US 11,688,085 B2Granted

Method of characterizing a surface texture and texture characterization tool

AssigneeCertainTeed Gypsum, Inc.

InventorsRachel Z. Pytel, Sidath S. Wijesooriya, Simon Mazoyer, Brice Dubost

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Abstract

The present disclosure relates generally to evaluating the surfaces of a building. The present disclosure relates more particularly to a method of characterizing a surface texture of a building surface. The method includes illuminating a first area of the building surface from a single direction and capturing an image of the first area using a camera while the first area is illuminated. The first image includes a first group of digital pixel values. The method further includes calculating a first set of values that characterize a first surface texture of the first area based on a first group of digital pixel values of the image, and comparing the first set of values to a second set of values that characterize a second surface texture, so as to produce a comparator value.

Claims20

Dependent claims

A method of characterizing a surface texture of a building surface, the method comprising:

activating, by a computing device, a light source of a texture characterization tool while the texture characterization tool is disposed over a first area of the building surface so as to illuminate the first area from a single direction;
receiving, via the computing device, a first image of the first area captured by a camera of the texture characterization tool while the first area is illuminated by the light source, the first image including a first group of digital pixel values;
calculating, using the computing device, a first set of values that characterize a first surface texture of the first area based on the first group of digital pixel values;
comparing, using the computing device, the first set of values to a second set of values that characterize a second surface texture, so as to produce a comparator value.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/817,962Filed 13 Mar 2020 · us provisional application
Priority: 15 Mar 2019
Published: US 2020/0294255 A117 Sep 2020
Granted: 27 Jun 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06T 7/41
Analysis of texture: based on statistical description of texture
G06T 7/001
Industrial image inspection: using an image reference approach
G06T 7/40
Image analysis: analysis of texture
G06V 10/141
Optical characteristics of the device performing the acquisition or on the illumination arrangements: control of illumination