Samsung patents 3D scene modeling using neural networks and light patterns
This patent describes a method for creating accurate 3D models of objects by analyzing how light reflects off their surfaces. It involves training a neural network to determine the best lighting patterns to use when reconstructing an object's shape from images.
In the filing’s own words
A method of determining an illumination pattern includes constructing a dataset by estimating a first surface normal vector of a three-dimensional (3D) object from a first image obtained by capturing the 3D object of which surface normal information is known, the dataset including basis images of the 3D object; generating simulation images in which virtual illumination patterns, obtained based on a combination of the basis images, are applied to the 3D object; estimating a second surface normal vector of the 3D object, by reconstructing a surface normal using a photometric stereo technique based on the virtual illumination patterns and simulation images corresponding to the virtual illumination patterns; and training a neural network to determine an illumination pattern based on a difference between the first surface normal vector and the second surface normal vector.
What exactly they claim (claim 1)
1. A method of determining an illumination pattern, the method comprising: constructing a dataset by estimating a first surface normal vector of a three-dimensional (3D) object from a first image obtained by capturing the 3D object of which surface normal information is known, the dataset comprising basis images of the 3D object; generating simulation images in which virtual illumination patterns, obtained based on a combination of the basis images, are applied to the 3D object; estimating a second surface normal vector of the 3D object, by reconstructing a surface normal using a photometric stereo technique based on the virtual illumination patterns and simulation images corresponding to the virtual illumination patterns; and training a neural network to determine an illumination pattern based on a difference between the first surface normal vector and the second surface normal vector.
Facts
- Company
- Samsung (SAMSUNG ELECTRONICS CO., LTD.)
- Official title
- Method of determining illumination pattern for three-dimensional scene and method and apparatus for modeling three-dimensional scene
- Patent number
- US12762792B2
- Application number
- 18669048
- Filed
- May 20, 2024
- Granted
- Oct 13, 2026
- Inventors
- 7
- Claims
- 20
Classified under
G06T 17/00 Physics & computingG06V 10/24 Physics & computingG06V 10/60 Physics & computingMore from Samsung in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.