BG66279B1 - Method and device for converting a two-dimensional image into a three-dimensional one - Google Patents

Abstract

The method and the device find application in stereoscopic visualization. The method involves projecting the two-dimensional image through at least one converter (3) of the two-dimensional image intoa three-dimensional one on the eyes of the observer (1L and 1R), who mentally merges the two obtained images into one three-dimensional image. The converter (3) divides the two-dimensional image intoat least two parts, ensuring that one eye (1L) of the observer sees mainly half of the two-dimensional image, while the other eye (1R) sees mainly the other half of the two-dimensional image. The device consists of consecutively arranged two-dimensional image source (2) and at least one converter (3) realized by at least two alternating zones (A and C) with opposite optical properties, which are polarization or brightness. Between the zones (A and C) there are transitional zones (B). The converter (3) may be a screen with a low degree of opacity or reflecting with a high degree of transparency.

Description

Technical field

The invention relates to a method and apparatus for converting two-dimensional images into three-dimensional images, which are useful in the field of stereoscopic imaging.

BACKGROUND OF THE INVENTION

A method and a device for converting a two-dimensional image into three-dimensional are known [1]. The known method is to design the entire moving two-dimensional image on each of the observer's eyes through a corresponding polarization filter with a time difference and the subsequent mental fusion of the two different two-dimensional images into one three-dimensional image. This method is implemented with the known device, consisting of sequentially placed two-dimensional moving image source and polarizing filters in front of it and in front of each eye of the observer.

The known method and device only convert two-dimensional moving images into 3D in a strictly defined direction and cannot convert static two-dimensional images into three-dimensional.

It is an object of the invention to provide a method and apparatus for converting both static and moving two-dimensional images into three-dimensional images.

SUMMARY OF THE INVENTION

This problem is solved by a method of converting a two-dimensional image into three-dimensional image, in which the two-dimensional image is projected through at least one two-dimensional image converter into three-dimensional on the eye of the observer, who mentally blends the images from both eyes of the observer into one three-dimensional image. According to the invention, the two-dimensional image is enclosed by at least one transducer in at least two parts in such a way that it provides one observer's eye to see predominantly half of the two-dimensional image and the other eye to see predominantly the remaining portion of the two-dimensional image.

This task is also solved by a device for converting a two-dimensional image into a three-dimensional, realizing method, consisting of sequentially placed two-dimensional image source in front of the observer's eyes and according to the invention at least one two-dimensional image converter into three-dimensional, realized as at least two alternating areas with opposite optical properties.

Any two alternating zones with opposite optical properties may be coupled to a transition zone with smoothly varying optical properties of the same type as the optical properties of alternating zones with opposite optical properties.

Alternating zones with opposite optical properties can be realized as zones with opposite polarization, where polarization glasses with opposite polarization of their two filters are placed in front of the eyes of the observer and after the two-dimensional converter in the three-dimensional image.

In another embodiment of the invention, alternating zones with opposite optical properties are zones with opposite brightness.

In another embodiment, the two-dimensional image converter in three-dimensional is implemented as transparent and opaque filters in front of each eye of the observer. The realization of such a transducer may be like glasses placed before the eyes of the observer.

It is possible that the two-dimensional image converter is implemented in 3D with a low opacity screen.

It is possible that the 2D image converter is designed to be a 3D display with a high degree of transparency.

Alternating zones with opposite optical properties may be zones realized by fluids with opposite polarization.

An advantage of the method and device according to the invention is the ability to convert both static and moving

66279 Bl two-dimensional images in three-dimensional, which is due to the activation of the visual database in the brain of the observer, formed on the basis of previous visual acts.

An additional advantage of the method and the device is the long lasting comfortable viewing, which is due to the equal participation of both eyes in the observation of the projected on the eye, which also allows for more effective visual scanning of the image. The equal involvement of the two eyes of the observer psychologically simulates binocular observation, thus creating a heightened illusion of depth.

Another advantage of the method and device is that the location of the image frame is refined as a reference plane due to its binocular observation.

Explanation of the annexed figures

The invention is illustrated by several exemplary embodiments shown in the accompanying drawings, where:

Figure 1 is a perspective view of a 3D device in 3D according to the invention implemented with a single converter;

Figure 2 is a three-dimensional image converter in three-dimensional with two zones A and C with opposite optical properties and a transition zone B with smoothly varying optical properties of the same type;

Figure 3 illustrates the formation of the transition zone B;

Figure 4 shows another exemplary embodiment of the 3D image converter in 3D;

Figure 5 is a further exemplary embodiment of a two-dimensional to three-dimensional image converter.

Examples of carrying out the invention

The device for converting the two-dimensional image into the three-dimensional image shown in FIG. 1 consists of sequentially facing one observer eyes 1L and 1R one after the other and a two-dimensional image source 2, a three-dimensional 3D image converter 3, and polarizing glasses 4 in front of the observer 1L and 1R eyes. The 2D image transducer in 3D shown in Figure 2 has three zones A, B and C. Zone A is a polarizing filter that covers the portion of the image projected on the observer's left eye IL. Zone B is a transition zone and is formed by the two overlapping observation zones B1 and B2 shown in FIG. 3. This provides a smooth visual transition between zones A and C. Zone C is a filter whose polarization is opposite to the polarization of zone A. Zone C covers the portion of the image intended for the right eye 1R of the observer.

In order to improve the 3D effect, more than one 3D transducer 3 may be spaced in the space between the eyes 1L and 1R of the observer and the 2D image source 2.

Alternating zones A and C are possible (FIG. 2) having opposite optical properties to be realized by fluids with opposite polarization.

An alternative embodiment of the two-dimensional to three-dimensional image converter implemented with interlocking polarizing filters can be realized according to FIG. 4, where the strips X and Y are realized by interlocking filters that cover the two-dimensional image.

In the above case, the two-dimensional image converter in three-dimensional 3 may also be implemented as glasses 4 disposed in front of the observer's ILh 1R eyes.

The two-dimensional to three-dimensional image converter can also be implemented by polarizing fluids. Zones A and C of FIG. 2 / are coated with interlocking polarizing fluids. Zone B is covered by a gradually varying mixture of interlocking polarizing fluids according to the percentages shown in FIG. 3.

An alternative embodiment of the two-dimensional to three-dimensional image converter 3 realized with interlocking polarizing fluids may be implemented according to

66279 Bl of FIG. 4, where the bands X and Y are realized by interlocking fluids and cover the two-dimensional image.

In another embodiment, the portion of the two-dimensional image intended for the left eye 1L consists of zone A, zone B1, overlapping in the process of observation with zone B2 and dark zone C. The darkening of the overlapping zones B2 and B2 is in percentage terms. levels shown in FIG. 3. The image for the right eye 1R consists of a dark part corresponding to the size and position of zone A, zone B2, overlapping upon observation with B1 and zone C. The darkening of the overlapping zones B1 and B2 is in accordance with FIG. 3.

An alternative embodiment of this embodiment of the invention is the addition of a complementary manner to the two images of opaque stripes / FIG. 4), which are arranged in the composite image according to the purposes of monocular stereo vision.

In a further exemplary embodiment of the invention, the two-dimensional image converter in three-dimensional 3 represents glasses 4 with transparent X and opaque Y filters alternating in each observation zone, as shown in FIG. 4. The occlusal configurations of this and the foregoing embodiments of the invention relate to the normal horizontal displacement of the observer's eyes, but the three-dimensional effect is not related to these particular occlusal configurations.

It is possible for the implementation of the zones with opposite optical properties to be realized by horizontal, vertical or inclined parallel stripes, as well as a staggered or other configuration / FIG. 5 /. An alternative method of enhancing the illusion of depth is the exploitation of the multilevel aspect of human vision, allowing the brain to create a three-dimensional picture of objects in a composition, which a three-dimensional picture is based on a very rapid sequence of visual acts, allowing the objects in the composition to be perceived seem to be in focus at the same time. In this case, the 3D image converter to 3D may be implemented as a low opacity screen or as a high opacity reflective screen. If a two-dimensional image is projected in a multi-screen environment with low opacity or in a multi-screen environment with high transparency, the multi-level perception mechanism is activated and the brain is free to interpret the image as three-dimensional, created by an unconscious series of visual acts focused on the different planes of the screens.

Application of the invention

The static or moving 2D image to be converted is projected through at least one 2D 3D image converter 3 on the observer's eyes 1L and 1R, which eliminates the feeling of having a flat screen between the observer and the image by activating the visual database in the brain of the observer, formed on the basis of previous visual acts. The transducer 3 may partition the two-dimensional image into at least two parts in such a way as to provide one eye 1L of the observer to see predominantly half of the image and the other eye 1R to see predominantly the remaining portion of the image.

The observer mentally merges the two-dimensional images from the left 1L and the observer's right 1R eye into one three-dimensional image. In the conversion process, when zones A and C are polarized, it is necessary to use glasses 4 located in front of the observer's eyes 1L and 1R and behind the 3D image converter 3D.

Claims (10)

Claims 1. A method of converting a two-dimensional image into three-dimensional image, wherein the two-dimensional image is projected through a two-dimensional image converter into three-dimensional on the eye of the observer, who mentally merges the images from both eyes of the observer into a three-dimensional image, characterized in that the two-dimensional image the image shall be partitioned by at least one converter into at least two parts in such a way as to provide one eye of the observer with a view primarily of 66279 Bl the two-dimensional image plane and the other eye to see mostly the rest of the two-dimensional image. A device for converting a two-dimensional image into three-dimensional, realizing the method of claim 1, comprising a series of two-dimensional image sources and a two-dimensional image converter sequentially disposed in front of the observer, characterized in that the transducer (3) is two-dimensional an image in 3D is at least one and is implemented as at least two alternating zones (A, C) with opposite optical properties. Device according to claim 2, characterized in that each two alternating zones (A, C) with opposite optical properties are connected to a transition zone (B) with smoothly changing optical properties of the same type as the optical properties of the alternating zones (A, C) with opposite optical properties. Device according to claims 2 and 3, characterized in that the alternating zones (A, C) with opposite optical properties are zones with opposite polarization, and before the eyes of the observer (1) and after the transducer (3) of the two-dimensional in 3D images are polarized glasses (4) with opposite polarization on both filters. A device according to claims 2 and 3, characterized in that the alternating zones (A, C) with opposite optical properties are zones with opposite brightness. Device according to Claims 2 and 3, characterized in that the transducer (3) of the two-dimensional image in three-dimensional is realized with transparent (X) and opaque (Y) filters alternating in front of each of the eyes (1L and 1R) of the observer. . Apparatus according to claim 6, characterized in that the transducer (3) is implemented as glasses located in front of the eyes (1L and 1R) of the observer. Device according to Claims 2 and 3, characterized in that the transducer (3) of the two-dimensional image is three-dimensionally implemented as a screen with a low degree of opacity. Device according to claims 2 and 3, characterized in that the transducer (3) of the two-dimensional image in three-dimensional is implemented as a reflective screen with a high degree of transparency. A device according to claims 2 and 3, characterized in that the alternating zones (A and C) with opposite optical properties are zones realized by fluids with opposite polarization.