Wolfgang Heidrich | |
---|---|
Born | November 3, 1968 |
Nationality | German, Canadian |
Alma mater | University of Erlangen–Nuremberg, University of Waterloo |
Awards | NAI Fellow (2024), ACM SIGGRAPH Computer Graphics Achievement Award (2023), IEEE Fellow (2021), Alexander von Humboldt Foundation Humboldt Research Award (2014), Eurographics Fellow 2013, UBC Charles A. McDowell Award for Excellence in Research (2011), Peter Wall Institute for Advanced Studies Early Career Scholar (2002) |
Scientific career | |
Fields | Computational Imaging, Computer Graphics, Computer Vision, Image Processing, Inverse Problems |
Institutions | King Abdullah University of Science and Technology University of British Columbia |
Doctoral advisor | Hans-Peter Seidel |
Wolfgang Heidrich (born November 3, 1968) is a German-Canadian computer scientist and Professor at the King Abdullah University of Science and Technology (KAUST), for which he served as the director of Visual Computing Center [1] from 2014 to 2021. He was previously a professor at the University of British Columbia (UBC), where he was a Dolby Research Chair [2] (2008-2013). His research has combined methods from computer graphics, optics, machine vision, imaging, inverse methods, and perception to develop new Computational Imaging and Display technologies. His more recent interest focuses on hardware-software co-design of the next generation of imaging systems, with applications such as high dynamic range (HDR) imaging, [3] [4] [5] compact computational cameras, [6] [7] hyper-spectral cameras, [8] [9] wavefront sensors, [10] [11] to name just a few.
Heidrich is best known for his work in developing the high dynamic range (HDR) imaging and displays, which served as the basis for the technology behind Brightside Technologies, [12] which was acquired by Dolby in 2007, and then later on (as part of the Dolby vision) turned into one of the core technical solutions for commercial displays. [13] [14]
In 2010, Heidrich, along with Erik Reinhard, Paul Debevec, Sumanta Pattanaik, Greg Ward, and Karol Myszkowsk, published the book High Dynamic Range Imaging: Acquisition, Display, and Image-Based Lighting, [15] that later on became an essential resource for people working with images. [16]
Heidrich was elected a fellow of NAI, AAIA [17] , IEEE, and Eurographics [18] in 2024, 2023, 2021, and 2013, respectively. He is the recipient of the ACM SIGGRAPH Computer Graphics Achievement Award [19] (2023), the Humboldt Research Award [20] (2014), the Charles A. McDowell Award for Excellence in Research [21] (2011), an NSERC Discovery Accelerator Supplement [22] (2010), and the Peter Wall Institute for Advanced Studies Early Career Scholar Award (2002).
Heidrich received his Diplom informatiker from University of Erlangen (1995), an M.Math in computer science from University of Waterloo (1996), and a PhD (with honours) in computer science from University of Erlangen (1999). Before joining UBC, he was a Research Associate at Max-Planck-Institute for Computer Science (1999-2000). Then, he became a faculty member at the University of British Columbia (UBC) computer science (2000-2018). Since 2014, he has been affiliated with King Abdullah University of Science and Technology (KAUST) CS and ECE.
Rendering is the process of generating a photorealistic or non-photorealistic image from input data such as 3D models. The word "rendering" originally meant the task performed by an artist when depicting a real or imaginary thing. Today, to "render" commonly means to generate an image or video from a precise description using a computer program.
Holography is a technique that enables a wavefront to be recorded and later reconstructed. It is best known as a method of generating three-dimensional images, and has a wide range of other uses, including data storage, microscopy, and interferometry. In principle, it is possible to make a hologram for any type of wave.
In photography and videography, multi-exposure HDR capture is a technique that creates high dynamic range (HDR) images by taking and combining multiple exposures of the same subject matter at different exposures. Combining multiple images in this way results in an image with a greater dynamic range than what would be possible by taking one single image. The technique can also be used to capture video by taking and combining multiple exposures for each frame of the video. The term "HDR" is used frequently to refer to the process of creating HDR images from multiple exposures. Many smartphones have an automated HDR feature that relies on computational imaging techniques to capture and combine multiple exposures.
A light field, or lightfield, is a vector function that describes the amount of light flowing in every direction through every point in a space. The space of all possible light rays is given by the five-dimensional plenoptic function, and the magnitude of each ray is given by its radiance. Michael Faraday was the first to propose that light should be interpreted as a field, much like the magnetic fields on which he had been working. The term light field was coined by Andrey Gershun in a classic 1936 paper on the radiometric properties of light in three-dimensional space.
A 3D display is a display device capable of conveying depth to the viewer. Many 3D displays are stereoscopic displays, which produce a basic 3D effect by means of stereopsis, but can cause eye strain and visual fatigue. Newer 3D displays such as holographic and light field displays produce a more realistic 3D effect by combining stereopsis and accurate focal length for the displayed content. Newer 3D displays in this manner cause less visual fatigue than classical stereoscopic displays.
ACM SIGGRAPH is the international Association for Computing Machinery's Special Interest Group on Computer Graphics and Interactive Techniques based in New York. It was founded in 1969 by Andy van Dam.
Non-photorealistic rendering (NPR) is an area of computer graphics that focuses on enabling a wide variety of expressive styles for digital art, in contrast to traditional computer graphics, which focuses on photorealism. NPR is inspired by other artistic modes such as painting, drawing, technical illustration, and animated cartoons. NPR has appeared in movies and video games in the form of cel-shaded animation as well as in scientific visualization, architectural illustration and experimental animation.
Paul Ernest Debevec is a researcher in computer graphics at the University of Southern California's Institute for Creative Technologies. He is best known for his work in finding, capturing and synthesizing the bidirectional scattering distribution function utilizing the light stages his research team constructed to find and capture the reflectance field over the human face, high-dynamic-range imaging and image-based modeling and rendering.
High-dynamic-range rendering, also known as high-dynamic-range lighting, is the rendering of computer graphics scenes by using lighting calculations done in high dynamic range (HDR). This allows preservation of details that may be lost due to limiting contrast ratios. Video games and computer-generated movies and special effects benefit from this as it creates more realistic scenes than with more simplistic lighting models. HDRR was originally required to tone map the rendered image onto Standard Dynamic Range (SDR) displays, as the first HDR capable displays did not arrive until the 2010s. However if a modern HDR display is available, it is possible to instead display the HDRR with even greater contrast and realism.
Autostereoscopy is any method of displaying stereoscopic images without the use of special headgear, glasses, something that affects vision, or anything for eyes on the part of the viewer. Because headgear is not required, it is also called "glasses-free 3D" or "glassesless 3D".
High dynamic range (HDR), also known as wide dynamic range, extended dynamic range, or expanded dynamic range, is a signal with a higher dynamic range than usual.
Marc Levoy is a computer graphics researcher and Professor Emeritus of Computer Science and Electrical Engineering at Stanford University, a vice president and Fellow at Adobe Inc., and a Distinguished Engineer at Google. He is noted for pioneering work in volume rendering, light fields, and computational photography.
Computer-generated holography (CGH) is a technique that uses computer algorithms to generate holograms. It involves generating holographic interference patterns. A computer-generated hologram can be displayed on a dynamic holographic display, or it can be printed onto a mask or film using lithography. When a hologram is printed onto a mask or film, it is then illuminated by a coherent light source to display the holographic images.
Brian A. Barsky is a professor at the University of California, Berkeley, working in computer graphics and geometric modeling as well as in optometry and vision science. He is a Professor of Computer Science and Vision Science and an Affiliate Professor of Optometry. He is also a member of the Joint Graduate Group in Bioengineering, an inter-campus program, between UC Berkeley and UC San Francisco.
Helge Seetzen is a German technologist and businessman known for imaging & multimedia research and commercialization.
Femto-photography is a technique for recording the propagation of ultrashort pulses of light through a scene at a very high speed (up to 1013 frames per second). A femto-photograph is equivalent to an optical impulse response of a scene and has also been denoted by terms such as a light-in-flight recording or transient image. Femto-photography of macroscopic objects was first demonstrated using a holographic process in the 1970s by Nils Abramsson at the Royal Institute of Technology (Sweden). A research team at the MIT Media Lab led by Ramesh Raskar, together with contributors from the Graphics and Imaging Lab at the Universidad de Zaragoza, Spain, more recently achieved a significant increase in image quality using a streak camera synchronized to a pulsed laser and modified to obtain 2D images instead of just a single scanline.
Holly Rushmeier is an American computer scientist and is the John C. Malone Professor of Computer Science at Yale University. She is known for her contributions to the field of computer graphics.
Light-in-flight imaging — a set of techniques to visualize propagation of light through different media.
Michael F. Cohen is an American computer scientist and researcher in computer graphics. He is currently a Senior Fellow at Meta in their Generative AI Group. He was a senior research scientist at Microsoft Research for 21 years until he joined Facebook in 2015. In 1998, he received the ACM SIGGRAPH CG Achievement Award for his work in developing radiosity methods for realistic image synthesis. He was elected a Fellow of the Association for Computing Machinery in 2007 for his "contributions to computer graphics and computer vision." In 2019, he received the ACM SIGGRAPH Steven A. Coons Award for Outstanding Creative Contributions to Computer Graphics for “his groundbreaking work in numerous areas of research—radiosity, motion simulation & editing, light field rendering, matting & compositing, and computational photography”.
Felix Heide is a German-born computer scientist known for his work in the fields of computational imaging, computer vision, computer graphics and deep learning. He is an assistant professor at Princeton University and was the head of the Computational Imaging Lab. He serves as Head of Artificial Intelligence at Torc Robotics. Heide co-founded Algolux, a startup in computer vision technology for self-driving vehicles, which later merged with Torc Robotics.
This article needs additional or more specific categories .(April 2023) |