobile device. The mobile device transmits the test results to a remote server implementing analysis of the visual function results using network service. The network service receives the test results, processes the results, and provides the processed results to a healthcare provider. The processed results may include trends of the user's visual function test performance. The healthcare provider, such as a physician, may optimize and administer treatment based on the data. Early detection of changes in visual function can enable the healthcare provider to individualize treatment, helping to prevent vision loss while minimizing visits to the office, discomfort, and expense.

The invention relates to a system for treating visual dysfunction by adopting ocular dominance regulation. The system comprises a computer-controlled image controller (15) connected with an output end of an image decoder (10). An input of the image decoder (10) is connected with an image movie database (5) and / or a computer graphics real-time software system (25), and the computer-controlled image controller (15) is connected with at least one graphics and image display system (20). Time intervals of stimulation received by binocular vision are specified in a time window to allow a weaker vision to receive stimulation of visual images earlier than the other more dominant vision. In the system, time scope displayed by the controller is accurate to millisecond and the time window is preferably accurate to plus-minus eight milliseconds. A display device provides stimulation time of the binocular vision in different order, so that the defects of lack of therapeutic effect and proneness to relapse in existing screening method are overcome, and treatment of weak sight and other visual dysfunction is realized.

A pharmaceutical composition for preventing or treating visual function disorders caused by ocular circulatory disorders (for example, ocular hypertension and glaucoma) and visual function disorders based on ciliary tension (for example, myopia) whose active component is a vasopressin antagonist.

The invention discloses a mobile mechanical arm, which belongs to the technical field of robots. The mobile mechanical arm comprises: a mobile platform, a mechanical arm and a two-dimensional rotating cable head, wherein the mechanical arm and the two-dimensional rotating cable head are arranged on the mobile platform. The mechanical arm comprises a waist joint, a shoulder joint, a large arm, an elbow joint, a forearm, a wrist joint and a claw, wherein the waist joint is connected with the shoulder joint; the two ends of the large arm are connected with the shoulder joint and the elbow joint respectively; the two ends of the forearm are connected with the elbow joint and the wrist joint respectively; and the claw is connected with the end of the wrist joint. The mobile mechanical arm has a wide operating space. Because the mechanical arm is fixed on the mobile platform, the mobile mechanical arm can perform mobile operation without suffering from spatial limitation; with two-degree-of-freedom visual performance like human eyes, the mobile mechanical arm is suitable for remote operation and control and can sample image information; and the mechanism can realize six-axial linkage, and the entire system has higher rigidity, high attitude adjustment degree and high reliability.

A vision testing system and method to assess vision function. In one embodiment, the vision testing system comprises: (1) a display; (2) a computer coupled to the display and configured to provide dynamic images, each including a substantially constant fixed point of fixation; and (3) a human input device coupled to the computer, wherein responses from a test subject are fed back to the computer to assess the test subject's vision function.