Anaglyph 3D

In anaglyph 3D ( anaglyph or even anaglyph ) from Greek ἀνά Ana "on ", " sequential " and γλύφω glypho " carve ", " engraving ", or " represent " is understood in its original meaning basically any stereo projection (eg the 3D polarization projection is therefore, strictly speaking, a " Anaglyphenprojektion " ), but usually the " anaglyphisch " with a farbanaglyphische representation meant.

A Farbanaglyphenbild is a stereogram in which the two stereoscopic partial images are not next to each other, but superimposed. It uses the term anaglyph mostly for monochrome or color anaglyphs, where the fields are colored in complementary colors. There are now a variety of different methods with different color filters. Farbanaglyphes 3D is above all a very good value to be realized 3D method.

Operation

The anaglyph method, the image separation is through the use of color filters. The right and left field here are dyed in complementary colors. The separation of the two fields is done with special anaglyph glasses with appropriately colored glasses or color transparencies. Formerly Red were mostly used with green or blue. While watching the anaglyph image of the red filter extinguishes the red film image and the green image is black - the green filter removes the green color image and the red is black. Since both eyes now see different pictures produced in the brain again a spatial image.

Based on the red-cyan process, the procedure for generating a three-dimensional image will be described with reference to adjacent schemes here:

  • In the first line you can see the two-tone images for the left and right eye (seen in this representation with parallel view).
  • The second line shows that only the red channel of the left image, and the blue and green channels of the right image are used for the calculation.
  • The finished, colored anaglyph in line three is created by the combination of the red channel of the left and blue-green values ​​of the right image.

This method is not perfect. Are problematic when viewed through a red-cyan glasses, above all, the two balls left, as they have the filter colors of red and cyan, resulting in disturbing effects when viewed.

While using red-green- and red-blue glasses only two color channels of the available red, green, blue channels, cyan consists of a mixture of green and blue, which brings all three colors into play along with the red filter ( in the case of blue-yellow glasses, the same applies, since yellow is produced from red and green light ).

History

Developed anaglyphs 1853 by Wilhelm Rollman in Leipzig, in J. C. Poggendorfs Annals of Physics ( and Chemistry) published two new stereoscopic methods, a work with the title and it introduced the process. In the early days we used the anaglyph in particular in mathematical textbooks to illustrate the solid geometry and trigonometry. The 3D glasses included at that time the red filter in front of the left eye, the green in front of the right.

Special Anaglyphenkarten were also used in geography lessons. Variety of three-dimensional maps of the Pedagogical University of Potsdam methodology developed by the anaglyph and History - - For example, in the Department of Geography been tried with success and geography lessons. At the Potsdam teaching experiments with Anaglyphenmaterialien (1967-1970) has also embarked instead of the traditional inductive approach to the introduction of students into the card understanding of the deductive path of knowledge.

In the late 1970s Stephen Gibson improved the Farbanaglyphentechnik with its patented "Deep Vision " system, the other filter colors used: red in front of the right eye and cyan before the left. Cyan consists of equal parts of blue and green, and allows a better representation of true color. The Danish company Color Code 3D ​​enabled with a new method ( amber / blue) displaying anaglyph in even more realistic MORE DETAILED colors. The Filter of the "Color Code" glasses are blue in front of the right eye and yellow in front of the left. This system allows to involve the color red in the design of the 3D image. Since 2007, complements the California company " TrioScopics " the supply of low-cost color filter techniques between the colors green ( left) and magenta ( right). In 2008 in England, another Farbanaglyphenverfahren ( "Trio Scopics " ) was introduced, with green in front of the left eye and magenta in front of right. This color filter technology is particularly suitable for screen display and is used for some released on DVDs and BDs 3D movies.

Gallery

  • Dandelion 3D image ( anaglyph red / green, red filter on the right )
  • Reactor auxiliary systems 3D image ( anaglyph red / green, red filters on the left )
  • Jedutenhügel 3D image ( anaglyph red / cyan, red filter on the right )
  • Lilac flowers 3D image (color - anaglyph, red filter on the right )
  • Stereo - photograph of about 1906 Anaglyph
  • Digital Stereo Photography of 2009
  • A brass vessel as an example of a color code 3D ​​anaglyphs
  • Colored 3D Anaglyph for red-cyan glasses, motif: in the streets of Hvar, on the Croatian island of the same name
  • Colored 3D anaglyph from the stereo microscope for red-cyan glasses, Design: tapping screw
  • Anaglyph map of the Fiji island of Viti Levu
  • Colored 3D Anaglyph for red-cyan glasses. Theme: Leaf of a marsh marigold
  • Colored 3D Anaglyph for red-cyan glasses. Topic: 3D macro shot of a fly
  • Colored 3D Anaglyph for red-cyan glasses. Design: Cherry Blossom, Blossoming cherry tree
  • Colored 3D Anaglyph for red-cyan glasses. Theme: Historic City Hall, and James Church in 63486 Bruchkoebel, Main -Kinzig- Kreis, Hesse
  • Colored 3D Anaglyph for red-cyan glasses. Theme: Green Iguana at Dolphin Research Center, Grassy Key, Florida, USA
  • Anaglyph video of a tesseract
Polarized 3D system Hvar (city) Macro photography Kirschbaum Main-Kinzig-Kreis
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