60 results about "View dependent" patented technology

A markup language is provided that facilitates communication between servers and clients of an interactive geographic information system (GIS, which enables a number of GIS features, such as network links (time-based and / or view-dependent dynamic data layers), ground overlays, screen overlays, placemarks, 3D models, and stylized GIS elements, such as geometry, icons, description balloons, polygons, and labels in the viewer by which the user sees the target area. Also, “virtual tours” of user-defined paths in the context of distributed geospatial visualization is enabled. Streaming and interactive visualization of filled polygon data are also enabled thereby allowing buildings and other such features to be provided in 3D. Also, techniques for enabling ambiguous search requests in a GIS are provided.

Interactive geographic information systems (GIS) and techniques provide users with a greater degree of flexibility, utility, and information. A markup language facilitates communication between servers and clients of the interactive GIS, which enables a number of GIS features, such as network links (timebased and / or view-dependent dynamic data layers), ground overlays, screen overlays, placemarks, 3D models, and stylized GIS elements, such as geometry, icons, description balloons, polygons, and labels in the viewer by which the user sees the target area. Also, “virtual tours” of user-defined paths in the context of distributed geospatial visualization is enabled. Streaming and interactive visualization of filled polygon data are also enabled thereby allowing buildings and other such features to be provided in 3d. Also, techniques for enabling ambiguous search requests in a GIS are provided.

A novel method and system for 3d-aided-2D face recognition under large pose and illumination variations is disclosed. The method and system includes enrolling a face of a subject into a gallery database using raw 3D data. The method also includes verifying and / or identifying a target face form data produced by a 2D imagining or scanning device. A statistically derived annotated face model is fitted using a subdivision-based deformable model framework to the raw 3D data. The annotated face model is capable of being smoothly deformed into any face so it acts as a universal facial template. During authentication or identification, only a single 2D image is required. The subject specific fitted annotated face model from the gallery is used to lift a texture of a face from a 2D probe image, and a bidirectional relighting algorithm is employed to change the illumination of the gallery texture to match that of the probe. Then, the relit texture is compared to the gallery texture using a view-dependent complex wavelet structural similarity index metric.

A computer-based method and system for interactive volume rendering of a large volume data on a conventional personal computer using hardware-accelerated block filtration optimizing uses 3D-textured axis-aligned slices and block filtration. Fragment processing in a rendering pipeline is lessened by passing fragments to various processors selectively in blocks of voxels based on a filtering process operative on slices. The process involves generating a corresponding image texture and performing two-pass rendering, namely a virtual rendering pass and a main rendering pass. Block filtration is divided into static block filtration and dynamic block filtration. The static block filtration locates any view-independent unused signal being passed to a rasterization pipeline. The dynamic block filtration determines any view-dependent unused block generated due to occlusion. Block filtration processes utilize the vertex shader and pixel shader of a GPU in conventional personal computer graphics hardware. The method is for multi-thread, multi-GPU operation.

A sideview vision system in a vehicle and a method for operating the system. The sideview vision system has a camera fixedly mounted to the vehicle for capturing an image alongside and extending rearward the vehicle, and a display for displaying a view to a driver of the vehicle. The method includes capturing an image using the camera, the image having a first portion and a second portion different from the first portion, displaying a first view corresponding to the first portion in response to the vehicle transmission being in a forward gear, and displaying a second view corresponding to the second portion in response to the transmission being in a reverse gear.

A regional progressive mesh provides support for real-time rendering of large-scale surfaces with locally adapting surface geometric complexity according to changing view parameters. The regional progressive mesh is constructed by subdividing an initial detailed mesh one or more times into multiple sub-regions as an iterative or recursive process. Each sub-region is separately simplified, and the localized transformations recorded in separate segments in a sequence of mesh refinement transformations that form the progressive mesh representation. The resulting regionalized organization of mesh refinement transformations reduces the working set of memory pages containing progressive mesh data needed for real-time view-dependent adaptation and rendering of the mesh surface. An exact approximate error measurement of a vertex split transformation also is defined as the maximum height deviation at enumerated vertices in the open neighborhood of the transformation relative to a regular triangulation of grid points, where the enumerated vertices include the grid points internal to the faces adjacent the split vertex and the grid line crossings internal to edges adjacent the split vertex.

A method and a related system of free-view relighting for a dynamic scene based on photometric stereo, the method including the steps of: 1) performing multi-view dynamic videos of an object using a multi-view camera array under a predetermined controllable varying illumination; 2) obtaining a three-dimensional shape model and surface reflectance peculiarities of the object; 3) obtaining a static relighted three-dimensional model of the object and a three-dimensional trajectory of the object; 4) obtaining a dynamic relighted three-dimensional model; and 5) performing a free-view dependent rendering to the dynamic relighted three-dimensional model of the object.

A 3D scalable surface renderer allows efficient real-time 3D rendering of high-detail smooth surfaces. The renderer is exceptionally effective with software rendering and low-end weaker graphics accelerators, and provides excellent visible quality per the amount of polygons used, while retaining low CPU processing overhead and high efficiency on graphics hardware. The 3D scalable surface renderer provides real time rendering of extremely detailed smooth surfaces with view-dependent tessellation using an improved level of detail approach.

An array of view-dependent sprited tiles provide different views of an image texture (e.g., structure, color, shading, illumination, transparency, as well as other image attributes). The different views of the image texture correspond to different viewing angles at which a user would see the tiles when they are applied to an image geometry. In one implementation, the view dependent sprited tiles are two-dimensional projections of three-dimensional structures. The projections maintain the dimensions (including shape) of the front surfaces of three-dimensional structures at different viewing angles. A projection that meets these characteristics is the oblique parallel projection.