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Zeroth-order optimization is the process of minimizing an objective $f(x)$, given oracle access to evaluations at adaptively chosen inputs $x$. In this paper, we present two simple yet powerful GradientLess Descent (GLD) algorithms that do…

Machine Learning · Computer Science 2020-05-20 Daniel Golovin , John Karro , Greg Kochanski , Chansoo Lee , Xingyou Song , Qiuyi Zhang

We present Orientation-anchored Gaussian Splatting (OriGS), a novel framework for high-quality 4D reconstruction from casually captured monocular videos. While recent advances extend 3D Gaussian Splatting to dynamic scenes via various…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Junyi Wu , Jiachen Tao , Haoxuan Wang , Gaowen Liu , Ramana Rao Kompella , Yan Yan

Recent breakthroughs in text-to-image diffusion models have significantly advanced the generation of high-fidelity, photo-realistic images from textual descriptions. Yet, these models often struggle with interpreting spatial arrangements…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Jiaqi Liu , Tao Huang , Chang Xu

Deep generative models have shown impressive results in text-to-image synthesis. However, current text-to-image models often generate images that are inadequately aligned with text prompts. We propose a fine-tuning method for aligning such…

A crucial ability of human intelligence is to build up models of individual 3D objects from partial scene observations. Recent works achieve object-centric generation but without the ability to infer the representation, or achieve 3D scene…

Machine Learning · Computer Science 2021-07-05 Chang Chen , Fei Deng , Sungjin Ahn

Text-guided diffusion models have shown superior performance in image/video generation and editing. While few explorations have been performed in 3D scenarios. In this paper, we discuss three fundamental and interesting problems on this…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Gang Li , Heliang Zheng , Chaoyue Wang , Chang Li , Changwen Zheng , Dacheng Tao

Existing 3D-from-2D generators are typically designed for well-curated single-category datasets, where all the objects have (approximately) the same scale, 3D location, and orientation, and the camera always points to the center of the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Ivan Skorokhodov , Aliaksandr Siarohin , Yinghao Xu , Jian Ren , Hsin-Ying Lee , Peter Wonka , Sergey Tulyakov

Reconstructing structured 3D scenes from RGB images using CAD objects unlocks efficient and compact scene representations that maintain compositionality and interactability. Existing works propose training-heavy methods relying on either…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Qirui Wu , Denys Iliash , Daniel Ritchie , Manolis Savva , Angel X. Chang

Diffusion models have emerged as powerful tools for a wide range of vision tasks, including text-guided image generation and editing. In this work, we explore their potential for object grounding in remote sensing imagery. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Geet Sethi , Panav Shah , Ashutosh Gandhe , Soumitra Darshan Nayak

3D scene understanding for robotic applications exhibits a unique set of requirements including real-time inference, object-centric latent representation learning, accurate 6D pose estimation and 3D reconstruction of objects. Current…

Robotics · Computer Science 2024-02-27 Yizhe Wu , Haitz Sáez de Ocáriz Borde , Jack Collins , Oiwi Parker Jones , Ingmar Posner

We propose a real-time RGB-based pipeline for object detection and 6D pose estimation. Our novel 3D orientation estimation is based on a variant of the Denoising Autoencoder that is trained on simulated views of a 3D model using Domain…

Computer Vision and Pattern Recognition · Computer Science 2019-07-18 Martin Sundermeyer , Zoltan-Csaba Marton , Maximilian Durner , Manuel Brucker , Rudolph Triebel

We train a feed-forward text-to-3D diffusion generator for human characters using only single-view 2D data for supervision. Existing 3D generative models cannot yet match the fidelity of image or video generative models. State-of-the-art 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Souhaib Attaiki , Paul Guerrero , Duygu Ceylan , Niloy J. Mitra , Maks Ovsjanikov

Zero-shot 3D visual grounding requires localizing objects in unstructured environments from free-form natural language. Recent vision-language model (VLM) approaches achieve promising results but rely on view-dependent reasoning or implicit…

Computer Vision and Pattern Recognition · Computer Science 2026-05-22 Xuefei Sun , Xujia Zhang , Brendan Crowe , Doncey Albin , Christoffer Heckman

Text-to-3D generation has shown great promise in generating novel 3D content based on given text prompts. However, existing generative methods mostly focus on geometric or visual plausibility while ignoring precise physics perception for…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Qingshan Xu , Jiao Liu , Melvin Wong , Caishun Chen , Yew-Soon Ong

Grounding referring expressions in RGBD image has been an emerging field. We present a novel task of 3D visual grounding in single-view RGBD image where the referred objects are often only partially scanned due to occlusion. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Haolin Liu , Anran Lin , Xiaoguang Han , Lei Yang , Yizhou Yu , Shuguang Cui

Styled Handwritten Text Generation (HTG) has recently received attention from the computer vision and document analysis communities, which have developed several solutions, either GAN- or diffusion-based, that achieved promising results.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Vittorio Pippi , Fabio Quattrini , Silvia Cascianelli , Alessio Tonioni , Rita Cucchiara

Text-to-image (T2I) models have become increasingly capable of generating high-quality images. Yet, enforcing the explicit absence of a specified object or attribute remains a fundamentally challenging problem. Existing approaches,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Jungmin Ko , Jungwon Park , Jimyeong Kim , Changin Choi , Wonseok Lee , Wonjong Rhee

Recent advances in text-to-3D creation integrate the potent prior of Diffusion Models from text-to-image generation into 3D domain. Nevertheless, generating 3D scenes with multiple objects remains challenging. Therefore, we present…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Yueming Zhao , Xuening Yuan , Hongyu Yang , Di Huang

Learning-based image matching critically depends on large-scale, diverse, and geometrically accurate training data. 3D Gaussian Splatting (3DGS) enables photorealistic novel-view synthesis and thus is attractive for data generation.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Juncheng Chen , Chao Xu , Yanjun Cao

We present a training-free style-aligned image generation method that leverages a scale-wise autoregressive model. While large-scale text-to-image (T2I) models, particularly diffusion-based methods, have demonstrated impressive generation…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Jihun Park , Jongmin Gim , Kyoungmin Lee , Minseok Oh , Minwoo Choi , Jaeyeul Kim , Woo Chool Park , Sunghoon Im