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Method and devices for projecting two-dimensional patterns onto complex surfaces of three-dimensional objects

A technology of three-dimensional objects and two-dimensional patterns, which is applied in the processing of 3D images, decorative arts, graphics and image conversion, etc., to achieve the effect of optimizing transfer and reducing deformation

Inactive Publication Date: 2009-09-02
AIRBUS OPERATIONS (SAS)
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Problems solved by technology

The process has many drawbacks, especially in terms of cost and time frame

Method used

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  • Method and devices for projecting two-dimensional patterns onto complex surfaces of three-dimensional objects
  • Method and devices for projecting two-dimensional patterns onto complex surfaces of three-dimensional objects
  • Method and devices for projecting two-dimensional patterns onto complex surfaces of three-dimensional objects

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Embodiment Construction

[0039] The following description is based on the example of aircraft exterior decoration, but it should be understood that the method and device according to the invention are applicable to the decoration of all three-dimensional objects by means of a two-dimensional representation of the decoration.

[0040] figure 2 An example of an apparatus 200 for implementing the invention is shown. The device 200 is, for example, a microcomputer or a workstation that can be connected or not connected to a communication network. The device 200 has a communication bus 210 which is preferably connected to:

[0041] - a central processing unit 215, such as a microprocessor, denoted CPU;

[0042] - a read-only memory 220, denoted ROM, which may contain programs capable of implementing the present invention;

[0043] - a random access memory 225, denoted RAM, which, when powered, contains the executable code of the method of the invention and registers adapted to record the variables and ...

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Abstract

The method and the devices according to the invention are aimed at optimizing the projection of a two-dimensional pattern onto the surface of a three-dimensional object. After having defined an original curve on the two-dimensional pattern and a projection curve (600, 800) on the surface of the three-dimensional object, a point of the pattern is selected (610, 810). The abscissa of the projection of the selected point is determined according to the abscissa of the selected point and according to a first projection ratio (615, 815). Likewise, the ordinate of the projection of the selected point is determined according to the ordinate of the selected point and according to a second projection ratio (620, 820). A projection plane is then determined. This projection plane comprises the point of the projection curve that is determined by the abscissa of the projection of the selected point. The projection of the selected point onto the surface of the three-dimensional object is determined according to the ordinate of the projection of the selected point, the intersection of the surface of the three-dimensional object with the plane of projection and the projection curve (625, 825).

Description

technical field [0001] The invention relates to the decoration of three-dimensional objects, in particular to an auxiliary modeling method and device for the decoration of three-dimensional objects based on a two-dimensional image of these decorations. Background technique [0002] In many industrial fields, the projection of a two-dimensional image onto three-dimensional objects is commonly used to decorate these objects. The complexity of the problem varies with the nature of the three-dimensional object and the nature of the projection surface. Thus, projecting a two-dimensional image on a continuous surface of small size, such as the outer surface of a bottle, presents no particular problems, whereas projecting logos, symbols or names on the outer surface of an aircraft presents many problems. In particular, due to the complexity of the shape of the projection surface, the scale factor between the reproduced image and the original image, and the presence of certain spec...

Claims

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Application Information

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IPC IPC(8): B44D2/00G06T15/04
CPCB44D2/00G06T3/005G06T15/04G06T3/08
Inventor F·萨莱勒H·让南
Owner AIRBUS OPERATIONS (SAS)
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