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US 8,941,717 B2Granted
Semi-automatic 3D stereoscopic disparity cursor
AssigneeTektronix, Inc.
InventorsDaniel G. Baker, Lakshmanan Gopishankar
Life of this patent
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Abstract
Embodiments of the present invention provide a “disparity cursor” for easily measuring disparity within a selected region of a 3D image under test. In operation, a user places a window that defines the disparity cursor over a selected region of the 3D image under test using a mouse, keyboard, or other user-interface device. An average disparity value for the image segments contained within the window is then automatically calculated and reported to the user.
Claims18
A test and measurement instrument comprising:
- a user interface including a disparity cursor for selecting a region of a three-dimensional image under test;
- a processor for calculating a set of difference measurements associated with two or more shift values of a plurality of shift values for the selected region;
- the processor further including a minimizer for determining a minimum of the set of difference measurements;
- and
- the user interface further including a user display and having means for reporting a disparity value for the selected region to a user on the display, the disparity value related to the shift value associated with the determined minimum, in which the means for reporting the disparity value further includes means for changing the appearance of the disparity cursor on the display.
2 more elements
A method comprising the steps of:
- selecting a region of a three-dimensional image under test with a disparity cursor;
- producing a set of difference measurements associated with two or more shift values of a plurality of shift values for the selected region;
- determining a minimum of the set of difference measurements;
- reporting a disparity value for the selected region through a user interface to a user, the disparity value related to the shift value associated with the determined minimum;
- and
- changing the appearance of the disparity cursor in the user interface based on the determined minimum.
3 more elements
Dependencies are inferred from the claim text.