98 results about "Vision aid" patented technology

A system and method for efficiently locating in 3D an object of interest in a target scene using video information captured by a plurality of cameras. The system and method provide for multi-camera visual odometry wherein pose estimates are generated for each camera by all of the cameras in the multi-camera configuration. Furthermore, the system and method can locate and identify salient landmarks in the target scene using any of the cameras in the multi-camera configuration and compare the identified landmark against a database of previously identified landmarks. In addition, the system and method provide for the integration of video-based pose estimations with position measurement data captured by one or more secondary measurement sensors, such as, for example, Inertial Measurement Units (IMUs) and Global Positioning System (GPS) units.

A method and system for guiding a vehicle comprises a location determining receiver for collecting location data for the vehicle. A vision module collects vision data for the vehicle. A location quality estimator estimates the location quality data for the location data during an evaluation time window. A vision module estimates vision quality data for the vision data during the evaluation time window. A supervisor module selects at least one of a location data weight and a vision data weight based on the quality data.

A system and method related thereto, for automatically inspecting at least one tire of a moving vehicle. The system includes an image acquisition device including at least one camera. The camera acquires multiple real-time images of at least one tire of a moving vehicle. As the tire of the vehicle enters a field of view of the camera, the camera component is configured to photograph and transmit the multiple photographs of the at least one tire. A light source illuminates the at least one tire of the vehicle in the field of view of the camera, and the light application may be synchronous with the imaging performed by the camera. A computer image processing component receives the multiple images transmitted from the camera and analyzes the multiple images using a detection program. The computer imaging processing component analyzing the photographs and provides an inspection analysis of each at least one tire.

A method includes: receiving, with a computing platform, respective trajectory data and map data independently generated by each of a plurality of vision-aided inertial navigation devices (VINS devices) traversing an environment, wherein the trajectory data specifies poses along a path through the environment for the respective VINS device and the map data specifies positions of observed features within the environment as determined by an estimator executed by the respective VINS device; determining, with the computing platform and based on the respective trajectory data and map data from each of the VINS devices, estimates for relative poses within the environment by determining transformations that geometrically relate the trajectory data and the map data between one or more pairs of the VINS devices; and generating, with the computing platform and based on the transformations, a composite map specifying positions within the environment for the features observed by the VINS devices.

A vehicular forward-vision display system includes a night-vision camera for scanning a nighttime image ahead of a vehicle and a head-up display for displaying the scanned nighttime image as a virtual image on a front windshield. Luminance of the displayed image is decreased with decreasing vehicle speed. The luminance of the nighttime image is thereby decreased under a low speed where vision aid is not so necessary. This decreasing of the luminance results in giving a driver relief from the bother of being caught by the scanned image displayed on the front windshield.

A vision aid in the form of telescopic spectacles has two lens systems, which each comprise at least one objective lens (70) and one eyepiece (71). An autofocussing element which changes the focal length of the lens systems for sharp focussing thereof according to the distance of the telescopic spectacle from the object is assigned to the lens systems. Furthermore, an element for changing the magnification factor by changing the focal length of the lens systems (“zoom”) and finally an element for matching the parallax between the lens systems of the vision aid to the focal length which has been set according to the distance of the telescopic spectacles from the object are assigned to the lens systems. The parallax is adapted using adjustable optical elements (11) which are located in the beam path of the lens systems, with which elements the angle (13) between the beam paths (14) running from the lens systems (1) to the object can be changed.

The invention is directed to a method for determining the individually required addition (Add) of a vision assist for an eye, the method having the following steps:

• • a) a preliminary addition (Add_preliminary) is determined;
  • b) the depth of field (T) of the eye is individually determined; and,
  • c) the addition (Add) is computed according to the following equation: Add=Add_preliminary−ωT; wherein ω defines a real number which lies in the range 0<s≦1.

The invention is further directed to a corresponding arrangement for carrying out the method as well as a computer program.

An image display device that provides stereo image display with the help of special glasses (i.e. a vision aid) and that allows a viewer looking at the screen without such a vision aid to view a less strange image, and a stereo image display system including such an image display device are provided. The image display device includes: a display module capable of displaying a left eye image (L) to be viewed via a left eye portion of the vision aid and a right eye image (R) to be viewed via a right eye portion of the vision aid, the left eye and right eye images being displayed separately in time and space; and an average brightness controller capable of regulating an average brightness of the left eye image and an average brightness of the right eye image displayed on the display module in one given frame such that these average brightnesses are different from each other.

The invention discloses an inertial positioning method and an inertial positioning system using vision-aided corrosion. The inertial positioning system comprises an inertial sensor, a positioning identifier, an image pickup module, an image processing unit and a correcting unit, wherein the positioning identifier is used for identifying a positioning point; the image pickup module is used for obtaining image information of the positioning identifier. The image processing unit is used for calculating space position information according to the image information generated by the image pickup module and transmitting the space position information to the correcting unit; the correcting unit is used for carrying out correction on sensed data of the inertial sensor according to the space position information. The inertial positioning method comprises the steps of arranging the image pickup module and the positioning identifier which are separate, wherein the image pickup module is arranged at the correcting end and the positioning identifier is arranged at the inertial sensor end; or the positioning identifier is arranged at the correcting end and the image pickup module is arranged at the inertial sensor end; picking up the positioning identifier by utilizing the image pickup module, and calculating according to the pickup result to obtain the correction data; correcting the sensed data of the inertial sensor by utilizing the correction data. The inertial positioning method has the advantages of being short in correction time, accurate in correction, less in power consumption and the like.

A method and system for guiding a vehicle comprises a location determining receiver for collecting location data for the vehicle. A vision module collects vision data for the vehicle. A location quality estimator estimates the location quality data for the location data during an evaluation time window. A vision module estimates vision quality data for the vision data during the evaluation time window. A supervisor module selects a mixing ratio for the vision data and location data (or error signals associated therewith) based on the quality data.

A method for vision-aided navigation which utilizes an image registration system to update a navigation control system. One exemplary feature of the method includes the use of Enhanced Phase Correlation techniques to create a reference imagery database and register images against the created database. The method may be operated on a non-transitory computer-readable medium storing a plurality of instructions which when executed by one or more processors causes the one or more processors to perform the method for vision-aided navigation which utilizes an image registration system to update a navigation control system.

The invention provides a vision aid method and a vision aid device integrating a camera module and an optical sensor. The device comprises a processing chip, an optical sensor, a camera module and an indication module. When the optical sensor detects that the ambient light brightness is lower than a preset value, the indication module is opened and flickers for reminding. When the light brightness reaches over the preset value and a set time is up, the indication module is closed, and equipment actively opens the camera module to shoot the road condition. When the processing chip judges light intensity mutation as hardware facility change through image comparison, a lamp of the indication module is opened to remind a user of the position. The processing chip can also judge the position of a coming vehicle and calculate the approximate distance, and can remind a user of the dodge direction through vibration and voice according to an image captured by the camera module to enable the user to avoid the coming vehicle. Users can be reminded in real time, indication and early warning can be performed on the surrounding environment, and a guarantee is provided for the personal safety of users.

There is provided a low-vision aid device, including a scene-display imager producing a signal pattern composed of an array of pixels, a near IR illuminator for illuminating the retina of the eye with radiation for eye tracking, to be reflected from the retina of the eye, an eye-retina tracking imager, and an image transceiver device capable of providing both functions of eye imaging as well as image display by selectively rotating the polarization of individual pixels of the array of pixels of the signal pattern, to allow the transference of selected portions of the signal pattern to reach the retina of the eye.

The invention discloses a CNC vision aided machining system and method. A CNC is applied to workpiece machining. The system comprises a light source component, a lens, an industrial camera and an industrial computer. The light source component is arranged above a workpiece and emits parallel light to the upper end surface; the lens is arranged on one side of the light source component far from the workpiece and is parallel to the upper end surface; the industrial camera is arranged on one side of the lens far from the light source component and is connected to the lens; the industrial computer is in information interaction with the industrial camera; the axle of the industrial camera, lens and light source component are located on one straight line; the parallel light penetrates the upper end surface to turn into reflection light and enter the lens, the industrial camera acquires image information and transmits image information to the industrial computer, the industrial computer analyzes the image information, acquires data information and transmits to the CNC, and the CNC machines the workpiece according to the data information. The system has the advantages that speed is high, operating time is saved, operating efficiency is improved, accuracy is high, product qualified rate is increased, and the machining cost for positioning a jig is saved.

An image display device where the display mode can be appropriately switched depending on whether a vision aid is in contact with or close to a portion of a user's body is provided. An image display device (1) includes a display unit (11) that performs display in the stereo image display mode for displaying, separately in time or space, a left eye image to be viewed through a left eye portion (21L) of a vision aid (2) and a right eye image to be viewed through a right eye portion (21R) of the vision aid (2), or a planar image display mode for displaying one of the left eye image and the right eye image.

The image display device (1) receives, from the vision aid (2), a mounting signal (241) that indicates that the vision aid is in contact with or close to a portion of the user's body and switches the display mode of the display unit (11) between the stereo image display mode and the planar image display mode based on the reception condition of the signal.

An object of the present invention is to provide a visual aid network system for supporting people with color vision deficiency, using high functionality, conveniently portable size, and proliferation of mobile phones equipped with a digital camera. A visual aid network server of the present invention comprises: image data receiving means for receiving image data from a portable terminal; user data storing means for storing the image received by the image data receiving means; image color data analyzing means for obtaining the image data from the user data storing means to generate color data of the image; and color data transmitting means for transmitting the color data generated by the image color data analyzing means to the portable terminal.