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Diffusion-based text-to-image (T2I) models have recently excelled in high-quality image generation, particularly in a training-free manner, enabling cost-effective adaptability and generalization across diverse tasks. However, while the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Woojung Han , Yeonkyung Lee , Chanyoung Kim , Kwanghyun Park , Seong Jae Hwang

We introduce 3inGAN, an unconditional 3D generative model trained from 2D images of a single self-similar 3D scene. Such a model can be used to produce 3D "remixes" of a given scene, by mapping spatial latent codes into a 3D volumetric…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Animesh Karnewar , Oliver Wang , Tobias Ritschel , Niloy Mitra

Masked image modeling (MIM) has emerged as a promising approach for pre-training Vision Transformers (ViTs). MIMs predict masked tokens token-wise to recover target signals that are tokenized from images or generated by pre-trained models…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Taekyung Kim , Byeongho Heo , Dongyoon Han

Multi-subject image generation requires seamlessly harmonizing multiple reference identities within a coherent scene. However, existing methods relying on rigid spatial masks or localized attention often struggle with the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Honghao Cai , Xiangyuan Wang , Jing Li , Yunhao Bai , Tianze Zhou , Haohua Chen , Chao Hui , Changhao Qiao , Runqi Wang , Sijie Xu , Yuyang Hao , Zezhou Cui , Yuyuan Yang , Wei Zhu , Yibo Chen , Xu Tang , Yao Hu , Zhen Li

Existing text-to-video diffusion models rely solely on text-only encoders for their pretraining. This limitation stems from the absence of large-scale multimodal prompt video datasets, resulting in a lack of visual grounding and restricting…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Yuwei Fang , Willi Menapace , Aliaksandr Siarohin , Tsai-Shien Chen , Kuan-Chien Wang , Ivan Skorokhodov , Graham Neubig , Sergey Tulyakov

Auto-Regressive (AR) models have achieved impressive results in 2D image generation by modeling joint distributions in the grid space. While this approach has been extended to the 3D domain for powerful shape generation, it still has two…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Simian Luo , Xuelin Qian , Yanwei Fu , Yinda Zhang , Ying Tai , Zhenyu Zhang , Chengjie Wang , Xiangyang Xue

How to integrate and verify spatial intelligence in foundation models remains an open challenge. Current practice often proxies Visual-Spatial Intelligence (VSI) with purely textual prompts and VQA-style scoring, which obscures geometry,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Guanlin Wu , Boyan Su , Yang Zhao , Pu Wang , Yichen Lin , Hao Frank Yang

Text-to-image diffusion models have recently become highly capable, yet their behavior in multi-object scenes remains unreliable: models often produce an incorrect number of instances and exhibit semantics leaking across objects. We trace…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Sanghyun Jo , Wooyeol Lee , Ziseok Lee , Kyungsu Kim

Text-to-image (T2I) diffusion models have revolutionized visual content creation, but extending these capabilities to text-to-video (T2V) generation remains a challenge, particularly in preserving temporal consistency. Existing methods that…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Dohun Lee , Bryan S Kim , Geon Yeong Park , Jong Chul Ye

Accurate 3D instance segmentation is crucial for high-quality scene understanding in the 3D vision domain. However, 3D instance segmentation based on 2D-to-3D lifting approaches struggle to produce precise instance-level segmentation, due…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Chaolei Wang , Yang Luo , Jing Du , Siyu Chen , Yiping Chen , Ting Han

Diffusion models for Text-to-Image (T2I) conditional generation have recently achieved tremendous success. Yet, aligning these models with user's intentions still involves a laborious trial-and-error process, and this challenging alignment…

Machine Learning · Computer Science 2025-02-12 Chao Wang , Giulio Franzese , Alessandro Finamore , Massimo Gallo , Pietro Michiardi

Recent advances in large-scale text-to-image generation models have led to a surge in subject-driven text-to-image generation, which aims to produce customized images that align with textual descriptions while preserving the identity of…

Computer Vision and Pattern Recognition · Computer Science 2025-05-29 Kewen Chen , Xiaobin Hu , Wenqi Ren

We introduce a novel, training-free approach for enhancing alignment in Transformer-based Text-Guided Diffusion Models (TGDMs). Existing TGDMs often struggle to generate semantically aligned images, particularly when dealing with complex…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Shulei Wang , Wang Lin , Hai Huang , Hanting Wang , Sihang Cai , WenKang Han , Tao Jin , Jingyuan Chen , Jiacheng Sun , Jieming Zhu , Zhou Zhao

Multi-instance registration is a challenging problem in computer vision and robotics, where multiple instances of an object need to be registered in a standard coordinate system. In this work, we propose the first iterative framework called…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Xinyue Cao , Xiyu Zhang , Yuxin Cheng , Zhaoshuai Qi , Yanning Zhang , Jiaqi Yang

Humans naturally perceive the geometric structure and semantic content of a 3D world as intertwined dimensions, enabling coherent and accurate understanding of complex scenes. However, most prior approaches prioritize training large…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Hao Li , Zhengyu Zou , Fangfu Liu , Xuanyang Zhang , Fangzhou Hong , Yukang Cao , Yushi Lan , Manyuan Zhang , Gang Yu , Dingwen Zhang , Ziwei Liu

Learning semantic representations from point sets of 3D object shapes is often challenged by significant geometric variations, primarily due to differences in data acquisition methods. Typically, training data is generated using point…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Longkun Zou , Kangjun Liu , Ke Chen , Kailing Guo , Kui Jia , Yaowei Wang

Synthetic data and novel rendering techniques have greatly influenced computer vision research in tasks like target tracking and human pose estimation. However, robotics research has lagged behind in leveraging it due to the limitations of…

Robotics · Computer Science 2024-08-23 Elia Bonetto , Chenghao Xu , Aamir Ahmad

Unsupervised multi-object scene decomposition is a fast-emerging problem in representation learning. Despite significant progress in static scenes, such models are unable to leverage important dynamic cues present in video. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2020-06-29 Polina Zablotskaia , Edoardo A. Dominici , Leonid Sigal , Andreas M. Lehrmann

Painting textures for existing geometries is a critical yet labor-intensive process in 3D asset generation. Recent advancements in text-to-image (T2I) models have led to significant progress in texture generation. Most existing research…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Yifei Feng , Mingxin Yang , Shuhui Yang , Sheng Zhang , Jiaao Yu , Zibo Zhao , Yuhong Liu , Jie Jiang , Chunchao Guo

In the visual spatial understanding (VSU) area, spatial image-to-text (SI2T) and spatial text-to-image (ST2I) are two fundamental tasks that appear in dual form. Existing methods for standalone SI2T or ST2I perform imperfectly in spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Yu Zhao , Hao Fei , Xiangtai Li , Libo Qin , Jiayi Ji , Hongyuan Zhu , Meishan Zhang , Min Zhang , Jianguo Wei