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Digital Paper
Digital paper, also known as interactive paper, is patterned paper used in conjunction with a digital pen to create handwritten digital documents. The printed dot pattern identifies the position coordinates on the paper. The digital pen uses this pattern to store handwriting and upload it to a computer. The paper The dot pattern is a two-dimensional barcode; the most common is the proprietary Anoto dot pattern. In the Anoto dot pattern, the paper is divided into a grid with a spacing of about 0.3 mm, a dot is printed near each intersection offset slightly in one of four directions, a camera in the pen typically records a 6 x 6 groups of dots. The full pattern is claimed to consist of 669,845,157,115,773,458,169 dots, and to encompass an area exceeding 4.6 million km² (this corresponds to 73 trillion unique sheets of letter-size paper). The complete pattern space is divided into various domains. These domains can be used to define paper types, or to indicate th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NFCC
The PFF National Challenge Cup is an annual single-elimination tournament, knockout association football, football competition in men's domestic Football in Pakistan, Pakistani football within the Pakistan football league system. It is organized by and named after the Pakistan Football Federation. Initially named as ''Inter Departmental Championship'', it was introduced in 1979 as a football tournament for departmental selections and Pakistan Armed Forces, armed forces teams excluded from the National Football Championship (Pakistan), National Football Championship of Pakistan''.'' Khan Research Laboratories F.C., Khan Research Laboratories have won the most titles (six). WAPDA F.C., WAPDA are the current champions, winning the 2023–24 PFF National Challenge Cup, 2023–24 edition courtesy of a 1–0 win against SA Gardens FC, SA Gardens in the final. Background Introduced in 1979 to offer nationwide competition to departmental selections and Pakistan Armed Forces, armed force ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LeapFrog Tag Lowercase A With Dot Pattern
Leapfrog is a children's game of physical movement of the body in which players vault over each other's stooped backs. History Games of this sort have been called by this name since at least the late sixteenth century. ''''. Accessed 2008-10-21. Gameplay The first participant remains still after putting their hands on their own knees while bending over, which is called ''giving a back''. With dispatch the next player swiftly dashes forward, and (while in forward-motion), briefly plants their hands u ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Pen
A digital pen is an input device which captures the handwriting or brush strokes of a user and converts handwritten analog information into digital data, enabling the data to be utilized in various applications. This type of pen is used in conjunction with a graphics tablet, tablet computer, smartphone or digital notebook. The input device captures the handwriting data, that, once digitized, can be displayed on a screen. Common digital pen protocols are: * Microsoft Pen Protocol (MPP) (formerly N-trig) * Wacom AES 1.0 and 2.0 * Wacom EMR * Universal Stylus Initiative (USI) * Apple Pencil Active Projected Capacitive (APC) * Bluetooth Examples of digital pens: * Microsoft Surface Pen * Samsung S Pen * Google Pixelbook Pen * Apple Pencil Technology groups Active Active pens, such as N-trig's DuoSense Pen, include electronic components whose signals are picked up by a mobile device's built-in digitizer and transmitted to its controller, providing data on pen location, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barcode
A barcode or bar code is a method of representing data in a visual, Machine-readable data, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode readers, of which there are several types. Later, two-dimensional (2D) variants were developed, using rectangles, dots, hexagons and other patterns, called ''2D barcodes'' or ''matrix codes'', although they do not use bars as such. Both can be read using purpose-built 2D optical scanners, which exist in a few different forms. Matrix codes can also be read by a digital camera connected to a microcomputer running software that takes a photographic image of the barcode and analyzes the image to deconstruct and decode the code. A mobile device with a built-in camera, such as a smartphone, can function as the latter type of barcode reader usin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anoto
Anoto Group AB (formerly C Technologies) is a Swedish cloud-based software provider (SaaS). Products Digital Pen The Digital Pen is an ink pen combined with a digital camera that digitally records everything that is written. It works by recognizing a non-repeating dot pattern printed on the paper. The non-repeating nature of the pattern means that the pen is able to determine which page is being written on, and where on the page the pen is. The dot pattern can be printed on a professional offset printing press or on a laser printer. Dots are printed in black; other colors of ink are invisible to the pen's IR sensor. On a color laser printer, CMY can be mixed to produce a near-black color that is human-readable. For offset printing, Anoto developed an ink color called "Anoto substitute black", a non-carbon-based black ink that is invisible in the IR region, allowing the user to include human-readable black marks with the dot pattern without interference. While some of Anot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space
Space is a three-dimensional continuum containing positions and directions. In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as '' spacetime''. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. In the 19th and 20th centuries mathematicians began to examine geometries that are non-Euclidean, in which space is conceived as '' curved'', rather than '' flat'', as in the Euclidean space. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean geometries provide a bet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subset
In mathematics, a Set (mathematics), set ''A'' is a subset of a set ''B'' if all Element (mathematics), elements of ''A'' are also elements of ''B''; ''B'' is then a superset of ''A''. It is possible for ''A'' and ''B'' to be equal; if they are unequal, then ''A'' is a proper subset of ''B''. The relationship of one set being a subset of another is called inclusion (or sometimes containment). ''A'' is a subset of ''B'' may also be expressed as ''B'' includes (or contains) ''A'' or ''A'' is included (or contained) in ''B''. A ''k''-subset is a subset with ''k'' elements. When quantified, A \subseteq B is represented as \forall x \left(x \in A \Rightarrow x \in B\right). One can prove the statement A \subseteq B by applying a proof technique known as the element argument:Let sets ''A'' and ''B'' be given. To prove that A \subseteq B, # suppose that ''a'' is a particular but arbitrarily chosen element of A # show that ''a'' is an element of ''B''. The validity of this technique ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Resolution
Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly ''resolved''. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, TV lines, or TVL), or to angular subtense. Instead of single lines, line pairs are often used, composed of a dark line and an adjacent light line; for example, a resolution of 10 lines per millimeter means 5 dark lines alternating with 5 light lines, or 5 line pairs per millimeter (5 LP/mm). Photographic lens are most often quoted in line pairs per millimeter. Types The resolution of digital cameras can be described in many different ways. Pixel count The term ''resolution'' is often considered eq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon
Carbon () is a chemical element; it has chemical symbol, symbol C and atomic number 6. It is nonmetallic and tetravalence, tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 electrons. It belongs to group 14 of the periodic table. Carbon makes up about 0.025 percent of Earth's crust. Three Isotopes of carbon, isotopes occur naturally, carbon-12, C and carbon-13, C being stable, while carbon-14, C is a radionuclide, decaying with a half-life of 5,700 years. Carbon is one of the timeline of chemical element discoveries#Pre-modern and early modern discoveries, few elements known since antiquity. Carbon is the 15th abundance of elements in Earth's crust, most abundant element in the Earth's crust, and the abundance of the chemical elements, fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Carbon's abundance, its unique diversity of organic compounds, and its unusual abi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infrared Light
Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those of red light (the longest waves in the visible spectrum), so IR is invisible to the human eye. IR is generally (according to ISO, CIE) understood to include wavelengths from around to . IR is commonly divided between longer-wavelength thermal IR, emitted from terrestrial sources, and shorter-wavelength IR or near-IR, part of the solar spectrum. Longer IR wavelengths (30–100 μm) are sometimes included as part of the terahertz radiation band. Almost all black-body radiation from objects near room temperature is in the IR band. As a form of EMR, IR carries energy and momentum, exerts radiation pressure, and has properties corresponding to both those of a wave and of a particle, the photon. It was long known that fires emit invis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Under Color Removal
In printing, under color removal (UCR) is a process of eliminating overlapping yellow, magenta, and cyan that would have added to a dark neutral (black) and leaving the black ink only, called a ''full black'', during the color separation process. Under color removal is used in '' process color'' printing. Black ink used to add details and darkness in shadowed areas is called a ''skeletal black''. With current ink technology, the total CMYK ink in the shadows refuses to stick after it reaches the dark shadows (usually above a 250% total CMYK coverage), and begins to peel off. To prevent this, printers developed UCR, in which neutral shadowswhich would have normally been produced by overprinting the four inks ''cyan'', ''magenta'', ''yellow'' and ''black'' on top of each other (high ink coverage)are replaced with the single layer of ''black''. UCR removes the color inks ''under'' the black, resulting in a single layer of ink which sticks to the sheet better, and saves on the consum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE Computer
''Computer'' is an IEEE Computer Society practitioner-oriented magazine issued to all members of the society. It contains peer-reviewed articles, regular columns, and interviews on current computing-related issues. ''Computer'' provides information regarding current research developments, trends, best practices, and changes in the computing profession. Subscriptions of the magazine are provided free of cost to IEEE Computer Society members. ''Computer'' covers all aspects of computer science. Since 2009, it has a digital edition too. The current editor in chief (since 1 January 2020) is Jeff Voas of NIST. Its impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... was 1.94 for 2017, and 3.564 for 2018. The magazine is the recipient of the 2015 APEX Award for Publication E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
