Displacement detecting apparatus and displacement detecting method
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorTaro Imagawa
Life of this patent
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Abstract
A displacement detecting apparatus includes: a detector which detects displacement, which is spatial displacement over time, of each of a plurality of measurement points which have been set on an object, using a plurality of images of the object captured at a plurality of time points; an extractor which extracts characteristic displacement specific to the object, based on the displacement detected by the detector; and a calculator which calculates overall displacement indicating displacement of the entirety of the object, from the characteristic displacement extracted by the extractor.
Claims10
A displacement detecting apparatus, comprising:
- a detector which detects displacement of each of one or more reference measurement points and each of a plurality of measurement points, using a plurality of images of the object captured at a plurality of time points, the plurality of measurement points having been set on an object, the displacement being spatial displacement over time;
- a corrector which detects a dominant motion in an entirety of each of the plurality of images, based on the displacement detected by the detector, and corrects the displacement of each of the plurality of measurement points detected by the detector, based on the displacement of each of the one or more reference measurement points that follows the dominant motion,
- an extractor which extracts characteristic displacement specific to the object, based on the displacement corrected by the corrector;
- and
- a calculator which calculates overall displacement indicating displacement of an entirety of the object, from the characteristic displacement extracted by the extractor.
A displacement detecting method performed by a displacement detecting apparatus including a detector, an extractor, and a calculator, the displacement detecting method comprising:
- detecting displacement of each of one or more reference measurement points and each of a plurality of measurement points, using a plurality of images of the object captured at a plurality of time points, the plurality of measurement points having been set on an object, the displacement being spatial displacement over time, the detecting being performed by the detector;
- detecting a dominant motion in an entirety of each of the plurality of images, based on the displacement detected in the detecting of the displacement, and correcting the displacement of each of the plurality of measurement points detected in the detecting of the displacement, based on the displacement of each of the one or more reference measurement points that follows the dominant motion, the detecting of the dominant motion and correcting being performed by the corrector;
- extracting characteristic displacement specific to the object, based on the displacement corrected in the correcting, the extracting being performed by the extractor;
- and
- calculating overall displacement indicating displacement of an entirety of the object, from the characteristic displacement extracted in the extracting, the calculating being performed by the calculator.
Dependencies are inferred from the claim text.