Acutance

Acutance

An objective measure of the ability of an optical system to show a sharp edge between two contiguous regions, one of high and the other of low illuminance in object space.

This is auto-generated content. You can help to improve it.

0 0

Improve it

Add an image

Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Earth science
Category: Mapping science
Company: American Congress on Surveying & Mapping
Product:
Acronym-Abbreviation:

Collect to Blossary

Other Languages:

Related terms

acutance

Software; Image processing

A measure of the sharpness of the edges in an image.

acute

Natural environment; Coral reefs

Sudden or brief.

acute

Education; SAT vocabulary

Having fine and penetrating discernment.

acute

Biology; Botany

sharply pointed; converging edges making an angle of less than 90°

acute

Plants; Botany

Terminating in a distinct but not protracted point, the converging edges separated by an angle less than 90 degrees.

acute

Health care; Diabetes treatment

Describes something that happens suddenly and for a short time. Opposite of chronic, or long lasting.

subtropical

Earth science; Mapping science

Relating to the warmest region of the Temperate Zones that border on the Torrid Zone.

sky

Earth science; Mapping science

The region above and beyond the Earth, as it is seen looking up from the ground. Sky looks blue during the day and dark at night.

South Pole

Earth science; Mapping science

The most southern point of the Earth. The South Pole is the southern end of the axis on which the Earth rotates.

prime meridian

Earth science; Mapping science

The line of longitude that passes through the town of Greenwich, England, and that measures 0 degree. It is the line from which other longitude lines are measured.

planet

Earth science; Mapping science

A celestial body revolving around a sun in a nearly circular orbit. This definition excludes comets, which have highly elliptical orbits. However, it may also exclude some of ...

area of error

Earth science; Mapping science

A figure within which the true location of a point whose location has been determined by measurement is believed to lie, with stated degree of probability.