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Stable Diffusion fine-tuning technique is tried to assist bridge-type innovation. The bridge real photo dataset is built, and Stable Diffusion is fine tuned by using four methods that are Textual Inversion, Dreambooth, Hypernetwork and…

机器学习 · 计算机科学 2024-09-25 Leye Zhang , Xiangxiang Tian , Chengli Zhang , Hongjun Zhang

With the rising industrial attention to 3D virtual modeling technology, generating novel 3D content based on specified conditions (e.g. text) has become a hot issue. In this paper, we propose a new generative 3D modeling framework called…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Muheng Li , Yueqi Duan , Jie Zhou , Jiwen Lu

Computed tomography (CT) is a cornerstone imaging modality for non-invasive, high-resolution visualization of internal anatomical structures. However, when the scanned object exceeds the scanner's field of view (FOV), projection data are…

图像与视频处理 · 电气工程与系统科学 2026-04-09 Zhenhao Li , Song Ni , Long Yang , Xiaojie Yin , Haijun Yu , Jiazhou Wang , Hongbin Han , Weigang Hu , Yixing Huang

Diffusion bridge models establish probabilistic paths between arbitrary paired distributions and exhibit great potential for universal image restoration. Most existing methods merely treat them as simple variants of stochastic interpolants,…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Hebaixu Wang , Jing Zhang , Haoyang Chen , Haonan Guo , Di Wang , Jiayi Ma , Bo Du

The dynamic Schr\"odinger bridge problem provides an appealing setting for solving constrained time-series data generation tasks posed as optimal transport problems. It consists of learning non-linear diffusion processes using efficient…

机器学习 · 计算机科学 2023-11-27 Ella Tamir , Martin Trapp , Arno Solin

Score-based generative models exhibit state of the art performance on density estimation and generative modeling tasks. These models typically assume that the data geometry is flat, yet recent extensions have been developed to synthesize…

We introduce a new generative model that combines latent diffusion with persistent homology to create 3D shapes with high diversity, with a special emphasis on their topological characteristics. Our method involves representing 3D shapes as…

计算机视觉与模式识别 · 计算机科学 2024-02-01 Jiangbei Hu , Ben Fei , Baixin Xu , Fei Hou , Weidong Yang , Shengfa Wang , Na Lei , Chen Qian , Ying He

Achieving consistent and high-fidelity geometry and appearance reconstruction of 3D digital humans from a single RGB image is inherently a challenging task. Existing studies typically resort to decoupled pipelines for geometry estimation…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Yingzhi Tang , Qijian Zhang , Junhui Hou

We study generative modeling for time series using entropic optimal transport and the Schr\"odinger bridge (SB) framework, with a focus on applications in finance and energy modeling. Extending the diffusion-based approach of Hamdouche,…

数理金融 · 定量金融 2026-02-24 Stefano De Marco , Huyên Pham , Davide Zanni

We propose a diffusion-based framework for zero-shot image editing that unifies text-guided and reference-guided approaches without requiring fine-tuning. Our method leverages diffusion inversion and timestep-specific null-text embeddings…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Dasol Jeong , Donggoo Kang , Jiwon Park , Hyebean Lee , Joonki Paik

Modality translation is inherently under-constrained, as multiple cross-modal mappings may yield the same marginals. Recent work has shown that diffusion bridges are effective for this task. However, most existing approaches rely on fully…

机器学习 · 计算机科学 2026-05-13 Eitan Kosman , Gabriele Serussi , Chaim Baskin

At the core of modern generative modeling frameworks, including diffusion models, score-based models, and flow matching, is the task of transforming a simple prior distribution into a complex target distribution through stochastic paths in…

机器学习 · 计算机科学 2026-03-20 Sophia Tang

Point cloud completion aims to recover the complete 3D shape of an object from partial observations. While approaches relying on synthetic shape priors achieved promising results in this domain, their applicability and generalizability to…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Başak Melis Öcal , Maxim Tatarchenko , Sezer Karaoglu , Theo Gevers

Metasurface inverse design is challenged by the intricate relationship between structural parameters and electromagnetic responses, as well as the high dimensionality of the optimization space. Local models, while commonly employed, quickly…

Deep Ensemble (DE) approach is a straightforward technique used to enhance the performance of deep neural networks by training them from different initial points, converging towards various local optima. However, a limitation of this…

机器学习 · 计算机科学 2024-04-25 Hyunsu Kim , Jongmin Yoon , Juho Lee

Diffusion-based planners have shown strong potential for autonomous driving by capturing multi-modal driving behaviors. A key challenge is how to effectively guide these models for safe and reactive planning in closed-loop settings, where…

人工智能 · 计算机科学 2026-03-06 Shu Liu , Wenlin Chen , Weihao Li , Zheng Wang , Lijin Yang , Jianing Huang , Yipin Zhang , Zhongzhan Huang , Ze Cheng , Hao Yang

Topology optimization enables the automated design of efficient structures by optimally distributing material within a defined domain. However, traditional gradient-based methods often scale poorly with increasing resolution and…

计算工程、金融与科学 · 计算机科学 2025-08-08 Aaron Lutheran , Srijan Das , Alireza Tabarraei

Point clouds are crucial for capturing three-dimensional data but often suffer from incompleteness due to limitations such as resolution and occlusion. Traditional methods typically rely on point-based approaches within discriminative…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Guoqing Zhang , Jian Liu

Probabilistic denoising diffusion models (DDMs) have set a new standard for 2D image generation. Extending DDMs for 3D content creation is an active field of research. Here, we propose TetraDiffusion, a diffusion model that operates on a…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Nikolai Kalischek , Torben Peters , Jan D. Wegner , Konrad Schindler

We provide a general framework for learning diffusion bridges that transport prior to target distributions. It includes existing diffusion models for generative modeling, but also underdamped versions with degenerate diffusion matrices,…

机器学习 · 计算机科学 2025-08-14 Denis Blessing , Julius Berner , Lorenz Richter , Gerhard Neumann