Repository logo

Efficient Text-Driven 3D Scene Editing Based on Gaussian Splatting

dc.contributor.authorZhang, Xuanqi
dc.contributor.supervisorFlocchini, Paola
dc.contributor.supervisorJoslin, Chris
dc.date.accessioned2025-07-08T15:00:50Z
dc.date.available2025-07-08T15:00:50Z
dc.date.issued2025-07-08
dc.description.abstractText-guided 3D scene editing has advanced with diffusion models and neural rendering. While Neural Radiance Fields (NeRF) excel at 3D reconstruction and novel view synthesis, they face key challenges: computational inefficiency, multi-view inconsistency, and poor handling of motion blur. To overcome these limitations, we introduce a 3D Gaussian Splatting (3DGS)-based framework for efficient and consistent 3D editing. 3DGS offers real-time rendering and a more practical alternative to NeRF. We enhance its performance with two key components: (1) a Complementary Information Mutual Learning Network (CIMLN) for refining 3DGS-derived depth maps, enabling depth-aware image editing; and (2) a Wavelet Consensus Attention mechanism that aligns latent codes across views during diffusion denoising, ensuring consistent multi-view outputs. We also address motion-blurred scene reconstruction by applying low-pass filtering and jointly optimizing Gaussian parameters with camera trajectories. Experiments show that our method achieves photorealistic, structurally consistent re- sults while maintaining real-time performance and significantly reducing computational overhead compared to prior methods.
dc.identifier.urihttp://hdl.handle.net/10393/50634
dc.identifier.urihttps://doi.org/10.20381/ruor-31226
dc.language.isoen
dc.publisherUniversité d'Ottawa | University of Ottawa
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject3D Gaussian Splatting
dc.subjectDiffusion
dc.subject3D Editing
dc.titleEfficient Text-Driven 3D Scene Editing Based on Gaussian Splatting
dc.typeThesisen
thesis.degree.disciplineGénie / Engineering
thesis.degree.levelMasters
thesis.degree.nameMCS
uottawa.departmentScience informatique et génie électrique / Electrical Engineering and Computer Science

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail ImageThumbnail Image
Name:
Zhang_Xuanqi_2025_thesis.pdf
Size:
16.33 MB
Format:
Adobe Portable Document Format

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail ImageThumbnail Image
Name:
license.txt
Size:
6.65 KB
Format:
Item-specific license agreed upon to submission
Description: