Projections implement constraints on an object in a way that minimizes the change in the object as measured by the Euclidean norm Fourier modulus projection adjusts the moduli of the components of an object's Fourier transform to agree with known values without changing the corresponding phases Viewed as an operation which modifies an object in the "object domain", Fourier modulus projection acting on an object A is expressed as Pf(A) = F-1[ Fd exp(i Arg F(A) ) ] (the vector of phases of the Fourier transform of A, exp(i Arg F(A) ), is multiplied componentwise by the vector of Fourier modulus data, Fd, and the result is inverse transformed) Support projection, the operation which implements the support constraint, sets pixels (voxels, etc ) outside of the known support of the object to zero
Data on population and vital rates derived for future years based on statistics from population censuses, vital registration systems, or sample surveys pertaining to the recent past, and on assumptions about future trends
A projection is a mathematical or geometric method of converting a three-dimensional, earth-based entity to a two-dimensional map of that region Different projections possess different qualities, including accuracy in terms of Area, Direction or Distance
Different ways of projecting the surface of the globe onto a flat screen or sheet of paper are called projections The choice of a projection can influence how the world is perceived Most of the maps shown in this first phase of the Atlas of Global Inequality use the Peters Projection This is an equal area projection, meaning that it shows the size of different areas of the world relatively evenly But this projection does not portray shape and direction accurately See the page of Map Projections for more information
Any of several systems of intersecting lines that allow the curved surface of the earth to be represented on a flat surface. The set of mathematics used to calculate coordinate positions
a defense mechanism, operating unconsciously, in which what is emotionally unacceptable in the self is unconsciously rejected and attributed (projected) to others projective tests diagnostic tests in which the test taker "projects" some aspect of his or her personality in response to the presentation of ambiguous test materials
In cartography, the method of distorting the curved shape of the earth onto the flat surface of a map Affects how one measures distance and bearings Canadian topographic maps use Transverse Mercator projection Lambert Conformal is another commonly used projection Do not confuse with datum
When referring to musical instruments, projection is used to describe the carrying power of its tone and the ability to be heard clearly in ensemble Back
A method used to flatten a 3-D object (the earth in this case) so that it can be viewed in two dimensions See also our description of projections used by the satellite station
A map or a geospatial database is a flat representation of data located on a curved surface A projection is a device for producing all or part of a round body on a flat sheet This projection cannot be done without distortion, so the cartographer must choose which characteristic (distance, direction, scale, area, or shape) that is to be emphasized at the expense of the other characteristics (Snyder, 1982) All spatial data in the program are represented in the Universal Transverse Mercator (UTM) coordinate system that is based on the transverse mercator projection applied between 84 degrees north and 80 degrees south latitude
In Psychoanalytic Theory, the defense mechanism whereby we transfer or project our feelings about one person onto another Projective Techniques A generic term for the psychological procedures used to measure personality which rely on ambiguous stimuli
The use of econometric models to forecast the future performance of a company, country, or other financial entity using historical and current information
The psychological mechanism by which a person tries to escape from the conciousness of his problems by projecting his own characteristics and qualities onto others Anxiousness and alienation results Only interiorization stops the process of projection
A projection is an estimate of a future amount. the company's projection of 11 million visitors for the first year. sales projections. = forecast, estimate
the fundamental law of mind: projection makes perception -- what we see inwardly determines what we see outside our minds w-m: reinforces guilt by displacing it onto someone else, attacking it there and denying its presence in ourselves; an attempt to shift responsibility for separation from ourselves to others r-m: the principle of extension, undoing guilt by allowing the forgiveness of the Holy Spirit to be extended (projected) through us
(psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else any solid convex shape that juts out from something
The representation of something; delineation; plan; especially, the representation of any object on a perspective plane, or such a delineation as would result were the chief points of the object thrown forward upon the plane, each in the direction of a line drawn through it from a given point of sight, or central point; as, the projection of a sphere
A projection is a potential future evolution of a quantity or set of quantities, often computed with the aid of a model Projections are distinguished from predictions in order to emphasise that projections involve assumptions concerning, e g , future socio-economic and technological developments that may or may not be realised, and are therefore subject to substantial uncertainty See also Climate projection; Climate prediction
The method by which the curved surface of the globe is represented on a flat sheet of paper There are dozens of different projections for different purposes
a kind of unconscious identification with the object (participation mystique) All projections cause counter-projections; that and being spellbound into living out the projection are very close to M Klein's "projective identification " There are personal and collective projections National or global crises feed collective projections
any structure that branches out from a central support the representation of a figure or solid on a plane as it would look from a particular direction a prediction made by extrapolating from past observations the projection of an image from a film onto a screen the acoustic phenomenon that gives sound a penetrating quality; "our ukuleles have been designed to have superior sound and projection"; "a prime ingredient of public speaking is projection of the voice"
the acoustic phenomenon that gives sound a penetrating quality; "our ukuleles have been designed to have superior sound and projection"; "a prime ingredient of public speaking is projection of the voice"
The distance between the tip of the nose and the facial plane ( For people who can't exactly understand this concept, think of Pinocchio Each time he lied, his nasal tip projection increased!) See associated term rotation
Powder of projection, or the Philosopher's Stone A powder supposed to have the virtue of changing baser metals into gold or silver A little of this powder, being cast into molten metal of the baser sort, was to project from it pure gold or silver Education may be called the true powder of projection
A method of representing the earth's three-dimensional surface as a flat two-dimensional surface This normally involves a mathematical model that transforms the locations of features on the earth's surface to locations on a two-dimensional surface Because the earth is three-dimensional, some method must be used to depict the map in two dimensions Therefore, such representations distort some parameter of the earth's surface, be it distance, area, shape, or direction There are a variety of map projections, but all are generally of three basic types; these are the Azimuthal, conical and cylindrical projections For example, the Transverse Mercator Projection is a variant of the cylindrical projection A more complete explanation is available in the Standards Section
an estimate, based on assumptions about future trends in births, deaths, and migration, of a demographic characteristic such as population or number of households Forecasts and projections are terms that are often used interchangeably