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Method and device for determining a three-dimensional distortion

A three-dimensional, three-dimensional shape technology, applied in the direction of using optical devices, measuring devices, testing of machine/structural components, etc., can solve problems such as unacceptable perception of automobiles, and achieve the effect of low time cost

Active Publication Date: 2016-04-27
ISRA GLASS VISION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Larger distortions in reflections can lead to an unacceptable perception of the car by the observer

Method used

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  • Method and device for determining a three-dimensional distortion
  • Method and device for determining a three-dimensional distortion

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Embodiment Construction

[0033] figure 1 Shown in is a reflective object in the form of a window pane 1 for a motor vehicle window with a reflective surface 2 which is observed by a camera (real camera) 3 . In particular, the camera 3 observes images of objects in the form of a grid, for example a regular grid (for example a square grid 5 ), which are produced by reflection at the surface 2 of the window pane 1 . Any other object can likewise be used for reflectance measurements. In the case of large panes 1 it is also possible to use several cameras to detect different regions of the surface of the pane 1 .

[0034] With the aid of reflectometry / reflectometers, the determination unit of the device according to the invention determines the three-dimensional shape of the surface 2 of the window pane 1 based on the image of the object recorded by the camera 3 . Using several cameras, the three-dimensional shape of the surface 2 of the pane 1 is assembled from the different measurements.

[0035] In o...

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PUM

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Abstract

A method for determining a distortion of the image of an object formed by a reflection on a reflecting object includes capturing a reflected image of the reflecting object, determining, using the captured reflected image, a three-dimensional (3-D) shape of the surface of the reflecting object, calculating, based on the determined 3-D shape, distortion of the captured reflected image of the reflecting object from different viewing directions and using the calculated distortion from the different viewing directions, determining a three-dimensional (3-D) distortion of the surface of the reflecting object.

Description

technical field [0001] The invention relates to a method for determining distortion / distortion of an object image formed by reflection at a reflective object and a device for the method. Background technique [0002] When an object is mirror-reflected in an object equipped with a reflective surface, distortions such as changes in shape, reduction in size, increase in size or change in curvature are formed, in particular due to irregularities on the surface of the object. These distortions cause the image of the subject to look different than what the subject actually sees. [0003] When viewing reflective objects, such as the window panes of motor vehicles or the reflective front of a mirror, it is often required to reproduce the environment on the reflective surface of this object as undistorted as possible. Distortion when rendering an object often leads to aesthetic problems with respect to the specularly reflected object itself. For example, in the case of automobiles,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0006G06T2207/30108G01B11/25G01M11/005G01M11/081G01N21/8806G01N21/958G01N2021/9586
Inventor R·库比亚克C·里柏达
Owner ISRA GLASS VISION