EA045930B1 - METHOD FOR OBTAINING AN IMAGE ON A SET OF SURFACES - Google Patents

Description

The invention relates to a method for creating an advertising element, which can be made by any of the known manufacturing methods for placement, in particular, on surfaces of various configurations installed during the demonstration of public events, for example, during sports competitions.

The use of advertisements at public events, particularly sports arenas, is a well-known way to advertise brands, products and services. Such advertising is particularly effective when a sporting event is televised and the reach of potential users and observers of the advertisement becomes significant.

In the early stages of advertising in stadiums, it was common to use printed or other types of images on flat media, for example directly on the ground around the sports field, or even on the sports ground itself before the start of a match or at half-time. Stationary, vertically installed structures with advertising images placed on them were also used. But such forms of advertising were not effective enough or, as in the case of stationary structures, were not safe for persons operating near such installations. Conventional flat advertising located on the ground had a significant drawback in that television cameras installed around the sports arena did not provide the viewer with visually voluminous information printed on the advertisement.

Therefore, manufacturers of advertising images took the path of creating flat substrates with images printed on them, which, when broadcast from a certain television camera to the viewer, looked voluminous, standing vertically relative to the field of the sports arena.

An invention is known that describes an advertising image applied to a flat carrier, which is flat, lies in the same plane as the carrier, and includes a primary image element, which is advertising text and has first and second dimensions, and the primary image element when viewed it in a direction perpendicular to the plane of the carrier, has an angle α+90° between the first and second dimensions, and when viewed at a certain oblique angle between the observer and the image shows that the first and second dimensions form the plane of the advertising image, and it includes a secondary element of the image, representing advertising text in the third dimension and which, when viewed in a direction perpendicular to the plane of the carrier, forms an angle α+β between the first and third dimensions and an angle β+90° between the second and third dimensions and this secondary image element when viewed from a certain oblique angle to the image shows the third dimension, which appears perpendicular to the plane of the advertising image formed by the first and second dimensions, while the angles α and β are different from 0° (see Fig. patent for invention of the Russian Federation No. 2195713 dated March 25, 1988, IPC G09F 19/22).

This invention allows, thanks to a fairly easy-to-manufacture flat storage medium, to visualize the TV viewer in a clearly visible three-dimensional image, which is virtually located perpendicular to the one installed relative to the football field.

The disadvantage of this invention is that such image transformation can only be carried out from a certain observation point, i.e. when broadcasting any competition using only one television camera installed at a certain point. Other television cameras located in other installation locations broadcast to the viewer a flat substrate with advertising that cannot be read.

An invention is also known which is a system for obtaining a transformation of an image in such a way that when said transformation is placed on a surface which forms a horizontal plane and is visible to an observer from at least one corresponding viewing point, a virtual representation of the image appears in a position perpendicular to surface on which it is placed, and the image has a proportion resulting from the relationship between the height and length of the image itself, the system comprising means for capturing the proportions of the image to be converted; means for capturing the width that the image transformation should have; means for capturing the height of the virtual representation of the image that it should have; means for establishing coordinate axes at a point on a surface onto which an observer or observation point is orthogonally projected, said coordinate axes on the same horizontal plane corresponding to the surface on which the image transformation is located, the system also comprising a computer with a program for obtaining various image transformation parameters , necessary to create a flat image, virtually visible to a television viewer vertically located relative to the sports field, transmitted by a television camera that can be installed at different heights in the sports arena (see RF patent No. 2564640 dated 10/19/2010, IPC G06T 3/00).

The known invention makes it possible to obtain an image transformation regardless of the location of the viewing point in relation to the vertical placement, that is, despite the fact that the position of the observer may differ from the vertical position, the virtual representation of the image will appear in a position perpendicular to the surface, on which the transformation is placed. The disadvantage of this invention is that it can only be used on a flat carrier placed on a surface near the playing field. It cannot be used to place advertising on surfaces of different shapes or on a group of surfaces divided or connected in a certain way. An invention is also known relating to an advertising element for placement on a surface, a method for creating said advertising element and a method for capturing advertising images in a sports arena. The advertising element has a bottom side adapted to be placed on a surface, and a top side containing an advertising surface with advertising information, wherein the advertising surface includes a plurality of projections, each of which contains a first display surface with graphics applied to the surface, wherein said surface and said graphics oriented in the direction of a first predetermined viewing point, and a second display surface with a graphic applied to the surface, said surface and said graphics oriented in the direction of a second predetermined viewing point, wherein the advertising information comprises a first image consisting of a combined graphic on the first display surfaces, and a second image consisting of combined graphics on the second display surfaces (see RF patent No. 2615264 dated 07/03/2013, IPC G06F 19/14).

The known invention makes it possible to carry out different advertising of images for groups of viewers located at opposite locations. The disadvantage of this solution is that to achieve the stated goals, at least two observation sources are required, each for its own side of the visualization. In addition, this invention uses sets of planes with a given partition, which imposes restrictions on the placement of such media in places where the application surfaces have break points or there are no planes with a given partition.

The closest, in the opinion of the applicant, is a technical solution describing a visual advertisement that is applied to a substrate containing a first inverse perspective transformation of the image and a continuous second inverse perspective transformation of the image, where the images are inverted in relation to each other, and the first image, when the images visible in one direction, is the dominant image, and the second image is a supplementary image, while the second image is the dominant image, when the images are visible in the opposite direction, and the first image is a supplementary image (see International Application PCT/IB2013/059739 dated 29.10. 2013, IPC G06F 19/14). This well-known technical solution allows for the application and visualization of an image for viewers located on two mutually perpendicular planes, which allows advertising to be transmitted from different display points.

However, the disadvantage of this solution is that the actual image is limited to two mutually perpendicular planes, and on each of the planes a completely corresponding image is placed, which cannot be partially placed on one plane and partially on the other. This further limits the ability to effectively deliver advertising to the observer.

The objective of the present invention is to create a method for producing such an advertising image, the individual elements of which, when placed on a set of surfaces of objects of various shapes, when viewed from a certain point of view, appear to the observer as a single advertising element corresponding to a real advertising image. This solution allows you to expand the possibilities of advertising at public events, especially during their television broadcast, and increase the visibility of the advertising image.

To accomplish these and other tasks, a method is claimed for creating an advertising element for placement on a set of surfaces, which consists in creating an advertising element placed in public space and located on the surfaces of an object for advertising, which, when viewed from a certain angle, becomes visible in the form of a virtual image, corresponding to a real advertising element, while creating a model of an object for placing advertising in the form of a set of surfaces, creating a polygonal model of the advertising element and placing it in space so that its silhouette in a perspective projection from the foreshortening point fits completely on the specified set of surfaces, dissecting the model of the advertising element element by projections of the edges of the surfaces of the specified set towards the point of view with the formation of individual parts of the polygonal model of the advertising element, project control points of all specified parts of the model of the advertising element by means of rays from the point of view to the points of intersection of these rays with the corresponding surface of the specified set with the formation of projections of individual parts of the polygonal models of the advertising element on various surfaces of the specified set and fix the appearance of the specified parts on these surfaces for further production and placement of the advertising element on the objects of its placement, while when creating the specified model, its scale correspondence to real objects of public space is taken into account.

- 2 045930

In addition, when projecting a model of an advertising element onto the specified surfaces, all properties of the model, such as the topology of control points and texture development, are preserved.

Additionally, said surfaces of said set are planes, and the point of view is the point of installation of a television camera in a real public space.

In addition, said virtual image of the advertising element becomes visible vertically relative to the base on which the advertising object is installed.

The essence of the present invention will be more clear upon reading the following description of the preferred embodiments of the claimed method, taking into account the accompanying drawings, in which:

in fig. 1 shows a parallelepiped as a model of a set of two-dimensional surfaces according to one of the preferred embodiments of the present invention;

in fig. 2 shows a polygonal model of the letter A as an advertising element according to one of the preferred embodiments of the present invention;

in fig. 3 shows a model of a model of the letter A, the view of which is properly positioned relative to a parallelepiped according to one of the preferred embodiments of the present invention;

in fig. 4 shows projections of the lines of intersection of the sides of the parallelepiped through the advertising element, the letter A, according to one of the preferred embodiments of the present invention;

in fig. 5 shows the gradual stages of rebuilding the polygonal model of an advertising element until all its control points intersect with the parallelepiped model according to one of the preferred embodiments of the present invention;

in fig. 6 shows a view of the model of the parallelepiped together with the model of the letter A, including projections of its parts marked on the surface of the parallelepiped;

in fig. 7 shows a view of the letter A from an angle identical to its constructed model;

in fig. 8 shows individual sections of the projection of the model of the letter A, belonging to the corresponding planes of the parallelepiped according to one of the preferred embodiments of the present invention;

in fig. 9 shows spaced surfaces as a model of a set of two-dimensional surfaces according to a second preferred embodiment of the present invention;

in fig. 10 is a view from another perspective of a set of two-dimensional surfaces in accordance with a second preferred embodiment of the present invention;

in fig. 11 shows a view of the polygonal model of the advertising element, the letter A, from an angle position with its location in the center of the projection on a set of two-dimensional surfaces;

in fig. Figure 12 shows projections of intersection lines, plane faces, through the advertising element, the letter A;

in fig. 13 is a polygonal model of the letter A as an advertising element according to the second preferred embodiment of the present invention;

in fig. 14-16 show the gradual stages of rebuilding the polygonal model of an advertising element until all its control points intersect with the planes of a set of two-dimensional surfaces according to the second preferred embodiment of the present invention;

in fig. 17 is a view of the letter A from an angle identical to its constructed model according to the second preferred embodiment of the present invention;

in fig. 18 shows a model of the letter A, divided into separate areas belonging to the corresponding planes of a set of two-dimensional surfaces according to a second preferred embodiment of the present invention.

The present invention is actually a method for seamlessly placing a three-dimensional model of an object on a set of surfaces, in particular two-dimensional ones (fewer dimensions) while maintaining its three-dimensional volume for an observer located at a certain point. In this case, on each two-dimensional surface some part of the image will be applied, made in some known way: by printing, by projecting with light, by means of robotic manufacturing methods, either through a stencil, or manually, etc., but in general, parts of the image are perceived with the specified perspective as a three-dimensional object lying on and outside these surfaces. The method proposed in the present invention provides for the creation of a graphic element for placement on a set of surfaces, in particular, two-dimensional surfaces, such as planes, etc., installed on the ground or on some other base, usually in a horizontal direction, next to sports arena, for example, near a football field or basketball court, during the broadcast of a sporting event via television cameras. Such surfaces with a graphic image in accordance with the present invention can be used at other public events broadcast via television cameras, or in public places where the broadcast is not carried out, for the perception of the graphic image directly by the observer. A set of two-dimensional surfaces may contain points (including those inextricably connected in lines) of discontinuity between them, or be capable of being rebuilt into one continuous surface with minimal deviations.

- 3 045930

As an example, the so-called removable and irremovable points of discontinuity, combined into three-dimensional curves, include: a faceted surface with obtuse angles of the faces, which, with a selected error and the number of control points, can be rebuilt into a smooth NURBS surface, as a curve (line) from removable break points; and a set of surfaces that overlap each other, being at a distance from each other at all their points, as a curve of irreducible points. Once removable and irreparable breakpoints are determined, the geometric model of a set of two-dimensional surfaces corresponding to real surfaces is rebuilt to eliminate as many breakpoints as possible. Curves (lines) of irremovable breakpoints are combined into a group.

To illustrate the implementation of the present method, one of the preferred options (examples) in accordance with the present invention is presented below. According to this embodiment, a set of two-dimensional surfaces 1 is created in the form of a geometric model 2, using, for example, computer graphics programs, in particular those that serve to construct NURBS surfaces. In this example, the object in question has the shape of a parallelepiped, which has sides H, D and B (see Fig. 1).

The source carrier 3 of graphic information, which includes elements 4 of the graphic image of the advertisement, is, as a rule, a volumetric, for example, three-dimensional object projected onto a set of two-dimensional surfaces 1. As an element of the graphic image of the source carrier 3 of information, a polygonal model of the letter A is used here (see Fig. 1-3). The volumetric structure of the original graphic information carrier when using this method allows the original image to be positioned with great variability. The construction of the model of the carrier 3 is carried out taking into account the location of the angle 5 - a point in three-dimensional space, from where the original carrier 3 of graphic information, transferred to a set of two-dimensional surfaces 1, will have to look so that the elements 4 of the graphic image look three-dimensional, for example, vertically relative to the base of the sports arena , on which a set of 2 surfaces 1 is installed, and corresponded to the type of the original media. In this example, model 2 of a parallelepiped, an object for placing an advertisement, faces towards angle 5 with three sides, which form a set of two-dimensional surfaces 1.

A model of the source information carrier 3 can be created, for example, by any of the known methods of computer construction of objects that allow the implementation of the specified tasks, for example, using sets of NURBS surfaces or polygonal meshes. The model must be defined in such a way that the control points defining it belong to its corresponding surface (lie on it).

The model of the original carrier 3 of graphic information is oriented in space in the required way so that its silhouette in the central (perspective) projection with the center of the projection at the point of view 5 is completely placed on a set of two-dimensional surfaces.

The polygonal model of the letter A is placed so that its silhouette can fall entirely on the model of a set of 2 two-dimensional surfaces 1, and a texture can be applied to it - the color component of the polygonal model, which can be prepared in any editor known for this solution.

After the specified preparation of the model of the original carrier 3 of graphic information, in this example the letter A, the stage of its projection onto two-dimensional surfaces 1 is carried out.

The model of the original carrier 3 of the graphic information is dissected by the central projection of the lines (curves) of the break points (borders) of the two-dimensional surfaces 1 of the model 2 towards the perspective point 5 (see Fig. 4-6).

In fig. Figure 4 shows the projections of the curved lines of the break points (in this case, these are the lines of intersection of the sides of the parallelepiped). The letter A as a model of the original carrier 3 of graphic information is dissected at intersections, for example, with standard tools for editing Mesh objects, forming independent segments.

As a result of the operations carried out, the letter A as a model of the original carrier 3 of graphic information is reconstructed segment by segment (in parts) so that each control point (points that determine the type of elements 4 of the graphic image) moves in the direction of the ray with the beginning at the point of view 5 to their position at the point of intersection of the ray with the corresponding two-dimensional surface 1.

When transferring, all the properties of the segments (parts) of the model of the original media 3 of graphic information are preserved, such as the topology of control points, texture development, boundaries of sections of a set of two-dimensional surfaces 1, but the distances between control points are not preserved. Thus, in the letter A, unconnected areas 6 appear, taking into account the break points, and the projection of all elements 4 of graphic information on the surface 1 will occur with the correct distortion of the texture, while the resulting areas 6 of elements 4 of the graphic image of the letter A cease to be structurally connected.

In fig. 5 shows the gradual stages of reconstruction.

Due to the fact that the reconstruction is carried out while maintaining the topology of the segmented original model, it is possible to automatically transfer its texture (see Fig. 6).

In fig. 7 shows a view of the letter A from the perspective 5 of the projection of the graphic information carrier 3, which looks identical to its constructed model. Each surface 1 will have its own segment (section) 6 of the projection of the letter A, for example, as shown in Fig. 8.

As a result of these actions, projections of the elements 4 of the graphic image are formed on separate two-dimensional surfaces 1, on each of which these projections may contain an incompletely completed image, for example, not a complete letter, but only a part of it, the other part of which will be in the projection , located on another surface 1. Thus, the entire graphic image of the advertisement will be redistributed across individual surfaces 1 and is not structurally connected, but when observed from angle 5 (for example, from a given point of installation of a television camera), the advertisement will be seen as a complete, three-dimensional , located, for example, vertically relative to the base of the sports arena.

Subsequently, these projections are fixed on surfaces by any of the known methods, for example, by the application method, and are used for printing, for making a stencil, as a light projection, etc.

As another preferred embodiment of the present invention, another example of implementation of the claimed method is presented.

An object consisting of a set of two-dimensional surfaces will be considered, for which projections of the graphic information carrier 3 will be generated.

The object consists of several surfaces 7, which can be rebuilt in a plane with acceptable errors (see Figs. 9. and 10).

The planes are located at unknown angles relative to each other - their meaning is unknown, however, it is important to rebuild the geometric model as accurately as possible to the real object. Planes 7 do not intersect each other and are not connected.

Each line of the edge 8 of the perimeter of each plane represents a line of irremovable break points.

For the original image, as in the first example, a polygonal model of the letter A is used. The polygonal model is placed so that its silhouette can fall entirely on a set of two-dimensional surfaces 7, and a texture is applied to it.

In fig. Figure 11 shows a view of the model from angle 5 - a point in the model space. As in the first example, this is a general rule; the model of the original carrier 3 of graphic information is oriented in space in the required way so that its silhouette in the central (perspective) projection with the center of the projection at the point of view 5 is completely placed on a set of two-dimensional surfaces 7.

Then the original graphic information carrier 3 is dissected by the central projection of the curves (lines) of the break points to the foreshortening point 5, so that the resulting segments (parts) of the original graphic information carrier 3 are no longer structurally connected (see Fig. 12).

In fig. Figure 12 shows projections of curves (lines) of break points (in this case, these are faces 8 along the perimeter of surfaces 7).

The model of the source media 3 of graphic information is dissected at intersections, for example, with standard tools for editing Mesh objects. Thus, unconnected segments appear in the model, taking into account the break points, and the projection on surface 7 will occur with the correct texture distortion. The projections of each group of faces 8 respectively separate that segment of the model of the original graphic information carrier 3, which will be projected onto this particular plane. Each segment is scaled in space by an amount of n, where n>0.9 and n<1, to accurately fall exactly on the corresponding surface from a set of two-dimensional surfaces. Lines 9 indicate the boundaries of structural breaks in the original model of the original carrier 3 of graphic information.

Obtaining a projection of the carrier 3 of graphic information.

The segmented model of the original media 3 of graphic information, processed as indicated above, is rebuilt in such a way that each control point of the original model moves in the direction of the ray with its origin at the point of view 5 to the point of intersection of the corresponding ray with a set of two-dimensional surfaces 7. In this case, each segment of the model of the original media 3 graphic information is projected onto a corresponding plane that does not intersect with others.

Compliance can be determined by ray tracing criteria to the first obstacle or by the largest shadow silhouette area on plane 7 in the projection direction.

Due to the fact that the reconstruction was carried out while maintaining the topology of the original segmented model, it is possible to automatically transfer its texture.

In fig. 14-16 show projections of the original graphic information carrier 3 on the side of the viewing position 5.

At this stage, from the perspective position, the projection of the segmented original graphics medium 3 appears identical to the original graphics medium 3, as seen in FIG. 17.

-

Claims (4)

Each surface 7 has its own projection section 10. Subsequently, these projections are fixed on surfaces by any of the known methods, for example, by the application method, and are used for printing, for making a stencil, as a light projection, etc. These examples show the capabilities of this method to simulate the creation of an advertising or other graphic element for placement on a set of two-dimensional surfaces. This simulation may be performed taking into account real objects located in a public space, such as a sporting event, where an advertisement may be placed for viewing by a television camera installed at such competition. Scale correspondence between the dimensions of the object for advertising placement, the distance to the installation site of the television camera (angle point), etc. is easily performed using well-known modeling techniques. Thus, the present invention allows you to create an advertisement or other graphic image, which in parts, determined according to the method of this invention, can be placed on any object of various shapes (it can be a column, building structure, etc.) in a sports , or another arena, in public or private areas in such a way that to an observer sitting in front of the TV or located at the point of view, this advertisement would appear completely solid, three-dimensional and visually located, including not belonging to the actual placement surfaces. In addition, as a special case of using the present invention, using the claimed method it is possible to create an advertising element located on the plane of any advertising medium (special carpet) placed on the surface of the sports field. This description discloses preferred embodiments of the present method, but it should be understood that, without departing from the essence of the present invention, other modifications can be proposed that fall within the scope of the proposed claims. CLAIM 1. A method for obtaining an image on a set of surfaces for use as an advertising element, which from a certain point of view becomes visible in the form of a virtual image corresponding to a real image, characterized in that an initial three-dimensional image is created for projection and placement on a set of surfaces with its location in space in such a way that it fits entirely on the specified set of surfaces when projected from the foreshortening point, projections of individual parts of the specified initial image on the surfaces of the specified set are obtained by dissecting this image with a projection of the edges of the specified surfaces formed at the places of their intersection or formed by their edges, in the direction to a foreshortening point, such that the resulting parts of the original image are no longer structurally connected, and by projecting control points of said individual parts of the original image with the help of rays emanating from such foreshortening until they intersect with the corresponding specified surfaces, the resulting projections of the individual parts the original image on the specified surfaces are distorted relative to the corresponding parts of this image, but when viewed from a foreshortening point, they become visible in the form of a single virtual image corresponding to the original three-dimensional image and not belonging to the specified surfaces. 2. The method according to claim 1, characterized in that the resulting projections of the specified parts of the image are used for presentation as an advertising element, visible in the form of a virtual three-dimensional image from the location of the television camera during broadcast. 3. The method according to claim 1, characterized in that computer software is used to obtain said image projections. 4. The method according to claim 2, characterized in that said virtual image becomes visible vertically relative to the base on which the object for advertising is installed. -