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7085409 |
Method and apparatus for synthesizing new video and/or still imagery from a collection of real video and/or still imagery
An image-based tele-presence system forward warps video images selected from a plurality fixed imagers using local depth maps and merges the warped images to form high quality images that appear as...
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7079136 |
Rendering method of rendering image on two-dimensional screen
A frame where a two-dimensional image is formed is subdivided into predetermined unit areas, and a desired range is determined in the frame, and further, a determination is made whether or not...
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7079174 |
Electronic equipment
In an electronic equipment provided with 2D (two-dimensional) and 3D (three-dimensional) displaying functions, an easily viewable 2D image screen and an enjoyable 3D image screen are switched and...
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7068272 |
System, method and article of manufacture for Z-value and stencil culling prior to rendering in a computer graphics processing pipeline
A system, method and article of manufacture are provided for early Z-value based culling prior to pixel rendering in a graphics pipeline. In initial stages of processing, Z-value culling is...
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7064752 |
Multi-function unit of a graphics system for updating a hierarchical Z buffer
A multi-function unit for occlusion testing primitives being processed in a graphics system and for updating a Z pyramid data structure used for occlusion testing. The Z pyramid data structure is...
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7061487 |
Method and apparatus for improving depth information communication bandwidth in a computer graphics system
A method and apparatus for improving bandwidth for depth information communication in a computer graphics system. In operation, a decoder checks a type table associated with a collection of pixels...
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7042463 |
Image generating system and program
It is an object to provide an image generating system and program which can generate such an image as in the real world with reduced processing load. The alpha-value for each pixel in the original...
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7042462 |
Pixel cache, 3D graphics accelerator using the same, and method therefor
An effective structure of a pixel cache for use in a three-dimensional (3D) graphics accelerator is provided. The pixel cache includes a z-data storage unit that reads z-data from a frame memory...
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7034823 |
3D computer graphics processing apparatus and method
In a computer graphics apparatus, a three-dimensional object is modelled using a mesh of triangles which approximate the object surface. To display images, each triangle is sub-divided into smaller...
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7031512 |
Method and system for 3D smoothing within the bound of error regions of matching curves
An image processing system and method for smoothing irregularities from 3D image information that was reconstructed from a plurality of 2D views of a scene, and particularly from homogeneous...
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7030880 |
Information processor
In an information processing apparatus for conducting an affine transformation representative of
( x ′ y ′ z ′ ) = A ( x y z ) + ( t 1 t 2 t 3 ) ,
a matrix
A ′ = ( a...
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7030878 |
Method and apparatus for generating a shadow effect using shadow volumes
The computer graphics system is configured to generate a shadow effect with a stencil shadow volume method using a combination of compressed and uncompressed stencil buffers in coordination with...
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7030887 |
Methods and systems for transparent depth sorting
Methods and systems for transparent depth sorting are described. In accordance with one embodiment, multiple depth buffers are utilized to sort depth data associated with multiple transparent...
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7024028 |
Method of using frame of pixels to locate ROI in medical imaging
A method of using a frame of pixels of a specified characteristic such as a maximal intensity projected frame and a depth location “virtual” frame to locate and image ROI's in patients.
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7006709 |
System and method deghosting mosaics using multiperspective plane sweep
A system and method for deghosting mosaics provides a novel multiperspective plane sweep approach for generating an image mosaic from a sequence of still images, video images, scanned photographic...
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6999077 |
z-buffer based interpenetrating object detection for antialiasing
Graphic processor compares z-buffer values of 3D objects to detect and mark interpenetrating pixels. Tag buffer stores marked values for antialiasing effectively by over-sampling, area-based,...
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6999076 |
System, method, and apparatus for early culling
A method of graphics processing includes determining a non-depth conditional status and an occlusion status of a fragment. Such a method may be used in culling occluded fragments before expending...
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6989840 |
Order-independent transparency rendering system and method
A system, method and computer program product are provided for transparency rendering in a graphics pipeline. Initially, colored-transparency information is collected from a plurality of depth...
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6982713 |
System and method for clearing depth and color buffers in a real-time graphics rendering system
A method and system for clearing depth and color buffers in a real time graphics rendering system 10 . The method and system are able to improve both depth and color buffer clearing. The method...
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6980208 |
System and method for enhancing depth value processing in a graphics pipeline
A system, method and computer program product are provided for performing depth testing and blending operations in a first mode and a second mode. In the first mode, a circuit processes a first...
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6978230 |
Apparatus, system, and method for draping annotations on to a geometric surface
Vertices of an annotation are projected onto a surface of a (2D or 3D) model and reconnected to preserve the original appearance of the annotation. The result of our method is a new set of geometry...
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6975329 |
Depth-of-field effects using texture lookup
A graphical processing unit (GPU) and methods for rendering a three-dimensional (3D) scene generated in a field of view having in-focus and out-of-focus regions on a two-dimensional (2D) screen...
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6975319 |
System, method and article of manufacture for calculating a level of detail (LOD) during computer graphics processing
A system, method and article of manufacture are provided for calculating a level of detail (LOD) value for use during computer graphics processing. First, a plurality of geometrically arranged...
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6961057 |
Method and apparatus for managing and accessing depth data in a computer graphics system
A computer graphics system provides for processing image data including Z data for use in displaying three-dimensional images on a display unit. The system includes: a depth buffer providing for...
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6956578 |
Non-flushing atomic operation in a burst mode transfer data storage access environment
A z-unit for a three-dimensional graphics system is provided having a read buffer and a write buffer. The read buffer stores read requests and the write buffer stores write requests. The read and...
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6954208 |
Depth write disable for rendering
A depth write disable apparatus and method for controlling evictions, such as depth values, from a depth cache to a corresponding depth buffer in a zone rendering system. When the depth write...
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6954202 |
Image-based methods of representation and rendering of three-dimensional object and animated three-dimensional object
Provided are three-dimensional still and animated object representations obtained from photos of real-life objects and their geometrical representations, allowing compact storage, fast rendering...
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6952206 |
Graphics application program interface system and method for accelerating graphics processing
A system, method and computer program product are provided for accelerating graphics processing utilizing a graphics application program interface. Initially, graphics data is processed in a...
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6943791 |
Z-slope test to optimize sample throughput
A system and method are disclosed for utilizing a Z slope test to select polygons that may be candidates for multiple storage methods. The method may calculate the absolute Z slope from vertex data...
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6937245 |
Graphics system with embedded frame buffer having reconfigurable pixel formats
A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and audio processor including a 3D graphics...
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6937236 |
Methods and apparatus for culling sorted, back facing graphics data
A method for rendering an image of a digital object. The method includes sorting data representative of the positions of at least three vertices of each polygon of the plurality of polygons that...
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6924801 |
Method and apparatus for early culling of occluded objects
A method and apparatus for early occlusion culling are provided. For the method of the present invention, a host processor establishes a coarse Z-buffer. The coarse Z-buffer is divided into a...
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6911990 |
Fast clear technique for display regions having subregions
A technique for performing clear operations in a region having a subregion. Responsive to a clear command: a current clear count for the region is left unchanged; a predetermined value is written...
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6906715 |
Shading and texturing 3-dimensional computer generated images
A method and apparatus for shading and texturing 3-dimensional computer generated images deals with punch through textures by supplying data defining a group of surfaces representing each object in...
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6903739 |
Graphic display system having a frame buffer with first and second memory portions
A graphics display system has a graphics processor system for forming a color image on a display, the display being composed of an array of pixels. A memory system has a first memory for storing at...
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6900799 |
Filtering processing on scene in virtual 3-D space
A scene in a virtual three-dimensional space is divided into multiple regions in accordance with the depth from a prescribed viewing point. Filtering levels are set for the respective divisional...
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6894689 |
Occlusion culling method and apparatus for graphics systems
A system, method and computer program product are provided for avoiding reading z-values in a graphics pipeline. Initially, near z-values are stored which are each representative of a near z-value...
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6882342 |
Image processing method, image processing program, and image processing apparatus
In an image processing method to form a predetermined image with an image processing unit having a frame-buffer and z-buffer corresponded to the frame-buffer, a main-model and a sub-model...
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6876360 |
Image generation method and device used thereof
The present invention ensures that object images to be subjected to a predetermined image processing are subjected to such image processing depending on predetermined coefficients of...
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6868191 |
System and method for median fusion of depth maps
The present invention is directed toward providing a system for constructing a graphical representation of an image, as perceived from a desired view, from a plurality of calibrated views. An...
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6864903 |
Internet system for virtual telepresence
The present invention is an interactive virtual telepresence system that allows an Internet user to view three-dimensional objects from any perspective in a studio at a remote server. The system...
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6864889 |
System for previewing a photorealistic rendering of a synthetic scene in real-time
A system is provided for previewing a photorealistic representation of a synthetic scene in real-time. An object may be sampled in accordance with predetermined parameters to generate a...
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6862024 |
Enhancing textured range images using a 2D editor
A method edits a 3D model using 2D images. First, a projected range image is generated from a 3D model. The projected range image is edited using a 2D editor. A projected distance and a cliff...
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6856314 |
Method and system for 3D reconstruction of multiple views with altering search path and occlusion modeling
An image processing system and method reconstructs 3D image information corresponding to a scene from a plurality of 2D images of the scene. The method receives a plurality of image features...
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6842183 |
Three-dimensional image processing unit and computer readable recording medium storing three-dimensional image processing program
A 3D image processing unit for applying a specified image processing to display a model located in a simulated 3D space on a monitor after rendering processing. The 3D image processing unit...
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6839060 |
Method and device of consistency buffer for high performance 3D graphic accelerator
A method and a device of consistency buffer for a high performance 3D graphic accelerator is disclosed to retain consistency without detecting any overlapping region in advance but determining an...
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6839058 |
Depth sorting for use in 3-dimensional computer shading and texturing systems
A method and apparatus for automatically sorting translucent object data in a 3-dimensional computer shading texturing system first stores a list of objects to be shaded and textured. For each...
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6828969 |
Game system, program and image generating method
A game system, program and image generating method which can effectively generate an image of an edge line in a more natural manner are provided. The image of an edge line EDL of an object OB is...
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6819328 |
Graphic accelerator with interpolate function
A graphic accelerator includes an image-forming data decode unit, an image memory control unit and a screen data generation unit. The image memory control unit performs a control for writing an...
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6812927 |
System and method for avoiding depth clears using a stencil buffer
A system and method are provided for reducing the number of depth clear operations in a hardware graphics pipeline. Initially, a frame count is stored into a frame buffer associated with the...
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