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Diffusion/score-based models have recently emerged as powerful generative priors for solving inverse problems, including accelerated MRI reconstruction. While their flexibility allows decoupling the measurement model from the learned prior,…

图像与视频处理 · 电气工程与系统科学 2025-09-15 Yaşar Utku Alçalar , Junno Yun , Mehmet Akçakaya

Denoising diffusion models are a powerful type of generative models used to capture complex distributions of real-world signals. However, their applicability is limited to scenarios where training samples are readily available, which is not…

计算机视觉与模式识别 · 计算机科学 2023-11-20 Ayush Tewari , Tianwei Yin , George Cazenavette , Semon Rezchikov , Joshua B. Tenenbaum , Frédo Durand , William T. Freeman , Vincent Sitzmann

Autonomous vehicles (AVs) are expected to revolutionize transportation by improving efficiency and safety. Their success relies on 3D vision systems that effectively sense the environment and detect traffic agents. Among sensors AVs use to…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Amirhesam Aghanouri , Cristina Olaverri-Monreal

Point clouds captured by scanning devices are often incomplete due to occlusion. To overcome this limitation, point cloud completion methods have been developed to predict the complete shape of an object based on its partial input. These…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Lintai Wu , Qijian Zhang , Junhui Hou , Yong Xu

Learning from demonstrations faces challenges in generalizing beyond the training data and often lacks collision awareness. This paper introduces Lan-o3dp, a language-guided object-centric diffusion policy framework that can adapt to unseen…

机器人学 · 计算机科学 2025-03-18 Hang Li , Qian Feng , Zhi Zheng , Jianxiang Feng , Zhaopeng Chen , Alois Knoll

The goal of object-centric representation learning is to decompose visual scenes into a structured representation that isolates the entities. Recent successes have shown that object-centric representation learning can be scaled to…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Aniket Didolkar , Andrii Zadaianchuk , Anirudh Goyal , Mike Mozer , Yoshua Bengio , Georg Martius , Maximilian Seitzer

We propose a novel fast and accurate simulation framework for contact-intensive tight-tolerance robotic assembly tasks. The key components of our framework are as follows: 1) data-driven contact point clustering with a certain…

机器人学 · 计算机科学 2022-03-01 Jaemin Yoon , Minji Lee , Dongwon Son , Dongjun Lee

Robots operating in human environments must be able to rearrange objects into semantically-meaningful configurations, even if these objects are previously unseen. In this work, we focus on the problem of building physically-valid structures…

机器人学 · 计算机科学 2023-04-26 Weiyu Liu , Yilun Du , Tucker Hermans , Sonia Chernova , Chris Paxton

Model fusion seeks to combine independently trained neural networks into a single model without retraining, but is complicated by representational divergence arising from permutation invariance, random initialization, and heterogeneous…

Zero-shot object pose estimation enables the retrieval of object poses from images without necessitating object-specific training. In recent approaches this is facilitated by vision foundation models (VFM), which are pre-trained models that…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Bernd Von Gimborn , Philipp Ausserlechner , Markus Vincze , Stefan Thalhammer

It is desirable to enable robots capable of automatic assembly. Structural understanding of object parts plays a crucial role in this task yet remains relatively unexplored. In this paper, we focus on the setting of furniture assembly from…

机器人学 · 计算机科学 2022-07-07 Rufeng Zhang , Tao Kong , Weihao Wang , Xuan Han , Mingyu You

Manipulating articulated objects with robotic arms is challenging due to the complex kinematic structure, which requires precise part segmentation for efficient manipulation. In this work, we introduce a novel superpoint-based perception…

计算机视觉与模式识别 · 计算机科学 2024-12-24 Qiaojun Yu , Ce Hao , Xibin Yuan , Li Zhang , Liu Liu , Yukang Huo , Rohit Agarwal , Cewu Lu

Pretrained diffusion models have demonstrated strong capabilities in zero-shot inverse problem solving by incorporating observation information into the generation process of the diffusion models. However, this presents an inherent dilemma:…

机器学习 · 计算机科学 2026-05-05 Xun Su , Hiroyuki Kasai

Location and appearance are the key cues for video object segmentation. Many sources such as RGB, depth, optical flow and static saliency can provide useful information about the objects. However, existing approaches only utilize the RGB or…

计算机视觉与模式识别 · 计算机科学 2021-08-12 Xiaoqi Zhao , Youwei Pang , Jiaxing Yang , Lihe Zhang , Huchuan Lu

In autonomous driving scenarios, the collected LiDAR point clouds can be challenged by occlusion and long-range sparsity, limiting the perception of autonomous driving systems. Scene completion methods can infer the missing parts of…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Andrea Matteazzi , Dietmar Tutsch

Diffusion models have proven to be highly effective in image and video generation; however, they encounter challenges in the correct composition of objects when generating images of varying sizes due to single-scale training data. Adapting…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Lanqing Guo , Yingqing He , Haoxin Chen , Menghan Xia , Xiaodong Cun , Yufei Wang , Siyu Huang , Yong Zhang , Xintao Wang , Qifeng Chen , Ying Shan , Bihan Wen

Diffusion models have become a popular approach for image generation and reconstruction due to their numerous advantages. However, most diffusion-based inverse problem-solving methods only deal with 2D images, and even recently published 3D…

图像与视频处理 · 电气工程与系统科学 2023-09-04 Suhyeon Lee , Hyungjin Chung , Minyoung Park , Jonghyuk Park , Wi-Sun Ryu , Jong Chul Ye

Large-scale pre-trained vision-language models allow for the zero-shot text-based generation of 3D avatars. The previous state-of-the-art method utilized CLIP to supervise neural implicit models that reconstructed a human body mesh.…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Shuo Huang , Zongxin Yang , Liangting Li , Yi Yang , Jia Jia

Synthetic dataset generation in Computer Vision, particularly for industrial applications, is still underexplored. Industrial defect segmentation, for instance, requires highly accurate labels, yet acquiring such data is costly and…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Emanuele Caruso , Alessandro Simoni , Francesco Pelosin

Faithfully reconstructing textured meshes is crucial for many applications. Compared to text or image modalities, leveraging 3D colored point clouds as input (colored-PC-to-mesh) offers inherent advantages in comprehensively and precisely…

计算机视觉与模式识别 · 计算机科学 2025-08-13 Qiao Yu , Xianzhi Li , Yuan Tang , Xu Han , Jinfeng Xu , Long Hu , Min Chen