US 2026/0289803 A1 · GROOVE DEPTH CALCULATION APPARATUS, GROOVE DEPTH CALCULATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM

Abstract

A groove depth calculation apparatus generates three-dimensional data representing the three-dimensional shape of a tire by using a plurality of captured images in which the tire is imaged. The groove depth calculation apparatus uses the three-dimensional data to calculate the virtual-space depth of longitudinal grooves of the tire and the virtual-space distance between the longitudinal grooves of the tire. The groove depth calculation apparatus identifies the real-world distance between the longitudinal grooves of the tire. The groove depth calculation apparatus calculates the real-world depth of the longitudinal grooves of the tire on the basis of the virtual-space distance between the longitudinal grooves of the tire, the real-world distance between the longitudinal grooves of the tire, and the virtual-space depth of the longitudinal grooves of the tire.

Claims18

Dependent claims

A groove depth calculation apparatus comprising:

at least one memory that is configured to store instructions;
and
at least one processor that is configured to execute the instructions to:
generate three-dimensional data representing a shape of a tire by using a plurality of captured images in which the same tire is captured;
calculate a virtual-space depth of a longitudinal groove of the tire and a virtual-space distance between longitudinal grooves of the tire by using the three-dimensional data;
determine a real-world distance between the longitudinal grooves of the tire;
and
calculate a real-world depth of the longitudinal groove of the tire based on a virtual-space distance between the longitudinal grooves of the tire, a real-world distance between the longitudinal grooves of the tire, and a virtual-space depth of the longitudinal groove of the tire.

5 more elements

A groove depth calculation method performed by one or more computers, comprising:

generating three-dimensional data representing a shape of a tire by using a plurality of captured images in which the same tire is captured;
calculating a virtual-space depth of a longitudinal groove of the tire and a virtual-space distance between longitudinal grooves of the tire by using the three-dimensional data;
determining a real-world distance between the longitudinal grooves of the tire;
and
calculating a real-world depth of the longitudinal groove of the tire based on a virtual-space distance between the longitudinal grooves of the tire, a real-world distance between the longitudinal grooves of the tire, and a virtual-space depth of the longitudinal groove of the tire.

2 more elements

A non-transitory computer-readable medium that is configured to store a program that causes one or more computers to execute:

generating three-dimensional data representing a shape of a tire by using a plurality of captured images in which the same tire is captured;
calculating a virtual-space depth of a longitudinal groove of the tire and a virtual-space distance between longitudinal grooves of the tire by using the three-dimensional data;
determining a real-world distance between the longitudinal grooves of the tire;
and
calculating a real-world depth of the longitudinal groove of the tire based on a virtual-space distance between the longitudinal grooves of the tire, a real-world distance between the longitudinal grooves of the tire, and a virtual-space depth of the longitudinal groove of the tire.

2 more elements

Dependencies are inferred from the claim text.

Groove depth calculation apparatus, groove depth calculation method, and non-transitory computer-readable medium

Life of this patent

Groove depth calculation apparatus, groove depth calculation method, and non-transitory computer-readable medium

Life of this patent

Abstract

Claims18