direct image

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vir·tu·al im·age

an erect image formed by projection of divergent rays from an optical system.
Synonym(s): direct image

direct image

An image produced from radiation without secondary image receptors. Synonym: virtual image
See also: image
References in periodicals archive ?
Properties of direct image functor and inverse image functor are studied here in this paper, like coherence and exactness.
In this section, we study the theory of functors applied to the direct image functor of the formal structure sheaves.

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