Computer graphics processing and selective visual display system – Image superposition by optical means
Reexamination Certificate
2011-08-16
2011-08-16
Wang, Quan-Zhen (Department: 2629)
Computer graphics processing and selective visual display system
Image superposition by optical means
C345S008000, C345S009000, C349S011000, C359S630000
Reexamination Certificate
active
07999760
ABSTRACT:
A method is provided for a distortion-free display of image elements, which are composed of computer-generated pixels and are reflected on a non-planar reflective surface, in particular a windshield of a motor vehicle. According to this method, pre-distorted image data are calculated by a computer unit in an operating phase as a function of the distortion properties of the reflective surface from the original image data of the image elements in accordance with the display-related pre-distortion parameters and are transferred to a display unit, which projects the image elements onto the reflective surface. In order to obtain the display-related pre-distortion parameters, at least one image element is provided, pre-distorted and projected in the form of original image data in a calibration phase in a procedure that is analogous to the operating phase; and the image data resulting from the projection are recorded using a camera and image processing, and compared with the original image data. During the calibration phase, at least two image data sets resulting from the projection are recorded from different camera positions and/or camera viewing angles.
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International Search Report dated Nov. 17, 2005 with English translation of relevant portion (Four (4) pages).
Giegold Juergen
Loh Sebastian
Mangold Thomas
Pinsker Martin
Bayerische Motoren Werke Aktiengesellschaft
Crowell & Moring LLP
Nguyen Jennifer
Wang Quan-Zhen
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