Now showing items 21-40 of 90

    • Display Pre-Filtering for Multi-View Video Compression 

      Zwicker, Matthias; Yea, Sehoon; Vetro, Anthony; Forlines, Clifton; Matusik, Wojciech; Pfister, Hanspeter (Association for Computing Machinery, 2007)
      Multi-view 3D displays are preferable to other stereoscopic display technologies because they provide autostereoscopic viewing from any viewpoint without special glasses. However, they require a large number of pixels to ...
    • Display-aware image editing 

      Jeong, Won-Ki; Johnson, Micah K.; Yu, Insu; Kautz, Jan; Pfister, Hanspeter; Paris, Sylvain (IEEE, 2011)
      We describe a set of image editing and viewing tools that explicitly take into account the resolution of the display on which the image is viewed. Our approach is twofold. First, we design editing tools that process only ...
    • Distributed Rendering for Multiview Parallax Displays 

      Annen, Thomas; Matusik, Wojciech; Pfister, Hanspeter; Seidel, Hans-Peter; Zwicker, Matthias (Society of Photo-optical Instrumentation Engineers, 2006)
      3D display technology holds great promise for the future of television, virtual reality, entertainment, and visualization. Multiview parallax displays deliver stereoscopic views without glasses to arbitrary positions within ...
    • Efficient Isotropic BRDF Measurement 

      Matusik, Wojciech; Pfister, Hanspeter; Brand, Matthew; McMillan, Leonard (Eurographics Association, 2003)
      In this paper we present novel reflectance measurement procedures that require fewer total measurements than standard uniform sampling approaches. First, we acquire densely sampled reflectance data for a large collection ...
    • EM-Cube: An Architecture for Low-Cost Real-Time Volume Rendering 

      Osborne, Rändy; Pfister, Hanspeter; Lauer, Hugh; Ohkami, TakaHide; McKenzie, Neil; Gibson, Sarah; Hiatt, Wally (Association for Computing Machinery, 1997)
      EM-Cube is a VLSI architecture for low-cost, high quality volume rendering at full video frame rates. Derived from the Cube-4 architecture developed at SUNY at Stony Brook, EM-Cube computes sample points and gradients ...
    • Enabling a High Throughput Real Time Data Pipeline for a Large Radio Telescope Array with GPUs 

      Pfister, Hanspeter; Edgar, Richard G; Mitchell, Daniel A; Ord, Stephen M; Greenhill, Lincoln J.; Clark, Michael A.; Dale, Kevin; Wayth, Randall B. (Elsevier, 2010)
      The Murchison Widefield Array (MWA) is a next-generation radio telescope currently under construction in the remote Western Australia Outback. Raw data will be generated continuously at 5 GiB s\(^{−1}\), grouped into 8 s ...
    • Entourage: Visualizing Relationships between Biological Pathways using Contextual Subsets 

      Lex, Alexander; Partl, Christian; Kalkofen, Denis; Streit, Marc; Gratzl, Samuel; Wasserman, Anne Mai; Schmalstieg, Dieter; Pfister, Hanspeter (IEEE, 2013)
      Biological pathway maps are highly relevant tools for many tasks in molecular biology. They reduce the complexity of the overall biological network by partitioning it into smaller manageable parts. While this reduction of ...
    • Estimation of 3D Faces and Illumination from Single Photographs Using a Bilineaur Illumination Model 

      Lee, Jinho; Machiraju, Raghu; Pfister, Hanspeter; Moghaddam, Baback (Eurographics Association, 2005)
      3D Face modeling is still one of the biggest challenges in computer graphics. In this paper we present a novel framework that acquires the 3D shape, texture, pose and illumination of a face from a single photograph. ...
    • Evaluation of Artery Visualizations for Heart Disease Diagnosis 

      Borkin, Michelle Anne; Gajos, Krzysztof Z.; Peters, Amanda Elizabeth; Mitsouras, Dimitrios; Melchionna, Simone; Rybicki, Frank John; Feldman, Charles Lawrence; Pfister, Hanspeter (Institute of Electrical and Electronics Engineers, 2011)
      Heart disease is the number one killer in the United States, and finding indicators of the disease at an early stage is critical for treatment and prevention. In this paper we evaluate visualization techniques that enable ...
    • Evaluation of Filesystem Provenance Visualization Tools 

      Borkin, Michelle Anne; Yeh, Chelsea S.; Boyd, Madelaine; Macko, Peter; Gajos, Krzysztof Z; Seltzer, Margo I.; Pfister, Hanspeter (Institute of Electrical and Electronics Engineers, 2013)
      Having effective visualizations of filesystem provenance data is valuable for understanding its complex hierarchical structure. The most common visual representation of provenance data is the node-link diagram. While ...
    • EWA Splatting 

      Zwicker, Matthias; Pfister, Hanspeter; van Baar, Jeroen; Gross, Markus (Institute of Electrical and Electronics Engineers, 2002)
      In this paper, we present a framework for high quality splatting based on elliptical Gaussian kernels. To avoid aliasing artifacts, we introduce the concept of a resampling filter, combining a reconstruction kernel with a ...
    • EWA Volume Splatting 

      Zwicker, Matthias; Pfister, Hanspeter; van Baar, Jeroen; Gross, Markus (Institute of Electrical and Electronics Engineers, 2001)
      In this paper we present a novel framework for direct volume rendering using a splatting approach based on elliptical Gaussian kernels. To avoid aliasing artifacts, we introduce the concept of a resampling filter combining ...
    • Example-based video color grading 

      Bonneel, Nicolas; Sunkavalli, Kalyan; Paris, Sylvain; Pfister, Hanspeter (Association for Computing Machinery (ACM), 2013)
      In most professional cinema productions, the color palette of the movie is painstakingly adjusted by a team of skilled colorists -- through a process referred to as color grading -- to achieve a certain visual look. The ...
    • Exploring Defocus Matting: Nonparametric Acceleration, Super-Resolution, and Off-Center Matting 

      Joshi, Neel; Matusik, Wojciech; Avidan, Shai; Pfister, Hanspeter; Freeman, William T. (Institute of Electrical and Electronics Engineers, 2007)
      Defocus matting is a fully automatic and passive method for pulling mattes from video captured with coaxial cameras that have different depths of field and planes of focus. Nonparametric sampling can accelerate the ...
    • Exploring the Connectome: Petascale Volume Visualization of Microscopy Data Streams 

      Beyer, Johanna; Hadwiger, Markus; Al-Awami, Ali; Jeong, Won-Ki; Kasthuri, Narayanan; Lichtman, Jeff; Pfister, Hanspeter (Institute of Electrical & Electronics Engineers (IEEE), 2013)
      Recent advances in high-resolution microscopy let neuroscientists acquire neural-tissue volume data of extremely large sizes. However, the tremendous resolution and the high complexity of neural structures present big ...
    • An Extended Volume Visualization System for Arbitrary Parallel Projection 

      Bakalash, R.; Kaufman, A.; Pacheco, R.; Pfister, Hanspeter (Eurographics Association, 1992)
      We present a special architecture for arbitrary parallel projection for visualization of volumetric data. Using a ray-casting technique, parallel memory access, and pipelined processing of rays in a composition tree, we ...
    • Face Transfer with Multilinear Models 

      Vlasic, Daniel; Brand, Matthew; Pfister, Hanspeter; Popovic, Jovan (Association for Computing Machinery, 2006)
      Face Transfer is a method for mapping videorecorded performances of one individual to facial animations of another. It extracts visemes (speech-related mouth articulations), expressions, and three-dimensional (3D) pose ...
    • Factored Time-Lapse Video 

      Sunkavalli, Kalyan Krishna; Matusik, Wojciech; Pfister, Hanspeter; Rusinkiewicz, Szymon (Association for Computing Machinery, 2007)
      We describe a method for converting time-lapse photography captured with outdoor cameras into Factored Time-Lapse Video (FTLV): a video in which time appears to move faster (i.e., lapsing) and where data at each pixel has ...
    • Fast Re-Rendering of Volume and Surface Graphics by Depth, Color, and Opacity Buffering 

      Bhalerao, Abhir; Pfister, Hanspeter; Halle, Michael; Kikinis, Ron (Elsevier, 2000)
      A method for quickly re-rendering volume data consisting of several distinct materials and intermixed with moving geometry is presented. The technique works by storing depth, color and opacity information, to a given ...
    • Finding Optimal Views for 3D Face Shape Modeling 

      Lee, Jinho; Moghaddam, Baback; Pfister, Hanspeter; Machiraju, Raghu (Institute of Electrical and Electronics Engineers, 2004)
      A fundamental problem in multi-view 3D face modeling is the determination of the set of optimal views (poses) required for accurate 3D shape estimation of a generic face. There is no analytical solution to this problem, ...