Television – Image signal processing circuitry specific to television – Motion vector generation
Reexamination Certificate
2011-03-15
2011-03-15
Perungavoor, Sath V (Department: 2624)
Television
Image signal processing circuitry specific to television
Motion vector generation
C382S128000, C382S236000
Reexamination Certificate
active
07907217
ABSTRACT:
A system and method for calculating a pixel-shift vector that predicts the motion in dynamic image data and can be used to shift reference image data in order to generate a subtracted image with reduced motion artifacts. The pixel-shift vector is calculated based on displacement vectors that have been calculated based on past motion in the dynamic image data. One embodiment determines a virtual pixel-shift vector as a function of stored pixel-shift vectors that were previously determined as a function of a previously captured live frame. The virtual pixel-shift vector is a prediction of the location of the current live frame before the current live frame is captured. The mask frame is adjusted as a function of this virtual pixel-shift vector. The current live frame is then subtracted from the mask frame adjusted as a function of the virtual pixel-shift vector. The adjusted mask frame and the live frame will then overlap and the subtracted image will have reduced artifacts.
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Baumgart John
Vogt Florian
Burke Alexander J
Perungavoor Sath V
Siemens Medical Solutions USA , Inc.
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