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3D Stereoscopy

Stereoscopy (also called stereoscopics or 3D imaging) is a technique for creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision.

Most stereoscopic methods present two offset images separately to the left and right eye of the viewer.

How to use

Stereo mode is only available after loading two stereo file (for left and right eye).
It is done by selecting LOAD STEREO :


You can also invert both eyes using : ../rsrc/img/StereoInvert.jpg

Once the media are loaded for each eyes, stereo mode options can be used.
They are available in menu View > Stereo.

../rsrc/img/stereoMono.jpg Mono Display a single image (stereo mode inactive). Left eye image is displayed by default
../rsrc/img/stereoLeft.jpg Left eye View left eye image
../rsrc/img/stereoRight.jpg Right eye View right eye image
../rsrc/img/stereoAnaglyph.jpg Anaglyph Most common used mode because it works with any type of display monitor (LCD, CRT or projector). Anaglyph works by encoding each eye's image using filters of different (usually chromatically opposite) colors, typically red and cyan. Anaglyph images contain two differently filtered colored images, one for each eye. When viewed through the "anaglyph glasses", each of the two images reaches the eye it's intended for, revealing an integrated stereoscopic image
../rsrc/img/stereoInterlaced.jpg Interlaced This mode only works with a particular type of screen (e.g Zalman) because it requires the use of "polarized glasses". In this mode, two images are projected superimposed onto the same screen through polarizing filters or presented on a display with polarized filters
../rsrc/img/stereoActive.jpg Active A mode that requires hardware prerequisites such as a display monitor (CRT/LCD) settled at 85Hz or higher, an infrared transmitter, "active glasses" (e.g RealID Crystal or NVidia 3D Vision) and a graphic card with a vesa stereo port

Under stereo mode, a slider bar appears at the top. It allows you to define the "focal offset" which sets the gap (in pixel) between the left and right images.

../rsrc/img/Stereo_NoGap.jpg ../rsrc/img/Stereo_Gap.jpg

Note that in a stereo context, annotations have to be doubled (when saved or linked) to match with both eyes.

BUF Compagnie - Documentation. 2015-04-04.