Systems and methods of determining image scaling

An example system includes two objects each having a known dimension and positioned spaced apart by a known distance, and a fixture having an opening for receiving an imaging device and for holding the two objects in a field of view of the imaging device such that the field of view of the imaging de...

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Bibliographische Detailangaben
Hauptverfasser:	Miller, Brian T, Berry, Wayne A, Fraij, Christina I, Tat, Hong H, Schaffer, Michael J, Zenkner, Grant C, Wu, Jason, Downs, Kerth J
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GYROSCOPIC INSTRUMENTS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEASURING MEASURING ANGLES MEASURING AREAS MEASURING DISTANCES, LEVELS OR BEARINGS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEDICAL OR VETERINARY SCIENCE NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SURGERY SURVEYING TESTING
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Beschreibung
Zusammenfassung:	An example system includes two objects each having a known dimension and positioned spaced apart by a known distance, and a fixture having an opening for receiving an imaging device and for holding the two objects in a field of view of the imaging device such that the field of view of the imaging device originates from a point normal to a surface of the base. The fixture holds the imaging device at a fixed distance from an object being imaged and controls an amount of incident light on the imaging device. An example method of determining image scaling includes holding an imaging device at a fixed distance from an object being imaged, and positioning the two objects in the field of view of the imaging device such that the field of view of the imaging device originates from a point normal to a line formed by the known distance.