The principle of three-dimensional diagram and how to treat it

Stereograph: An image in which a three-dimensional image is hidden in a two-dimensional image. Stereograph principle: there is a certain distance between people's eyes, which causes some differences in the images of objects in their eyes. 1.2: the development history of three-dimensional stereogram The earliest people who studied the principle of stereoscopic imaging in history were Euclid and Da? Finch. 1838, Charles of England? Sir Charles Wheastone invented Stereo Pair (that is, two images depicting the same scene but with stereo images) and its viewer, which became the pioneer of parallax stereo technology. 1839, people discovered a stereo camera, which has two lenses arranged in parallel and two negatives exposed at the same time. Although the two photos taken are the same scene, the shooting angles are slightly different, and these two photos constitute a three-dimensional double picture. In the second half of last century and the beginning of this century, stereoscopic double painting has always been a very fashionable and popular technology in western Europe, and gradually merged with art, and a large number of stereo photo and paintings were created. At the same time, such works began to spread to the East. With the appearance and development of computers, stereoscopic image technology has undergone substantial changes. 1959, radar expert baylor? Dr Guriz mentioned the principle of radar imaging. For the first time, two random point stereograms were made by computer. The great significance of Dr. Guriz's work lies in that he proved for the first time that every picture in a stereogram is not necessarily a decorative scene, but a meaningless random lattice. But the superposition of two pictures can form a certain stereoscopic image. 1979, Christopher? Dr.Christopher Tyler achieved the most important breakthrough in parallax stereoscopic image technology. He invented a single-screen random point three-dimensional image (Single _Picture R.D.S), which is essentially a regular horizontal repetition and combination of a large number of random points. Due to the distance between human eyes, the horizontal width of two stereoscopic images should not exceed 6.2cm, which greatly limits its application scope, and the single-screen stereoscopic image invented by Dr. Taylor has broken through this limitation. From then on, people can make stereoscopic images with any width as needed. In this way, its application field is very broad. In recent years, people have been exploring and creating on the basis of Taylor's work. For example, draw random points with different colors to get a color gamut stereogram; By processing random points into small patterns, such as leaves, flowers, stripes, etc. , you can get a realistic three-dimensional pattern closer to the natural scenery. Obviously, the three-dimensional map technology can be applied to the printing of fabrics and clothing, the pattern design of wallpaper, murals and tiles, the packaging and decoration of products, the production of arts and crafts and many other fields. It is also a strong discipline for popular science education and children's intellectual development. To see a three-dimensional picture may require you to cross your eyes. First, try to treat the two points in the picture below as one point. Let your eyes rest for a while, then aim at two points with a slightly blurred line of sight like looking into the distance, and you will see that you can separate them from the two points.