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  2. Picture archiving and communication system - Wikipedia

    en.wikipedia.org/wiki/Picture_archiving_and...

    A picture archiving and communication system ( PACS) is a medical imaging technology which provides economical storage and convenient access to images from multiple modalities (source machine types). [ 1] Electronic images and reports are transmitted digitally via PACS; this eliminates the need to manually file, retrieve, or transport film ...

  3. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas or cell phone towers is affecting human health. [ 1] Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. Other digital wireless systems, such as data communication ...

  4. Image quality - Wikipedia

    en.wikipedia.org/wiki/Image_quality

    Image quality can refer to the level of accuracy with which different imaging systems capture, process, store, compress, transmit and display the signals that form an image. Another definition refers to image quality as "the weighted combination of all of the visually significant attributes of an image". [ 1]: 598 The difference between the two ...

  5. Graphic communication - Wikipedia

    en.wikipedia.org/wiki/Graphic_communication

    Graphic communication as the name suggests is communication using graphic elements. These elements include symbols such as glyphs and icons, images such as drawings and photographs, and can include the passive contributions of substrate, colour and surroundings. It is the process of creating, producing, and distributing material incorporating ...

  6. Communications system - Wikipedia

    en.wikipedia.org/wiki/Communications_system

    Communications system. A communications system or communication system is a collection of individual telecommunications networks systems, relay stations, tributary stations, and terminal equipment usually capable of interconnection and interoperation to form an integrated whole. The components of a communications system serve a common purpose ...

  7. Signal-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Signal-to-noise_ratio

    Definition. One definition of signal-to-noise ratio is the ratio of the power of a signal (meaningful input) to the power of background noise (meaningless or unwanted input): where P is average power. Both signal and noise power must be measured at the same or equivalent points in a system, and within the same system bandwidth .

  8. Picture Exchange Communication System - Wikipedia

    en.wikipedia.org/wiki/Picture_Exchange...

    The Picture Exchange Communication System ( PECS) is an augmentative and alternative communication system developed and produced by Pyramid Educational Consultants, Inc. [ 1] PECS was developed in 1985 at the Delaware Autism Program by Andy Bondy, PhD, and Lori Frost, MS, CCC-SLP. [ 2] The developers of PECS noticed that traditional ...

  9. Visual communication - Wikipedia

    en.wikipedia.org/wiki/Visual_communication

    Visual communication is the use of visual elements to convey ideas and information which include (but are not limited to) signs, typography, drawing, graphic design, illustration, industrial design, advertising, animation, and electronic resources. [ 1] Visual communication has been proven to be unique when compared to other verbal or written ...