Invention Grant
- Patent Title: Relighting images and video using learned lighting and geometry
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Application No.: US17455167Application Date: 2021-11-16
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Publication No.: US11948245B2Publication Date: 2024-04-02
- Inventor: Shaona Ghosh , Mona Zehni
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blank Rome LLP
- Main IPC: G06T15/50
- IPC: G06T15/50 ; G06N3/08 ; G06T15/80

Abstract:
Novel machine learning (ML) models are introduced for image reconstruction training and inference workflows, which are able to estimate intrinsic components of single view images, including albedo, normal, and lighting components. According to some embodiments, such models may be trained on a mix of real and synthetic image datasets. For training on real datasets, both reconstruction and cross-relighting consistency terms may be imposed. The use of a cross-relighting consistency term allows for the use of multiple images of the same scene—although lit under different lighting conditions—to be used during training. At inference time, the model is able to operate on single or multiple images. According to other embodiments, adversarial training (e.g., in the form of a generative adversarial network (GAN)) may optionally be incorporated into the training workflow, e.g., in order to better refine the re-rendered images from the individual lighting and geometric components estimated by the model.
Public/Granted literature
- US20220157012A1 Relighting Images and Video Using Learned Lighting and Geometry Public/Granted day:2022-05-19
Information query
IPC分类:
G | 物理 |
G06 | 计算;推算或计数 |
G06T | 一般的图像数据处理或产生 |
G06T15/00 | 3D〔三维〕图像的加工 |
G06T15/50 | .发光效果 |