Cornell University
Library
Cornell UniversityLibrary

eCommons

Help
Log In(current)
  1. Home
  2. Cornell University Graduate School
  3. Cornell Theses and Dissertations
  4. 3D CONTENT CREATION FROM IMAGES

3D CONTENT CREATION FROM IMAGES

File(s)
Zhang_cornellgrad_0058_13414.pdf (78.57 MB)
Permanent Link(s)
https://doi.org/10.7298/gf97-mv88
https://hdl.handle.net/1813/112995
Collections
Cornell Theses and Dissertations
Author
Zhang, Kai
Abstract

We immerse ourselves in a wonderful world that is three-dimensional. However, dimensionality is reduced from 3D to 2D, when we visually capture the world with the ubiquitous cameras. The loss of this single dimensionality restricts the perspective from which a viewer could parse and explore the captured world. Hence, it is of particular interest to recover the lost dimensionality from 2D images in order to facilitate applications such as 3D cartography, virtual/augmented reality, and robotics navigation. The problem of reconstructing 3D scenes from 2D images has been traditionally approached by photogrammetry pipelines. Such pipelines typically consist of modularized components that are non-differentiable in nature. Modern advances have been mostly driven by building alternative differentiable neural rendering pipelines that exploit the power of machine learning. In this dissertation, we first present a method that seamlessly retargets photogrammetry pipelines developed for ground-level photos to satellite imageries. We then show a neural rendering approach that faithfully reconstructs large-scale object-centric scenes in 3D. The 3D contents created with these approaches, however, are fundamentally limited in that they bake in capture-time lighting and dis-allow 3D composition under new virtual illumination. We tackle this limitation by considering two capture lighting setups: one with natural environmental lighting, the other with collocated flashlight. Finally, we show an attempt at creating high-quality artistic 3D contents in addition to photorealistic ones.

Description
147 pages
Date Issued
2022-12
Keywords
3D content creation
•
3D reconstruction
•
Inverse rendering
•
Relighting
•
Satellite stereo
•
View synthesis
Committee Chair
Snavely, Keith
Committee Member
Lee, Clarence
Belongie, Serge
Degree Discipline
Electrical and Computer Engineering
Degree Name
Ph. D., Electrical and Computer Engineering
Degree Level
Doctor of Philosophy
Rights
Attribution 4.0 International
Rights URI
https://creativecommons.org/licenses/by/4.0/
Type
dissertation or thesis
Link(s) to Catalog Record
https://newcatalog.library.cornell.edu/catalog/15644042

Site Statistics | Help

About eCommons | Policies | Terms of use | Contact Us

copyright © 2002-2026 Cornell University Library | Privacy | Web Accessibility Assistance