Stereoscope

Stereoscope

A stereoscope is a device that creates the illusion of a three-dimensional image by presenting two separate pictures, each taken from a slightly different angle, to each eye. This mimics the way that the eyes naturally perceive depth in the real world. The stereoscope achieves this effect by using two cameras to capture the same scene from slightly different perspectives, and then presenting the resulting images to the viewer in a way that allows them to merge into a single, three-dimensional image.From: Victorian Material Culture [2023], A binocular parallel rendering method for VR globes [2020]

Stereoscope and stereoscopic photography

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Published in Tatiana Kontou, Victoria Mills, Richard Menke, Victorian Material Culture, 2023

Tatiana Kontou, Victoria Mills, Richard Menke

The principle of the stereoscope is copied from nature: i.e., when both eyes are employed in the examination of an object, two separate pictures, embracing dissimilar forms, are impressed upon the retinae, and produce the effect of solidity; if the pictures formed at the back of the eyes could be examined by another person with a stereoscope, they would come together, and also produce the effect of solidity. Stereoscopic pictures are obtained by exposing sensitized paper in the camera to the picture of an object taken in two positions, or two cameras are employed to obtain the same result. By taking one of the semi-lenses in each hand, and looking at the two pictures, the over-lapping of the spectral images becomes very apparent, so that the combined spectral images, and not the pictures themselves, are seen when the people look into a stereoscope.

A binocular parallel rendering method for VR globes

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Published in International Journal of Digital Earth, 2020

Wumeng Huang, Jing Chen, Mengyun Zhou

Virtual reality can generate the immersive feeling of being personally on the scene (Skarbez, Frederick, and Whitton 2018; Hruby, Ressl, and de la Borbolla Del Valle 2019), which is mainly because it adopts a scene rendering mechanism based on binocular vision (Kaehler and Bradski 2016). As shown in Figure 2, this mechanism must open two cameras to observe the scene at the same time, form the binocular images with parallax by means of controlling the relative distance of two cameras, and eventually achieve the stereoscope effect of a 3D scene according to the binocular image.

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Stereoscope and stereoscopic photography

A binocular parallel rendering method for VR globes