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URSI's original objective (to encourage "scientific studies of radiotelegraphy, especially those which require international cooperation") has been broadened to include all radio science, from telecommunications to radio astronomy, acquisition of radar information about distant passive objects, studies of the radiation stimulated or ...
Digital imaging was developed in the 1960s and 1970s, largely to avoid the operational weaknesses of film cameras, for scientific and military missions including the KH-11 program. As digital technology became cheaper in later decades, it replaced the old film methods for many purposes.
TDI is more of an operating mode of an image sensor than a separate type of imaging device altogether, even if technical optimizations for the mode are also available. The most used way to perform TDI is called dTDI from digital Time Delay Integration, which is software-based and independent of the type of underlying imaging sensor.
Digital modeling and fabrication is a design and production process that combines 3D modeling or computing-aided design (CAD) with additive and subtractive manufacturing. Additive manufacturing is also known as 3D printing , while subtractive manufacturing may also be referred to as machining , [ 1 ] and many other technologies can be used to ...
Digital image correlation and tracking is an optical method that employs tracking and image registration techniques for accurate 2D and 3D measurements of changes in images. This method is often used to measure full-field displacement and strains , and it is widely applied in many areas of science and engineering.
Digital imaging or digital image acquisition is the creation of digital images, typically from a physical object. The term is often assumed to imply or include the processing , compression , storage , printing , and display of such images.
In 2003 DALSA introduced a digital cinema camera (the Origin camera system), but despite remarkable imaging performance the system was not a commercial success and the project was wound down in 2009. [ 5 ] [ 6 ] In 2007, it was redesigned to provide a better image output and was renamed the Dasla Origin II, later that same year the Evolution ...
Instead of X-ray film, digital radiography uses a digital image capture device. This gives advantages of immediate image preview and availability; elimination of costly film processing steps; a wider dynamic range, which makes it more forgiving for over- and under-exposure; as well as the ability to apply special image processing techniques ...