64 results about "Extended field of view" patented technology

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with an extended field of view.

A system for displaying three-dimensional (3-D) content and enabling a user to interact with the content in an immersive, realistic environment is described. The system has a display component that is non-planar and provides the user with an extended field-of-view (FOV), one factor in the creating the immersive user environment. The system also has a tracking sensor component for tracking a user face. The tracking sensor may include one or more 3-D and 2-D cameras. In addition to tracking the face or head, it may also track other body parts, such as hands and arms. An image perspective adjustment module processes data from the face tracking and enables the user to perceive the 3-D content with motion parallax. The hand and other body part output data is used by gesture detection modules to detect collisions between the user's hand and 3-D content. When a collision is detected, there may be tactile feedback to the user to indicate that there has been contact with a 3-D object. All these components contribute towards creating an immersive and realistic environment for viewing and interacting with 3-D content.

An input-coupler of an optical waveguide couples light corresponding to the image and having a corresponding FOV into the optical waveguide, and the input-coupler splits the FOV of the image coupled into the optical waveguide into first and second portions by diffracting a portion of the light corresponding to the image in a first direction toward a first intermediate-component, and diffracting a portion of the light corresponding to the image in a second direction toward a second intermediate-component. An output-coupler of the waveguide combines the light corresponding to the first and second portions of the FOV, and couples the light corresponding to the combined first and second portions of the FOV out of the optical waveguide so that the light corresponding to the image and the combined first and second portions of the FOV is output from the optical waveguide. The intermediate-components and the output-coupler also provide for pupil expansion.

An image capturing device, such as a digital camera, is able to take photos having a resolution higher than the native resolution capabilities of the device determined by the imager. The device can also take photos having a field-of-view (FOV) that is greater than the normal capabilities of the device. The photos taken have a higher vertical and horizontal FOV (or only an increased horizontal FOV creating a panoramic photo) than the lens of the imager allows natively. The imager of the device may be positioned to point in different directions using an actuator, that is, the actuator can pan and tilt the imager. The imager can also zoom in or out at various levels and has a maximum zoom level. To create either type of photo, an array of cells is used as a tool to capture a series of subimages where the imager is pointed in different directions for each subimage. To create the high-resolution photo, the imager is zoomed into its maximum level and captures each of the subimages based on the array of cells. To create the extended FOV photo, the imager is panned and tilted as much as possible using the actuator and captures each of the subimages based on the array of cells. In both cases the subimages are then stitched together to form a final image.

An optical system is provided for creating a mosaic image of a large field of view through a microscope at fast refresh rates of about 25 Hz with a high resolution that is free of blurring or aberrations. The optical system includes an objective lens assembly (20), an iris (30), one or more scanning mirrors (40) for high-speed scanning, one or more imaging lenses and irises (50, 60, 80), and a high-speed imaging device (70) arranged in that order from an object. The optical system also includes a mechanism for processing and constructing scanned and captured images into a mosaic image.

A hybrid optical system for a head wearable display includes a central vision lens and a peripheral vision lens. The central vision lens approximately aligns with a cornea of a user to provide lensing to a central vision of the user when the user is looking straight forward. The peripheral vision lens, different than the central vision lens, provides lensing to an extended field of view that extends angularly beyond the central vision lensed by the central vision lens when the user is looking straight forward. The peripheral vision lens is disposed around the central vision lens. The peripheral vision lens has a co-incident optical center with the central vision lens but the central vision lens is offset from a physical center of the peripheral vision lens.

This invention provides a system and method for expanding the field of view of a vision system camera assembly such that the field of view is generally free of loss of normal resolution across the entire expanded field. A field of view expander includes outer mirrors that receive light from different portions of a scene. The outer mirrors direct light to tilted inner mirrors of a beam splitter that directs the light aligned with a camera axis to avoid image distortion. The inner mirrors each direct the light from each outer mirror into a strip on the sensor, and the system searches features. The adjacent fields of view include overlap regions sized and arranged to ensure a centralized feature appears fully in at least one strip. Alternatively, a moving mirror changes position between acquired image frames so that a full width of the scene is imaged in successive frames.

A method, a computer program as well as a corresponding apparatus for eliminating scatter artefacts that corrupt an image of an object using computed tomography, wherein X-ray projections of the object are at least partially truncated, whereas the method comprises the steps of: reconstructing a truncated image of the object with a limited field of view from the projections; constructing a model of the object in an extended field of view using the truncated image of the object; deriving a scatter estimate by means of Monte-Carlo simulation using the model of object; correcting a projection of the object for X-ray scatter based on the scatter estimate; reconstructing a scatter-corrected image using the corrected projections.

An optical system is provided for creating a mosaic image of a large field of view through a microscope at fast refresh rates of about 25 Hz with a high resolution that is free of blurring or aberrations. The optical system includes an objective lens assembly (20), an iris (30), one or more scanning mirrors (40) for high-speed scanning, one or more imaging lenses and irises (50, 60, 80), and a high-speed imaging device (70) arranged in that order from an object. The optical system also includes a mechanism for processing and constructing scanned and captured images into a mosaic image.

A method and system for displaying an image associated with an extended field of view is provided. One image comprises a compounded sub-set of the extended field of view. Other images may include an extended field of view image or an image absent compounding from the extended field of view image. The compounded sub-set image is associated with reduced noise as compared to the image absent compounding and more closely resembles an area of the extended field of view image. Where plurality of images are associated with a rotated transducer or scan planes or where a sector or Vector® scan pattern is used, the compounded sub-set provides spatial compounding associated with different angles of incidence to the region of interest, increasing speckle reduction.

This invention provides a field of view expander (FOVE) removably attached to a vision system camera having an image sensor defining an image plane. In an embodiment the FOVE includes first and second mirrors that transmit light from a scene in respective first and second partial fields of view along first and second optical axes. Third and fourth mirrors respectively receive reflected light from the first and second mirrors. The third and fourth mirrors reflect the received light onto the image plane in a first strip and a second strip adjacent to the first strip. The first and second optical axes are approximately parallel and a first focused optical path length between the scene and the image plane and a second focused optical path between the image plane and the scene are approximately equal in length. The optical path can be rotated at a right angle in embodiments.

A system and method of imaging an imaged subject is provided. The system comprises a controller, and an imaging system including an imaging probe in communication with the controller. The imaging probe includes a transducer array operable to move through a range of motion along a first imaging path at a first speed to acquire a first set of image data. The transducer array can be operable to move through the range of motion along the first imaging path at a second speed greater than the first speed so as to acquire an update image data at a rate faster than acquisition of the first set of image data.

A system for mosaicing endoscope images has an endoscope, a computer and a monitor. The endoscope has a relatively wide viewing angle such as 30 degrees to capture video images of a target area. The computer determines feature points on the captured video frames, aligns the video images in a common reference frame and displays them as one mosaiced image while dynamically extending the scene synchronous with the movement of the endoscope. The system creates a distortion free near real-time panorama of the endoscope scene using the wide angle view endoscope, and is useful for physicians while performing endoscopic procedures since the field of view can be extended to provide a better visual-spatial orientation.

The invention discloses a wireless curved plane extended field-of-view ultrasound imaging method and a wireless curved plane extended field-of-view ultrasound imaging device. The method comprises the steps: 1) when an ultrasound probe rotates for any angle during image acquisition, obtaining the rotating angle, the acceleration and the moving direction of the ultrasound probe, and inputting the rotating angle, the acceleration and the moving direction together with ultrasound images obtained at the moment into a computer for processing through a wireless positioning device; 2) taking an initial measurement position as an original space point, establishing a space rectangular coordinate system through a first frame of image and then sequentially obtaining coordinate values of each frame of image in the coordinate system; 3) displaying the images according to the obtained space rectangular coordinate system to realize curved plane extended field-of-view ultrasound imaging. The device comprises the computer and the ultrasound probe, wherein the wireless positioning device is arranged on the ultrasound probe, and the ultrasound probe and the wireless positioning device are respectively connected with the computer. The method and the device disclosed by the invention have the advantages that the flexibility of ultrasound probe scanning is improved and the large-angle bent tissue imaging effect is more ideal.

An ultrasonic diagnostic imaging system produces an extended field of view (EFOV) image. A 3D imaging probe is moved along the skin of a patient above the anatomy which is to be included in the EFOV image. As the probe is moved, images are acquired from a plurality of differently oriented image planes such as a sagittal plane and a transverse plane. As the probe is moved the image data of successive planes of one of the orientations is compared to estimate the motion of the probe. These motion estimates are used to position a succession of images acquired in one of the orientations accurately with respect to each other in an EFOV display format. The motion estimates are also used to display a graphic on the display screen which indicates the progress of the scan to the user as the probe is being moved. The progress may be indicated in terms of probe velocity, distance traveled, or the path traversed by the moving probe.

A system and method for providing extended field of view. In one embodiment, the present invention is directed to provide extended field of view for a user of a personal display system. The system may include an image source coupled to relay optics, to redirecting unit and to reflecting unit, and may optionally be mounted in a helmet.

An eyepiece lens assembly including a collecting lens, glass spherical cemented doublet, a plastic singlet, and a glass spherical singlet. The assembly provides over 30 degrees extended field of view, a greater than 30 mm eye relief, under 5% distortion, a substantially telecentric focal plane, and weighing under 6 ounces.

A method of producing a series of vasculature images over an extended field of view (FOV) larger than an FOV of an MRI system includes acquiring initial time-resolved image data from the vasculature and, during the acquiring process, reconstructing, in substantially real-time, a series of three-dimensional (3D) tracking images of the initial portion of the vasculature illustrating a current position of a contrast bolus in the vasculature as the contrast bolus passes through the initial portion of the vasculature. Based on a current position of the contrast bolus, the subject is moved to a subsequent imaging station to acquire subsequent time-resolved image data and reconstruct subsequent 3D tracking images of subsequent portions of the vasculature. This process is repeated and then an image is assembled that extends over the extended FOV using the initial time-resolved image data and the subsequent time-resolved image data.