58 results about "Stereoscopic visualization" patented technology

An illumination channel, a stereoscopic optical channel and another optical channel are held and positioned by a robotic surgical system. A first capture unit captures a stereoscopic visible image from the first light from the stereoscopic optical channel while a second capture unit captures a fluorescence image from the second light from the other optical channel. An intelligent image processing system receives the captured stereoscopic visible image and the captured fluorescence image and generates a stereoscopic pair of fluorescence images. An augmented stereoscopic display system outputs a real-time stereoscopic image comprising a three-dimensional presentation of a blend of the stereoscopic visible image and the stereoscopic pair of fluorescence images.

The invention provides compact haptic and augmented virtual reality system that produces an augmented reality environment. The system is equipped with software and devices that provide users with stereoscopic visualization and force feedback simultaneously in real time. High resolution, high pixel density, head and hand tracking ability are provided. Well-matched haptics and graphics volumes are realized. Systems of the invention are compact, making use of a standard personal display device, e.g., a computer monitor, as the display driver. Systems of the invention may therefore be inexpensive compared to many conventional virtual reality systems.

The invention provides a full space-time three-dimensional visualization method. The method includes the following steps: real-time video data collected by a camera are packaged and converted in terms of a format; real-time fixed angle video data are spliced and fused in 3D GIS spatial data, so as to form a panoramic three-dimensional video; an event target of the panoramic three-dimensional video serves as a driving force to realize a camera cooperative pursuit; according to a result by the packet and format conversion, the real-time video data are stored in a storage device to form history video data; and the fixed angle video data are spliced and fused in the 3D GIS spatial data, so as to realize the full space-time three-dimensional visualization display of the history video. In addition, in order to realize video intelligent analysis and realize multidimensional data fusion and three-dimensional visualization display in a full scene, the invention also provides a full scene video intelligent analysis method and a multi-type data full space-time three-dimensional visualization method. The full space-time three-dimensional visualization method provides an effective means for the macro command monitoring, overall correlation, and comprehensive scheduling, and is high in applicability.

An endoscope with a stereoscopic optical channel is held and positioned by a robotic surgical system. A first capture unit captures: a visible first color component of a visible left image combined with a fluorescence left image from first light from one channel in the endoscope; a visible second color component of the visible left image from the first light; and a visible third color component of the visible left image from the first light. A second capture unit captures: a visible first color component of a visible right image combined with a fluorescence right image from second light from the other channel in the endoscope; a visible second color component of the visible right image from the second light; and a visible third color component of the visible right image from the second light. An augmented stereoscopic outputs a real-time stereoscopic image including a three-dimensional presentation including the visible left and right images and the fluorescence left and right images.

An endoscope with a stereoscopic optical channel is again held and positioned by a robotic surgical system. A capture unit captures (1) at a first time, a first image from light from the channel; and (2) at a second time different from the first time, a second image from the light. Only one of the first image and the second image includes a combination of a fluorescence image and a visible image. The other of the first image and the second image is a visible image. An intelligent image processing system generates an artificial fluorescence image using the captured fluorescence image. An augmented stereoscopic display system outputs an augmented stereoscopic image of at least a portion of the tissue comprising the artificial fluorescence image.

A robotic surgical system positions and holds an endoscope. A visible imaging system is coupled to the endoscope. The visible imaging system captures a visible image of tissue. An alternate imaging system is also coupled to the endoscope. The alternate imaging system captures a fluorescence image of at least a portion of the tissue. A stereoscopic video display system is coupled to the visible imaging system and to the alternate imaging system. The stereoscopic video display system outputs a real-time stereoscopic image comprising a three-dimensional presentation of a blend of a fluorescence image associated with the captured fluorescence image, and the visible image.

A contact lens set for stereoscopic visualization includes a left contact lens comprising a first lens substrate incorporating a first polarizer, and a right contact lens comprising a lens substrate incorporating a second polarizer. The first polarizer comprises a first plurality of parallel lines having sub-wavelength pitch and oriented in a first direction. The second polarizer comprises a second plurality of parallel lines having sub-wavelength pitch and oriented in a second direction. The left contact lens and the right contact lens each comprises a rotational stabilization means, such that, during use, the first direction is adapted to orient in an approximately orthogonal direction to the second direction. In another embodiment, a contact lens set for stereoscopic visualization includes a left contact lens and a right contact lens, each coded with different colors.

Apparatus for presenting a stereoscopic image to a viewer, the apparatus comprising:

• • a stereoscopic video system comprising:
    • first and second image sensors for acquiring, respectively, first and second images of a scene;
    • a display system for displaying the first image to the first eye of the viewer and the second image to the second eye of the viewer; and
    • parallax adjusting means for adjusting the parallax between the first and second images.

A method for presenting a stereoscopic image to a viewer, the method comprising:

• • providing a stereoscopic video system comprising:
    • first and second image sensors for acquiring, respectively, first and second images of a scene;
    • a display system for displaying the first image to the first eye of the viewer and the second image to the second eye of the viewer; and
    • parallax adjusting means for adjusting the parallax between the first and second images; and
  • operating the stereoscopic video system so as to provide a stereoscopic image to the user wherein parallax has been adjusted.

Methods for analyzing and visualizing OCT angiography data are presented. In one embodiment, an automated method for identifying the foveal avascular zone in a two dimensional en face image generated from motion contrast data is presented. Several 3D visualization techniques are presented including one in which a particular vessel is selected in a motion contrast image and all connected vessels are highlighted. A further embodiment includes a stereoscopic visualization method. In addition, a variety of metrics for characterizing OCT angiography image data are described.

The invention relates to a method and an arrangement for spatial display, in particular to a display that can be perceived in three dimensions simultaneously by several viewers without viewing aids, also known as autostereoscopic visualization. With the invented method, bits of partial information from different views A(k) with k=1, . . . , n and n>1 are made visible on a grid (1) of pixels x(i,j) with rows (i) and columns (j), and at least one parallax barrier screen (2) is arranged in front of or behind the grid (1) of pixels x(i,j) at a distance s, which contains at least semitransparent segments, the segments corresponding essentially to stripes delimited by straight-line edges, which run uninterruptedly from one margin of the parallax barrier screen (2) to an opposite or adjoining margin, so that one or several viewers (3), because of the viewing restriction effected by the at least one parallax barrier screen (2), will see at least partially different pixels x(i,j) and/or parts thereof with each of their two eyes (3a, 3b), so that each of the two eyes (3a, 3b) perceives at least partially different views A(k) and, thus, a spatial visual impression results.

The invention relates to the field of spatial representation, particularly to images which are spatially perceivable for simultaneous multiple viewers without auxiliary devices so-called autostereoscopic visualization. The invention addresses the problem of creating a form of autostereoscopic representation based on barrier technology in order to achieve an improved perceptibility for multiple simultaneous viewers. This problem is solved by a method for spatial representation wherein image section data of different viewpoints A(k), where k=1, . . . , n and n=6 or n=7, are made visible on a grid of image elements x(i,j), and at least one parallax barrier screen containing alternating opaque and transparent sections is placed at a distance before or behind the grid of image elements x(i,j). The transparent sections substantially correspond to straight bordered lines which, during the parallel projection of parallax barrier screens onto the grid of image elements x(i,j), are inclined to at least 21 degrees with respect to the vertical direction of the grid of image elements x(i,j) and, furthermore, each have the width of at least 1.9 image elements x(i,j) in the horizontal direction of the grid of image elements x(i,j).

The invention provides a power grid current hierarchical partitioned three-dimensional visualized display method. The method comprises the steps that a power grid network topological three-dimensionalgeneral drawing is constructed; a site actual operation parameter list is established; and a control module has two control display modes, wherein the first control display mode is a voltage-level rack display mode, and the second control display mode is a partitioned rack display mode. The method has the advantages that (1) switching between a hierarchical display mode and a partitioned displaymode can be performed flexibly, and since association linkage operation is performed through n-level tree storage structures, system configuration complexity can be lowered, hierarchical display and partitioned display speed can be increased, and user usage experience can be improved; and (2) the method has the two display effects of hierarchical display and partitioned display, pertinent displayof connecting lines is realized effectively according to a user demand, the complexity of the connecting lines is lowered, a dispatcher can observe the power distribution relation among all station sites quickly, clearly and visually, and it is convenient for the dispatcher to make a dispatching decision efficiently.

A robotic imaging apparatus is disclosed. A robotic imaging apparatus includes a robotic arm, a stereoscopic camera, and a sensor positioned between the robotic arm and the stereoscopic camera. The sensor transmits output data that is indicative of translational and rotational force imparted on the stereoscopic camera by an operator. The robotic imaging apparatus also includes a processor that isconfigured to determine a movement sequence for the robotic arm based on a current position of the robotic arm and the output data from the sensor and to cause at least one of the joints of the robotic arm to rotate based on the determined movement sequence via one or more motor control signals provided to the at least one joint. The rotation of the at least one joint provides power-assisted movement of the robotic arm based on the detected translational and rotational forces imparted by the operator.

Provided is a dynamic aircraft assembly scene real-time and three-dimensional visualization method based on a head-mounted displayer. The method comprises the steps that firstly, a position tracker, a controlling computer and a controlled computer both in a computer network cluster, a wireless router and the head-mounted displayer are started; secondly, a user puts on the head-mounted displayer, sits in front of the controlling computer and runs aircraft assembly scene real-time and three-dimensional visual software in the controlling computer, wherein data of the position tracker can be acquired in real time and sent to the controlled computer in the software running process; thirdly, the user controls the position of a viewpoint through a keyboard and controls the visual angle direction by rotating the head to view a dynamic assembly simulation scene; fourthly, in the running process of a program of the controlling computer, the user runs a visual program in the controlled computer, the program receives viewpoint data sent by the controlling computer to drive a viewpoint model, and the user can view the aircraft assembly scene in real time at a third-person visual angle through mouse operation; fifthly, the simulation process is ended, and the visual program in the controlling computer and the visual program in the controlled computer are quit respectively.

A stereoscopic visualization camera and platform are disclosed. An example stereoscopic visualization camera includes a first plurality of lenses positioned along a first optical path and a first image sensor to record a first image stream of a target site from light in the first optical path. The stereoscopic visualization camera also includes a second plurality of lenses positioned along a second optical path, parallel to the first optical path, and a second image sensor to record a second image stream of the target site from light in the second optical path. The stereoscopic visualization camera also includes a processor configured to reduce spurious parallax between the first and second images streams by selecting pixel sets of pixel grids of the first and second image sensors such that zoom repeat points ('ZRP') are located at a center of the respective pixel grids.