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Representing scenes at the granularity of objects is a prerequisite for scene understanding and decision making. We propose PriSMONet, a novel approach based on Prior Shape knowledge for learning Multi-Object 3D scene decomposition and…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Cathrin Elich , Martin R. Oswald , Marc Pollefeys , Joerg Stueckler

Can objects that are not visible in an image -- but are in the vicinity of the camera -- be detected? This study introduces the novel tasks of 2D, 2.5D and 3D unobserved object detection for predicting the location of nearby objects that…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Subhransu S. Bhattacharjee , Dylan Campbell , Rahul Shome

The concept of 3D scene graphs is increasingly recognized as a powerful semantic and hierarchical representation of the environment. Current approaches often address this at a coarse, object-level resolution. In contrast, our goal is to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Dennis Rotondi , Fabio Scaparro , Hermann Blum , Kai O. Arras

Modeling and rendering of dynamic scenes is challenging, as natural scenes often contain complex phenomena such as thin structures, evolving topology, translucency, scattering, occlusion, and biological motion. Mesh-based reconstruction and…

Graphics · Computer Science 2019-08-14 Stephen Lombardi , Tomas Simon , Jason Saragih , Gabriel Schwartz , Andreas Lehrmann , Yaser Sheikh

Accurately reconstructing complex full multi-object scenes from sparse observations remains a core challenge in computer vision and a key step toward scalable and reliable simulation for robotics. In this work, we introduce RecGen, a…

Learning descriptive 3D features is crucial for understanding 3D scenes with diverse objects and complex structures. However, it is usually unknown whether important geometric attributes and scene context obtain enough emphasis in an…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Junbo Zhang , Guofan Fan , Guanghan Wang , Zhengyuan Su , Kaisheng Ma , Li Yi

Recent progress in deep generative models has led to tremendous breakthroughs in image generation. However, while existing models can synthesize photorealistic images, they lack an understanding of our underlying 3D world. We present a new…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Jun-Yan Zhu , Zhoutong Zhang , Chengkai Zhang , Jiajun Wu , Antonio Torralba , Joshua B. Tenenbaum , William T. Freeman

Learning to represent and generate videos from unlabeled data is a very challenging problem. To generate realistic videos, it is important not only to ensure that the appearance of each frame is real, but also to ensure the plausibility of…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Katsunori Ohnishi , Shohei Yamamoto , Yoshitaka Ushiku , Tatsuya Harada

Tracking moving objects from a video sequence requires segmentation of these objects from the background image. However, getting the actual background image automatically without object detection and using only the video is difficult. In…

Computer Vision and Pattern Recognition · Computer Science 2015-10-06 Kardi Teknomo , Proceso Fernandez

Deoccluding the hidden portions of objects in a scene is a formidable task, particularly when addressing real-world scenes. In this paper, we present a new self-supervised PArallel visible-to-COmplete diffusion framework, named PACO, a…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Zhengzhe Liu , Qing Liu , Chirui Chang , Jianming Zhang , Daniil Pakhomov , Haitian Zheng , Zhe Lin , Daniel Cohen-Or , Chi-Wing Fu

The appearance of the same object may vary in different scene images due to perspectives and occlusions between objects. Humans can easily identify the same object, even if occlusions exist, by completing the occluded parts based on its…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Tonglin Chen , Bin Li , Zhimeng Shen , Xiangyang Xue

We present 3DHumanGAN, a 3D-aware generative adversarial network that synthesizes photorealistic images of full-body humans with consistent appearances under different view-angles and body-poses. To tackle the representational and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Zhuoqian Yang , Shikai Li , Wayne Wu , Bo Dai

Deep generative models allow for photorealistic image synthesis at high resolutions. But for many applications, this is not enough: content creation also needs to be controllable. While several recent works investigate how to disentangle…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Michael Niemeyer , Andreas Geiger

Recent advances in 3D semantic scene understanding have shown impressive progress in 3D instance segmentation, enabling object-level reasoning about 3D scenes; however, a finer-grained understanding is required to enable interactions with…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Alexey Bokhovkin , Vladislav Ishimtsev , Emil Bogomolov , Denis Zorin , Alexey Artemov , Evgeny Burnaev , Angela Dai

Learning from image-text data has demonstrated recent success for many recognition tasks, yet is currently limited to visual features or individual visual concepts such as objects. In this paper, we propose one of the first methods that…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Yiwu Zhong , Jing Shi , Jianwei Yang , Chenliang Xu , Yin Li

The advancement of generative radiance fields has pushed the boundary of 3D-aware image synthesis. Motivated by the observation that a 3D object should look realistic from multiple viewpoints, these methods introduce a multi-view constraint…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Xingang Pan , Xudong Xu , Chen Change Loy , Christian Theobalt , Bo Dai

We tackle the problem of object discovery, where objects are segmented for a given input image, and the system is trained without using any direct supervision whatsoever. A novel copy-pasting GAN framework is proposed, where the generator…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Relja Arandjelović , Andrew Zisserman

Training a 3D scene understanding model requires complicated human annotations, which are laborious to collect and result in a model only encoding close-set object semantics. In contrast, vision-language pre-training models (e.g., CLIP)…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Junbo Zhang , Runpei Dong , Kaisheng Ma

In the field of computer vision, unsupervised learning for 2D object generation has advanced rapidly in the past few years. However, 3D object generation has not garnered the same attention or success as its predecessor. To facilitate novel…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Devendra K. Jangid , Neal R. Brodnik , Amil Khan , McLean P. Echlin , Tresa M. Pollock , Sam Daly , B. S. Manjunath

Despite recent advancements in single-domain or single-object image generation, it is still challenging to generate complex scenes containing diverse, multiple objects and their interactions. Scene graphs, composed of nodes as objects and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Sarthak Garg , Helisa Dhamo , Azade Farshad , Sabrina Musatian , Nassir Navab , Federico Tombari