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Light Stage
A light stage is an active illumination system used for shape, texture, reflectance and motion capture often with structured light and a multi-camera setup. Reflectance capture The reflectance field over a human face was first captured in 1999 by Paul Debevec, Tim Hawkins et al and presented in SIGGRAPH 2000. The method they used to find the light that travels under the skin was based on the existing scientific knowledge that light reflecting off the air-to-oil retains its polarization while light that travels under the skin loses its polarization. Using this information, a light stage was built by Debevec et al., consisting of # Moveable digital camera # Moveable simple light source (full rotation with adjustable radius and height) # Two polarizers set into various angles in front of the light and the camera # A computer with relatively simple programs doing relatively simple tasks. The setup enabled the team to find the subsurface scattering component of the bidire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Stage X
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz. The visible band sits adjacent to the infrared (with longer wavelengths and lower frequencies) and the ultraviolet (with shorter wavelengths and higher frequencies), called collectively '' optical radiation''. In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity, propagation direction, frequency or wavelength spectrum, and polarization. Its speed in vacuum, , is one of the fundamental constants of nature. All electromagnetic radiation exhibits some properties of both particles and waves. Sin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Source
Light, visible light, or visible radiation is electromagnetic radiation that can be visual perception, perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequency, frequencies of 750–420 terahertz (unit), terahertz. The visible band sits adjacent to the infrared (with longer wavelengths and lower frequencies) and the ultraviolet (with shorter wavelengths and higher frequencies), called collectively ''optical radiation''. In physics, the term "light" may refer more broadly to electromagnetic radiation of any wavelength, whether visible or not. In this sense, gamma rays, X-rays, microwaves and radio waves are also light. The primary properties of light are intensity (physics), intensity, propagation direction, frequency or wavelength spectrum, and polarization (waves), polarization. Its speed of light, speed in vacuum, , is one of the fundamental physi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imaging Technology
Imaging is the representation or reproduction of an object's form; especially a visual representation (i.e., the formation of an image). Imaging technology is the application of materials and methods to create, preserve, or duplicate images. Imaging science is a multidisciplinary field concerned with the generation, collection, duplication, analysis, modification, and visualization of images,Joseph P. Hornak, ''Encyclopedia of Imaging Science and Technology'' (John Wiley & Sons, 2002) including imaging things that the human eye cannot detect. As an evolving field it includes research and researchers from physics, mathematics, electrical engineering, computer vision, computer science, and perceptual psychology. '' Imagers'' are imaging sensors. Imaging chain The foundation of imaging science as a discipline is the "imaging chain" – a conceptual model describing all of the factors which must be considered when developing a system for creating visual renderings (images). In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Image Synthesis
Human image synthesis is technology that can be applied to make believable and even photorealistic renditions of human-likenesses, moving or still. It has effectively existed since the early 2000s. Many films using computer generated imagery have featured synthetic images of human-like characters digitally composited onto the real or other simulated film material. Towards the end of the 2010s deep learning artificial intelligence has been applied to synthesize images and video that look like humans, without need for human assistance, once the training phase has been completed, whereas the old school 7D-route required massive amounts of human work . Timeline of human image synthesis * In 1971 Henri Gouraud made the first CG geometry capture and representation of a human face. Modeling was his wife Sylvie Gouraud. The 3D model was a simple wire-frame model and he applied the Gouraud shader he is most known for to produce the first known representation of human-likeness on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barack Obama
Barack Hussein Obama II (born August 4, 1961) is an American politician who was the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American president in American history. Obama previously served as a U.S. senator representing Illinois from 2005 to 2008 and as an Illinois state senator from 1997 to 2004. Born in Honolulu, Hawaii, Obama graduated from Columbia University in 1983 with a Bachelor of Arts degree in political science and later worked as a community organizer in Chicago. In 1988, Obama enrolled in Harvard Law School, where he was the first black president of the ''Harvard Law Review''. He became a civil rights attorney and an academic, teaching constitutional law at the University of Chicago Law School from 1992 to 2004. In 1996, Obama was elected to represent the 13th district in the Illinois Senate, a position he held until 2004, when he successfully ran for the U.S. Senate. In the 2008 pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute For Creative Technologies
The Institute for Creative Technologies (ICT) is a University Affiliated Research Center at the University of Southern California located in Playa Vista, California. ICT was established in 1999 with funding from the US Army. Dr. Mike Andrews, chief scientist of the US Army is described as "founder of and inspiration behind" the ICT. He followed up on discussions between US Army leadership (four-star general Paul J. Kern) and Disney Imagineering president Bran Ferren, on how to gain access to Hollywood entertainment industry expertise in high-technology areas such as computer-based Modeling & Simulation, and Virtual Reality. The name was derived from Ferren's title at The Walt Disney Company. It was created to combine the assets of a major research university with the creative resources of Hollywood and the game industry to advance the state-of-the-art in training and simulation. The institute's research has also led to applications for education, entertainment and rehabi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Southern California
The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in California, and has an enrollment of more than 49,000 students. The university is composed of one Liberal arts education, liberal arts school, the University of Southern California academics, Dornsife College of Letters, Arts and Sciences, and 22 Undergraduate education, undergraduate, Graduate school, graduate, and professional schools, enrolling roughly 21,000 undergraduate and 28,500 Postgraduate education, post-graduate students from all fifty U.S. states and more than 115 countries. It is a member of the Association of American Universities, which it joined in 1969. USC sponsors a variety of intercollegiate sports and competes in the National Collegiate Athletic Association (NCAA) and the Big Ten Conference. Members of USC's sports ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Matrix Revolutions
''The Matrix Revolutions'' is a 2003 American science fiction action film written and directed by the Wachowskis. The direct sequel to ''The Matrix Reloaded,'' it is the third installment in ''The Matrix'' film series, released six months following its predecessor. The film stars Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss, Hugo Weaving, Jada Pinkett Smith, Monica Bellucci, Lambert Wilson, and Mary Alice who replaced Gloria Foster as the Oracle following Foster's death in 2001. This is Alice's final film role before her death in July 2022. The film follows Neo and his allies as they fight to end the war between humanity and the machines permanently while opposing the rogue Agent Smith. The film was released simultaneously in 108 territories on November 5, 2003, by Warner Bros. Pictures. While being the final entry in the original trilogy of the series, the ''Matrix'' storyline was continued in '' The Matrix Online'' video game. ''The Matrix Revolutions'' was th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Matrix Reloaded
''The Matrix Reloaded'' is a 2003 American science fiction action film written and directed by the Wachowskis. It is the sequel to ''The Matrix'' (1999) and the second installment in the ''Matrix'' film series. The film stars Keanu Reeves, Laurence Fishburne, Carrie-Anne Moss, Hugo Weaving, and Gloria Foster who reprise their roles from the previous film, with Jada Pinkett Smith joining the cast. In the film, Neo, Morpheus, and Trinity attempt to reach the Source of the Matrix to end the war as Zion prepares for an invasion from the machines. The film premiered on May 7, 2003, in Westwood, Los Angeles, California, and had its worldwide release by Warner Bros. Pictures on May 15, 2003, including a screening out of competition at the 2003 Cannes Film Festival. The video game ''Enter the Matrix'' and '' The Animatrix'', a collection of short animations, supported and expanded the film's story. The film received generally positive reviews from critics, although most fel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Cinematography
Virtual cinematography is the set of Cinematography, cinematographic techniques performed in a computer graphics environment. It includes a wide variety of subjects like photographing real objects, often with Stereo camera, stereo or multi-camera setup, for the purpose of recreating them as three-dimensional objects and algorithms for the automated creation of real and Computer simulation, simulated camera angles. Virtual cinematography can be used to shoot scenes from otherwise impossible camera angles, create the photography of animated films, and manipulate the appearance of computer-generated effects. History Early stages An early example of a film integrating a virtual environment is the 1998 film, What Dreams May Come (film), ''What Dreams May Come'', starring Robin Williams. The film's special effects team used actual building blueprints to generate scale wireframe models that were then used to generate the virtual world. The film went on to garner numerous nominations a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bidirectional Scattering Distribution Function
The definition of the BSDF (bidirectional scattering distribution function) is not well standardized. The term was probably introduced in 1980 by Bartell, Dereniak, and Wolfe. Most often it is used to name the general mathematical function which describes the way in which the light is scattered by a surface. However, in practice, this phenomenon is usually split into the reflected and transmitted components, which are then treated separately as BRDF (bidirectional reflectance distribution function) and BTDF (bidirectional transmittance distribution function). * BSDF is a superset and the generalization of the BRDF and BTDF. The concept behind all BxDF functions could be described as a black box with the inputs being any two angles, one for incoming (incident) ray and the second one for the outgoing (reflected or transmitted) ray at a given point of the surface. The output of this black box is the value defining the ratio between the incoming and the outgoing light energy for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angle
In Euclidean geometry, an angle can refer to a number of concepts relating to the intersection of two straight Line (geometry), lines at a Point (geometry), point. Formally, an angle is a figure lying in a Euclidean plane, plane formed by two Ray (geometry), rays, called the ''Side (plane geometry), sides'' of the angle, sharing a common endpoint, called the ''vertex (geometry), vertex'' of the angle. More generally angles are also formed wherever two lines, rays or line segments come together, such as at the corners of triangles and other polygons. An angle can be considered as the region of the plane bounded by the sides. Angles can also be formed by the intersection of two planes or by two intersecting curves, in which case the rays lying tangent to each curve at the point of intersection define the angle. The term ''angle'' is also used for the size, magnitude (mathematics), magnitude or Physical quantity, quantity of these types of geometric figures and in this context an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
