Stereo-skiagram - 'Coronary Arteries of Heart', right and left views
Maker
Alfred George Fryett (b.1862, d.1930)
Date
Circa 1900
Description
Two photographs, right view and left view.
Stereoscopy is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision. Originally, stereogram referred to a pair of stereo images which could be viewed using a stereoscope.
Most stereoscopic methods present a pair of two-dimensional images to the viewer. The left image is presented to the left eye and the right image is presented to the right eye. When viewed, the human brain perceives the images as a single 3D view, giving the viewer the perception of 3D depth.
Skiagrapher was the term used for a radiographer until the end of the First World War. In the early days, a skiagram, (or skiagraph), was the term used for a radiograph.
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Object detail
signatures ▫ in ink at lr cnr: 'A.G. Fryett.' ▫ each
name/inscriptions ▫ in pencil at ur cnr: 'R.' ▫ right view
name/inscriptions ▫ in pencil at ur cnr: 'L.' ▫ left view
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