Reflectance Paper
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Reflectance Paper
Reflectance paper is a surface that contains a lattice of mirrored dimples. The paper is printed with color and the angle-dependent reflectance function for each pixel of an image captured with a light field camera such as a Lytro. The image then displays differently depending on the angle of incident light in the viewing environment. This technique can be used for example to display the image of a sculpture with its direction-dependent shadow depending on the angle of the light. History As of 2012, researchers at the University of California, Santa Cruz, Hewlett-Packard Laboratories and 3M had created the first type of this kind of paper, using a hexagonal lattice of millimeter-sized dimples. Dimple depth was 50 µm The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Unit ..., represe ...
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Lytro
Lytro, Inc. was an American company founded in 2006 by Ren Ng which developed some of the first commercially available light-field cameras. Lytro began shipping its first generation pocket-sized camera, capable of refocusing images after being taken, in 8 GB and 16 GB versions on February 29, 2012.Diana Samuels, Silicon Valley / San Jose Business Journal.Lytro ships first cameras to lucky customers" Feb 29, 2012. Retrieved Apr 25, 2012. In April 2014, the company announced Lytro Illum, its second generation camera for commercial and experimental photographers. The Lytro Illum was released at $1,600. The Illum has a permanently attached 30–250mm (35mm equivalent) 2.0 lens and an articulated rear screen. In the fall of 2015, Lytro changed direction, announcing Immerge, a very-high-end VR video capture camera with companion custom compute server. Immerge was expected to ship in 2016, and be useful to studios trying to combine CGI-based VR with video VR. Lytro ceased operations ...
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University Of California, Santa Cruz
The University of California, Santa Cruz (UC Santa Cruz or UCSC) is a public university, public Land-grant university, land-grant research university in Santa Cruz, California. It is one of the ten campuses in the University of California system. Located on Monterey Bay, on the edge of the coastal community of Santa Cruz, the campus lies on of rolling, forested hills overlooking the Pacific Ocean. Founded in 1965, UC Santa Cruz began with the intention to showcase progressive, cross-disciplinary undergraduate education, innovative teaching methods and contemporary architecture. The residential college system consists of ten small colleges that were established as a variation of the Oxbridge collegiate university system. Among the Faculty is 1 Nobel Prize Laureate, 1 Breakthrough Prize in Life Sciences recipient, 12 members from the United States National Academy of Sciences, National Academy of Sciences, 28 members of the American Academy of Arts and Sciences, and 40 members o ...
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HP Labs
HP Labs is the exploratory and advanced research group for HP Inc. HP Labs' headquarters is in Palo Alto, California and the group has research and development facilities in Bristol, UK. The development of programmable desktop calculators, inkjet printing, and 3D graphics are credited to HP Labs researchers. HP Labs was established on March 3, 1966, by founders Bill Hewlett and David Packard, seeking to create an organization not bound by day-to-day business concerns. The labs have downsized dramatically; in August 2007, HP executives drastically diminished the number of projects, down from 150 to 30. As of 2018, HP Labs has just over 200 researchers, compared to earlier staffing levels of 500 researchers. With the Hewlett Packard Enterprise being spun off from Hewlett-Packard on November 1, 2015, and renamed to and HP Inc., the research lab also spun off Hewlett Packard Labs to Hewlett Packard Enterprise and HP Labs was kept for HP Inc. History As the Semiconductor Lab's fi ...
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Dimple
A dimple, also called a gelasin (, ) is a small natural indentation in the flesh on a part of the human body, most notably in the cheek. Numerous cultures believe that cheek dimples are a good luck charm that entices people who perceive them as physically attractive, but they are also associated with heroism and innocence, which has been included in literature for many centuries. Medical research debates whether cheek dimples can be inherited or which type of allele they are, but it is certain that humans with cheek dimples are more likely to have them in both cheeks. Depth and length appearances are affected by the shape of the skull and dimples can appear and disappear due to age. There are four types of facial dimples, including cheek, and the cleft chin (sometimes nicknamed a "chin dimple"). Overview Cheek dimples when present, show up when a person makes a facial expression, such as smiling, whereas a chin dimple is a small line on the chin that stays on the chin without m ...
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Digital Photography
Digital photography uses cameras containing arrays of electronic photodetectors interfaced to an analog-to-digital converter (ADC) to produce images focused by a lens, as opposed to an exposure on photographic film. The digitized image is stored as a computer file ready for further digital processing, viewing, electronic publishing, or digital printing. Digital photography spans a wide range of applications with a long history. In the space industry, where much of the technology originated, it pertains to highly customized, embedded systems combined with sophisticated remote telemetry. Any electronic image sensor can be digitized; this was achieved in 1951. The modern era in digital photography is dominated by the semiconductor industry, which evolved later. An early semiconductor milestone was the advent of the charge-coupled device (CCD) image sensor, first demonstrated in April 1970; the field has advanced rapidly and continuously ever since, paced by concurrent advances ...
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Science Of Photography
The science of photography is the use of chemistry and physics in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera, electronic camera internals, and the process of developing film in order to take and develop pictures properly. Optics Camera obscura The fundamental technology of most photography, whether digital or analog, is the camera obscura effect and its ability to transform of a three dimensional scene into a two dimensional image. At its most basic, a camera obscura consists of a darkened box, with a very small hole in one side, which projects an image from the outside world onto the opposite side. This form is often referred to as a pinhole camera. When aided by a lens, the hole in the camera doesn't have to be tiny to create a sharp and distinct image, and the exposure time can be decreased, which allows cameras to be handheld. Lenses A photographic lens is usually composed of several lens elements, which ...
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