624 results about "Visual function" patented technology

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 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 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.

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 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.

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 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.

The invention discloses a method and system for visual function training. The method comprises the steps that acquired user visual function training information is parsed, the visual function trainingcontent is generated, and the generated visual function training content is displayed; the interactive feedback result generated on the basis of the displayed visual function training content is received, and visual function training result information is obtained. Therefore, the method is not the method of building visual function training methods according to one or two types of visual functiontraining, but the method of conducting visual function training by determining various display methods and various interactive methods applied by visual function training on the basis of the user visual function training information so as to achieve many types of visual function training.