CALIBRATION MARK APPARATUS

Abstract: a calibration mark apparatus includes a support having at least one wall with at least one calibration pattern on the least one wall and at least one attachment portion extending from the least one wall. the attachment portion may be a flap extending from at least one wall for attaching the support to a surface or a net. the support may be a three-dimensional (3d) structure. the calibration mark apparatus may have walls that are foldable along a common edge into a single plane. the calibration mark apparatus may have a base connecting the walls including raised tab portions arranged to fit into slots in the flap. the flap may include openings for attaching multiple supports together by a rope that is arranged to feed through the openings. the calibration mark apparatus may include a bracket to mount the support to a surface or a net by clips.

Inventor(s): Evgeny Lipunov, Samuel Whitcomb, Janice Hui Lin Tan, Batuhan Okur

CPC Classification: G01B21/042 (MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS)

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