197 results about "Agudeza visual" patented technology

An improved graphics processing system and method are described for magnifying visual output information for printing, display, or other output. A graphics engine transforms display information so as to magnify one or more components or areas of an output image for display via output hardware such as a screen or printer. Magnification parameters are supplied to the graphics engine by one or more magnification applications. In an embodiment of the invention, the graphics engine performs compositing of magnified and unmagnified content for display. In an alternative embodiment, the graphics engine outputs corresponding scaled image material to the appropriate magnification application for rendering. In a further embodiment, the graphics engine may operate in both modes. The magnified output according to various embodiments of the invention enhances the accessibility of the computer system for visually handicapped or impaired users by providing high quality magnification and increased system and application stability.

The present invention relates to a hand-held communication aid and method that assists the deaf-dumb and visually impaired individuals to communicate with each other and with normal individuals. The method enables deaf-dumb and visually impaired individuals to communicate with each other and with normal individuals on remote communication means without any hardware improvisation. The method enables face to face communication and remote communication aid for deaf-dumb and visually impaired individuals. This method requires no modifications in hand-held communication device used by normal individual.

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 for enabling the hearing impaired comprises a plurality of servo actuators each associated with a particular segment of a predetermined frequency domain. The servo actuators drive tactile stimulators which engage the skin of the hearing impaired person in patterns that are unique to individual inputs thereby enabling the hearing impaired person to “hear” signals within the defined frequency domain. An electromechanical system for enabling the visually impaired comprises a two dimension array of servo actuators which respond to optical sensors and which actuate tactile stimulators thereby identifying objects in the path of the visually impaired person.

The present invention provides a computer programming learning teaching aid, and an identification operation system and method. The method comprises the steps of: combining programming statements through building blocks according to topics on learning cards, putting building blocks after combination completion on a magnetic basement, and arranging corresponding learning cards on a card putting portion area on the magnetic basement; obtaining building block image data arranged on the magnetic basement of the computer programming learning teaching aid through a mobile terminal, and uploading theobtained building block image data to a terminal server; performing identification for outlines, the feature images and characters in the building block images obtained by the terminal server throughadoption of the identification algorithm; according to the outlines, the feature images and the characters in the building block images, determining a putting sequence and parameters of the buildingblocks and generating a program statement or function; and performing execution for the generated program statement or function, and performing determination for an execution result of the program statement or function to determine whether a target problem is solved or not. The computer programming learning teaching aid, and the identification operation system and method reduce the programming learning requirements, are suitable for universal education, can be easily accepted by children and reduce the eyesight damaging.

An electronic device is described that assists blind and / or low vision users in magnifying and reading printed text, fast book scanning and printing magnified images of said text. The device can also produce audio output that allows listening to the text being pronounced.

The invention discloses a blueberry composite tablet candy capable of relieving visual fatigue and a preparation method thereof. The blueberry composite tablet candy capable of relieving the visual fatigue comprises the following raw materials in percentage by weight: 13.25 percent of a blueberry extract, 0.5 percent of lutein esters, 0.3 percent of beta-carotene, 1.0 percent of citric acid, 64.45 percent of sorbitol, 2 percent of xylooligosaccharide, 3 percent of dextrin and 15 percent of microcrystalline cellulose, wherein the blueberry extract is extracted from a mixture of blackberry pomace dry matter and acid ethanol; the acid ethanol comprises ethanol and water with the volume percentage of 60 percent; the pH value of the acid ethanol is 1.5 to 3.0; the blackberry pomace dry matter and the acid ethanol are in the mass volume ratio of 1:50-1:70; the preparation method of the blueberry composite tablet candy capable of relieving the visual fatigue comprises the following main steps: 1, preparing the blueberry extract; 2, crushing; 3, mixing; 4, granulating; 5, tabletting; 6 packaging. The blueberry composite tablet candy capable of relieving the visual fatigue can effectively relieve the visual fatigue, can improve eyesight after long-term eating, and is convenient to take; a new using way is provided for utilizing fresh blueberry and fully playing intentional physiological and pharmacological efficacies.

The invention belongs to the technical filed of wearable equipment and provides a focal length adjusting method and a headset display. The method includes acquiring the eye degree of a user when it is detected the user wears the headset display; adjusting the focal length of the lens in the headset display to a target focal length according to the eye degree of the user so that the user views a frame whose resolution satisfies a preset condition, wherein the frame is the frame displayed by the headset display. According to the present invention, a user who has a vision problem can clearly view the frame displayed on the headset display without wearing glasses, so that the wearing effect of the headset display and the visual immersion feeling can be improved.

A handbag adapted to enhance organization for the visually-impaired diabetic, being a one life-product that integrates fashion, healthcare and convenience. The handbag includes a sectional organization, thus segregating medical supplies from personal items. In addition, the handbag provides color contrast, texture contrast, and orientation contrast pockets and pouches for ease in organizing the medical supplies and the personal items stored therein.

This invention is in the field of the treatment of eye disorders. In particular, it relates to the use of a remote monitoring system for determining patient response to therapeutic treatment, in particular with VEGF antagonists.

The invention discloses a multifunctional assembled protective film. The multifunctional assembled protective film comprises a film substrate layer 1, a film substrate layer 2, a blue-light resistant coating, an anti-scratching layer and an adhesive coating, wherein the blue-light resistant coating coats between the film substrate layer 1 and the film substrate layer 2; the other side of the film substrate layer 1 is coated by the anti-scratching layer; the anti-scratching layer and the other side of the film substrate layer 2 are coated by the adhesive coating; the adhesive coating is laminated with the protective film. The protective film disclosed by the invention has the functions of resisting scratch, resisting water, resisting peep and the like and is capable of preventing the blue light from harming the eyes, preventing the high-energy short-wave blue light from deepening myopia, blocking the blue light and protecting the eye health of the human body.

A visual aid provides utility to its users by performing geometric transformations of raw images from a digital camera into processed images for electronic display, via three nested levels of “implementation” namely, the nature of the mapping that will be applied, i.e. specifying a specific mapping or parameterized family of mappings; the algorithm set used to effect the select mapping, independent of the processor upon which it executes; and the method for realizing this algorithm on that processor. Likewise offered for consideration are software feature sets tied to user interface which enable dynamic tuning of the subject visual context and environments for low vision users, Inter Alia.

The invention provides an automatic adaptive terminal font size method and device according to the human eyesight. The method comprises measuring the distance between eyes of a user to a personal terminal when the user reads the personal terminal to acquire the sight distance of the user; utilizing the preset sight distance corresponding to a font table to acquire the font size parameters corresponding to the sight distance according to the sight distance of the user; and adjusting font display size of the personal terminal according to the font size parameters corresponding to the sight distance. The automatic adaptive terminal font size method and device according to the human eyesight has the following advantages being capable of automatically adjusting the font display size of the terminal according to strength and change of the human eyesight to greatly protect the human eyesight through the humanized design; enabling people older than 40 years to fully use the personal terminal; and expanding market requirements. Furthermore, a manual adjusting key for font display size of the personal terminal is installed on the surface of a casing of the personal terminal so as to be convenient to adjust.

A method, system and apparatus for providing vision correction to a patient is disclosed. The method, system and apparatus involve a) obtaining at least one bare eye data measurement, habitual lens data measurement and / or fitting lens data measurement of the patient; b) providing the at least one bare eye data measurement, the habitual lens data measurement and / or the fitting lens data measurement to a free form custom lens manufacturing system; c) producing a customized lens using the free form custom lens manufacturing system; and d) providing the custom lens to the patient.

A riser, ridge based touch keypad for a portable electronic device (e.g., mobile phone or flex pointer) is disclosed such that either in a dark environment a person with good eyesight or a person with decreased visual acuity may feel the riser(s) and the ridges representing a unique pattern with the finger in order to find the desired hidden key associated with the unique pattern prior to pressing. A couple of embodiments are also disclosed.

The invention discloses a holographic three-dimensional display mobile terminal and a method used for vision self-adaption. The mobile terminal comprises a human eye tracking module used to acquire positions of user eyes, a holographic conversion module used to convert a virtual three-dimensional scene to a holographic three-dimensional scene according to the positions of the eye positions, a vision acquisition module used to acquire vision information of eyes so as to further obtain a corresponding field depth numerical range, a scene adjusting module, and a display module used to display the holographic three-dimensional scenes, so a user can see far or close variation of object distance in the scene. The scene adjusting module is used to monitor or receive depth of field of the holographic three-dimensional scene and send a field depth adjusting command according to the field depth numerical range, so that adjusted depth of field is in the field depth numerical range. The holographic conversion module is also used to receive the field depth adjusting command, and adjusts the depth of field. Compared with the prior art, the mobile terminal and the method makes users rapidly and conveniently see three-dimensional scenes in which object distance changes to be far or close, so as to correct vision, and display contents of the three-dimensional scenes are enriched, and user experience is improved.

The invention provides a method for improving the stability of a low-concentration atropine ophthalmic preparation. The method is characterized in that an atropine sulfate bulk drug has a total impurity content of no more than 0.25% and / or a single impurity content of no more than 0.05%. The invention also provides a method for preparing the ophthalmic preparation, the atropine ophthalmic preparation prepared by using the method, and an application of the atropine ophthalmic preparation in preparation of drugs used for preventing and / or treating visual defects.

A head mounting display of a goggle type has a display, on which a guide image representing a model performance manipulation and an eyesight image of a practitioner are displayed in a superimposed manner. The guide image is adjusted its display size and position to be displayed on the display based on an image of a keyboard portion included in the eyesight image. Further, resolution and number of colors of the eyesight image are adjusted so as to meet those of the guide image or an animation image, resulting in reduction of data to be processed. Further, a side eyesight image of a hand of the practitioner playing an instrument is taken from the side, and it is determined if the practitioner's hand in the side eyesight image coincides with a model hand posture defined by judgment data which represents model manipulation performed in synchronization with progress of a song.

A system and methods for contrast sensitivity compensation provides for correcting the vision of users whose vision is deficient for discerning high spatial frequencies. The system and methods use measurements of the user's contrast detection as a function of spatial frequency in the image to correct images in real time. The system includes a head-mountable device that includes a camera and a processor that can provide enhanced images at video framing rates.

An electrotherapeutic device for treating a visual disease using microcurrent stimulation is provided. The device includes a signal generator in which a waveform controller digitally controls a waveform signal source so as to generate a waveform in which one or more waveform parameters (e.g., pulse width, pulse period, pulse position, pulse coding, peak current amplitude, duty cycle, and / or pulse shape) are varied in accordance with a protocol for treating a visual disease. The device also includes an applicator connected to the signal generator and configured to apply the waveform to at least one stimulation point within an eye region.

The embodiment of the invention provides an eye fundus image analysis method and system and electronic equipment. The eye fundus image analysis method comprises the following steps: acquiring a to-be-analyzed eye fundus image; performing pixel-level segmentation on the eye fundus image to obtain leopard print segmentation information which identifies that each pixel belongs to a leopard print region or a non-leopard print region; based on the eye fundus image, segmenting a plurality of regions of interest with different degrees of influence of the leopard print on vision, and obtaining region segmentation information for identifying the region of interest to which each pixel belongs; and performing quantitative analysis on the eye fundus leopard print according to the leopard print segmentation information and the region segmentation information. According to the method, quantitative analysis is carried out on the eye fundus leopard print more accurately according to the leopard print segmentation information and the region segmentation information, so that a diagnosis result can be given quickly and accurately; and a doctor does not need to spend a lot of energy and time to learn and analyze how to determine the degree of the leopard print according to the eye fundus image.

The invention discloses a children vision detector. A driving module is arranged in a box body of the children vision detector and is an electronic chip for storage and output, a panel is fixedly arranged in front of the box body, an electronic display screen is fixedly arranged on the top of the box body, loudspeakers are arranged on two sides of the box body, and a switch is fixedly arranged outside the box body. The children vision detector is vivid in image and capable of stimulating the interests and curious psychology of children and smoothly detecting the vision of the children.

A method of making a shelter spectacle for existing spectacles through a public network, includes the steps of gathering dimensional information on the existing spectacles worn by a user; sending the dimensional information on the existing spectacles to a fulfillment center through the public network; according to the dimensional information sent by the user, producing a shelter spectacles which fit the existing spectacles worn by the user; and sending the shelter spectacles back to the user.

A method and system for communicating to sighted persons who cannot read a standard alphanumeric text, the informational content of that text includes an alphanumeric text is converted to a machine-readable set of informationally corresponding data, and then scanned to obtain an informational content data set. The informational content data set is then correlated with hieroglyphs that are representative of the actions, physical objects and the relationship between the actions and the physical objects presented by the informationally corresponding data set. The one or more hieroglyphs are then syntactically arranged to pictorially represent the informationally corresponding data set for a sighted person thereby to inform them of the actions, physical objects and the relationship between those actions and physical objects as was originally presented in the standard alphanumeric text.

The method is suitable for the technical field of password auxiliary input. The invention provides a password input method and a terminal device. The terminal device is provided with an auxiliary device matched with a virtual keyboard. The auxiliary device comprises: a first support provided with a touch mark, and a second support provided with a touch mark. The password input method comprises thefollowing steps of: after a person with visual impairment is monitored to find a column where a target key is located by touching a touch mark on the first bracket, the first preset gesture sliding along the column where the target key is located; or, after the visual impairment person finds the row where the target key is located by touching the touch mark on the second support, after a first preset gesture sliding along a row where a target is located is detected, sending out voice information, and after a second preset gesture is detected, characters at the contact position of the first preset gesture can be input, so that a person with visual impairment is assisted in inputting a password through a touch screen.

The invention discloses a visual impairment simulation method and device. The method comprises the following steps: acquiring an image of a real scene; calling a corresponding algorithm from a visual impairment simulation image algorithm storage library according to a visual impairment type selected by a user, and adjusting algorithm parameters according to corresponding severity of an illness; processing the image of the real scene according to the corresponding algorithm and the adjusted algorithm parameters; and displaying the processed image of the real scene to realize visual impairment simulation. Through adoption of the method and the device disclosed by the invention, the real scene image can be subjected to simulation processing, and the processed image can be displayed to the user in real time, so that the user can feel visual impairment more intuitively and really, and a better demonstration effect is provided.

The invention provides a visual defect help system. The visual defect help system is characterized in that the system comprises an interactive device (1), an information processing device (2) and an application device (3); the interactive device (1) and the information processing device (2) are both arranged in a body, and the information processing device can form a normal real scene capable of being seen by a user by matching the real scene which is subjected to image processing and the visual defect parameters of the user. The invention further provides a corresponding visual defect help method. The visual defect help system and method have the advantages that the user with visual defects can be effectively helped to see objects normally, the universality is achieved, and the system can be used by people with different visual defects; the whole life cycle is realized, and the system can be used by the same user in different periods of time; meanwhile, various visual defects are compatible, environmental protection and sanitation are achieved, and lenses of various models do not need to be produced any more.

The invention discloses a traditional Chinese medicine patch for visual fatigue and eye skin care and a preparation method thereof. The preparation method includes: weighing black bean and agaric, adding water for soaking for 30min, adding platycladus orientalis leaf, Chinese holly leaf, semen cuscutae, fructus rosae, flos carthami, glossy privet leaf and rhizoma chuanxiong, adding water of 10 times and 8 times of amount of added ingredients for decocting twice, extracting liquid once every other 40min, and adopting a micrometer film to filter extract to obtain filtrate; using anhydrous alcohol to soak carrot and lemon, extracting once every other 40min, extracting extract, and using a proper amount of glycerin for dispersion to obtain glycerin liquid; merging the filtrate and the glycerin liquid to obtain product stoste, and using the stoste to soak nonwoven cloth to obtain the patch. The traditional Chinese medicine patch can improve or relieve visual fatigue symptoms like visual disorder, eye fatigue, photophobia, ache, tearing, foreign body sensation, dry eyes and ophthalmospasm and can relieve and eliminate symptoms like eye skin dark circle, crows-feet, eye bag and edema.