JPH0447377A - Computer three-dimensional graphic system - Google Patents

Abstract

PURPOSE:To obtain a three-dimensional video in real time by synthesizing the form of a lenticular lens subjected to digital processing and a three- dimensional video subjected to digital processing to three-dimensionally to reproduce the image by the lenticular lens. CONSTITUTION:The variable density based on the distance is added to the picture of a drawing to express a stereoscopic feeling, and this picture is digitized and is inputted to a host computer to express a three-dimensional video. A pitch (a) and a diameter R of individual lens tops of a used lenticular lens are digitized and are inputted to the host computer and are superposed on the inputted three-dimensional video to output a video. Thus, pictures P, P,... projected on individual tops of the lenticular lens are three-dimensionally reproduced by a lenticular lens having the same form as data inputted to the host computer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a computer three-dimensional graphics system that three-dimensionally reproduces figures, characters, or images output directly from a host computer or via a database. .

[Conventional technology]

Recently, software and hardware for displaying figures, characters, or images three-dimensionally are being used in various fields, and clear three-dimensional images can be easily obtained on screens, television cathode ray tubes, and the like.

However, if you output a book or software that is displayed in three dimensions on a display and convert it into an image or printed matter, you will not get a three-dimensional graphic, but just a two-dimensional one. The only thing that can be done is

[Problems to be solved by the present invention]

The present invention has been made in view of the above circumstances, and includes digital processing of the shape of a lenticular lens in software that digitally processes three-dimensional figures, three-dimensional characters, or three-dimensional images that produce a three-dimensional image on a display. Polymerize the software and output the obtained figure, character or image directly or via a database. The object of the present invention is to provide a new computer three-dimensional graphics system that can be viewed three-dimensionally, that is, three-dimensionally, with the naked eye.

[Means for solving problems]

The present invention is.

a. A first step of inputting the digitally processed lenticular lens shape into the host computer. b. A second step of inputting the digitally processed three-dimensional figure, three-dimensional character, or three-dimensional image into the same host computer in an overlapping manner. Process.

A third step of outputting figures, characters, or images obtained by C0 polymerization.

d. A fourth step of reproducing the output figures, characters, or images into the aforementioned three-dimensional figures, three-dimensional characters, or three-dimensional images through a lenticular lens. It is valid as a summary.

[Effect]

The software that digitally processes the shape of the lenticular lens is superimposed on the software that digitally processes the 3D image, etc., and the resulting image is outputted and output as a 3D image, etc. through the lenticular lens. to be reproduced.

〔Example〕

Three-dimensional display of figures, two characters, one image, etc. by a computer usually uses techniques such as smoothly changing colors depending on perspective, adding shadows, and adding patterns to the surfaces of shapes. However, when printing this out and viewing it as a photograph, it is almost impossible to view it stereoscopically as a three-dimensional display, and a plain two-dimensional image is usually displayed.

Conventionally, various methods have been used to view these objects stereoscopically, such as a method of generating left and right parallax images, and an image opening/closing mechanism that utilizes the sun's bias, but no satisfactory method has yet been obtained.

The present invention will be described below based on embodiments with reference to the drawings.

FIG. 1 is an explanatory diagram showing the system of the present invention.

FIG. 2 displays the image before it is input into the computer. This image can express a three-dimensional effect by adding shading based on perspective, but when this is digitized and input to a host computer, a three-dimensional image is expressed on the display.

FIG. 3 is a side view of the lenticular lens used in the present invention. When the pitch 1 and the diameter R of each lens crest are measured, the overall shape of the lenticular lens is determined by K. The value of each R (e.g. a=0.2484~0.2
508m, R=0.1301~0.13131111
) is input into the host computer and overlaps with the previously input three-dimensional image, resulting in an output (lint-out or appearance on the screen) as shown in Figure 3. Of course, it is also possible to record and archive it as a database that can be output as necessary.

In this way, the images shown in FIG. 4 regarding the output figures, characters, images, etc. are reproduced into the original three-dimensional figures, characters, and images through the lenticular lens. That is, a three-dimensional figure or character image appearing on the display of the host computer can be seen. This is the image p, p, .
... is three-dimensionally reproduced using a lenticular lens having the same shape as that input into the host computer.

The lenticular lens is mainly used to view the printed image gI (Fig. 4), or to project an image similar to that shown in Fig. 4 from a host computer onto the lenticular lens forming the back side of the screen base. This can then be viewed on the opposite side of the screen group, ie, on the front side.

Further, as for the lenticular lens, it is not permissible to use the one shown in FIG. 3, but the one shown in FIGS. 5 to 7 is used. In either case, the images obtained by the left-eye or right-eye cameras are digitized in advance, input to a host computer, and the outputted images are reproduced using lens sheets and lenses for the left and right eyes separately and simultaneously. Lenses used for this purpose include those in which the left or right half of the peak is formed opaque, as shown in Figures 5 (i) and (ii), and those in Figure 6 (il, (it)). A book is shown in which the peaks are alternately opaque for the left or right eye.A variation of this is also used in which the opaque regions are alternately formed from one valley to the next. Figure 7 (1
) shows a case in which only the right or left side of the lens piece divided from the top of each lens is dark. These 5th~
The one shown in FIG. 7 is for the left eye or the right eye, and is used separately and simultaneously for each eye, making use of binocular parallax to make the three-dimensional effect more noticeable.

In addition, lenticular lenses include those in which the lens ridges near the center are high and the lens ridges on both sides are low, as shown in Figure 8 (1), and those in which the pitch is narrower on both sides, as shown in Figure 8 (11). There is something that is happening. Furthermore, the same figure (ii
A lens in which the focal length increases toward the center as shown in (l) is also in practical use. In both of these cases, the wider the lens sheet, the wider the field of view.

Even in large-sized three-dimensional images, a better three-dimensional effect can be obtained.

〔Effect of the invention〕

The present invention is based on the above configuration, and the shape of the digitally processed digitally processed error lens and the digitally processed three-dimensional image are superimposed and synthesized and output directly or from a database, and this is output directly or from a database. Since it is reproduced three-dimensionally using lenticular lenses, it can be used in many fields that require lenticular lenses, such as LCD televisions, 3D televisions, 3D optical fiber vision, 3D animation, 3D movies, and 3D photography. This invention is also applicable to various I-stars, billboards, etc., and is extremely useful in that it allows three-dimensional images to be obtained in real time.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the system of the present invention, Figure 2 is an explanatory diagram of a three-dimensional image used in the first step of the present invention, Figure 3 is an explanatory diagram of a lenticular lens, and Figure 4 is an illustration of polymerization. Explanatory diagram showing the image output of the synthesized three-dimensional image and the shape of the lenticular lens, Fig. 5 (1), (++
), FIG. 6 (1), (ii), FIG. 7 ((). (11) is an explanatory diagram showing a lenticular lens formed for the left eye or right eye, respectively, and FIG.
), 0ji1 are explanatory diagrams showing a modified lenticular lens that can be used in the present invention.

Claims (2)

[Claims] (1) A first step of inputting the digitally processed lenticular lens shape into the host computer, a second step of inputting the digitally processed three-dimensional figure, three-dimensional character, or three-dimensional image into the same host computer in an overlapping manner; A third step of outputting the figure, character, or image obtained by polymerization; and a fourth step of reproducing the output figure, character, or image into the aforementioned three-dimensional figure, three-dimensional character, or three-dimensional image through a lenticular lens. A computer three-dimensional graphic system consisting of processes. (2) The computer three-dimensional graphics system according to claim 1, wherein the lenticular lens in the fourth step has one for the left eye and one for the right eye.