US 9,791,267 B2Granted

Determining three-dimensional information from projections or placement of two-dimensional patterns

OwnerRobert Bismuth, William D. Orner +2inventors

InventorsRobert Bismuth, William D. Orner, Jacob Rapoport, Amit Rohatgi

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Abstract

Embodiments of a shape measurement system and related methods are disclosed. In some embodiments, the system places a two-dimensional initial pattern, which can be implemented as a standalone molding or can be attached to a light source or printed on an outfit, onto a surface of a three-dimensional object. The system captures a transformed version of the initial pattern in two dimensions that is distorted due to the varying depth of the surface. The system then analyzes the transformed pattern and derives three-dimensional information regarding the target object. The analysis, which can incorporate a calibration process, can rely on the projection nature of the light source, the isomorphism/non-isomorphism of the initial pattern, and other factors.

Claims15

Dependent claims

A method of measuring a three-dimensional (3D) target object using two-dimensional (2D) patterns, comprising:

selecting an initial two-dimensional pattern;
laying the initial pattern on a 3D target object for viewing from a viewpoint to obtain a 2D transformed pattern;
computing first depth information regarding the target object based on the transformed pattern;
identifying a region of the target object that is hidden from the viewpoint or has a complexity above a predetermined threshold, based on the transformed pattern and first depth information;
computing second depth information different from the first depth information regarding the region of the target object;
and
deriving a 3D measurement of the target object by combining the first depth information and the second depth information and storing the derived 3D measurement in a computer memory.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/442,707Filed 12 May 2015 · us provisional application
Priority: 27 May 2014
Published: US 2016/0252346 A11 Sep 2016
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

G01B 11/254
By projecting a pattern, e.g. one or more lines, moiré fringes on the object: projection of a pattern, viewing through a pattern, e.g. moiré
A41H 1/02
Measuring aids or methods: devices for taking measurements on the human body
A41H 3/04
Patterns for cutting-out; Methods of drafting or marking-out such patterns, e.g. on the cloth: making patterns by modelling on the human body
A61B 5/1075
Measuring physical dimensions, e.g. size of the entire body or parts thereof: for measuring dimensions by non-invasive methods, e.g. for…