Invention Grant
- Patent Title: Error correction schemes for volumetric 3D displays
- Patent Title (中): 体积3D显示的纠错方案
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Application No.: US11156792Application Date: 2005-06-20
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Publication No.: US07692605B2Publication Date: 2010-04-06
- Inventor: Che-Chih Tsao
- Applicant: Che-Chih Tsao
- Main IPC: G09G5/00
- IPC: G09G5/00

Abstract:
This invention describes methods and systems for correcting frame position error on one category of volumetric 3D displays that generates volumetric 3D images by using a rotary mechanism to move a screen to sweep a volume and projecting 2D profile images on the screen. The screen motion is in general rotating or reciprocating and a mechanism of rotational nature is generally applied to drive the motion. The method has three major steps. The first step provides a measure of the frame position error with respect to the theoretical position. The error is a periodical function of the angular position of the moving screen, due to the nature of the mechanisms. The second step constructs a correction function that shifts the position of frame image of each frame with respect to the frame center to compensate the error. The error measurement and the construction of the correction function can be performed statically or dynamically. The third step shifts the image frames to be displayed according to the correction function and projects them in the volumetric 3D display. This invention also includes preferred driving mechanisms that match the periodical nature of the error function.
Public/Granted literature
- US20050280605A1 Error correction schemes for volumetric 3D displays Public/Granted day:2005-12-22
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