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Human Mesh Recovery (HMR) from a single RGB image is a highly ambiguous problem, as an infinite set of 3D interpretations can explain the 2D observation equally well. Nevertheless, most HMR methods overlook this issue and make a single…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Guénolé Fiche , Simon Leglaive , Xavier Alameda-Pineda , Francesc Moreno-Noguer

Trajectory generation has garnered significant attention from researchers in the field of spatio-temporal analysis, as it can generate substantial synthesized human mobility trajectories that enhance user privacy and alleviate data…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Ji Cao , Tongya Zheng , Qinghong Guo , Yu Wang , Junshu Dai , Shunyu Liu , Jie Yang , Jie Song , Mingli Song

We introduce ProcGen3D, a new approach for 3D content creation by generating procedural graph abstractions of 3D objects, which can then be decoded into rich, complex 3D assets. Inspired by the prevalent use of procedural generators in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Xinyi Zhang , Daoyi Gao , Naiqi Li , Angela Dai

Autoregressive models have achieved remarkable success across various domains, yet their performance in 3D shape generation lags significantly behind that of diffusion models. In this paper, we introduce OctGPT, a novel multiscale…

Graphics · Computer Science 2025-04-16 Si-Tong Wei , Rui-Huan Wang , Chuan-Zhi Zhou , Baoquan Chen , Peng-Shuai Wang

Panoramic Image Generation (PIG) aims to create coherent images of arbitrary lengths. Most existing methods fall in the joint diffusion paradigm, but their complex and heuristic crop connection designs often limit their ability to achieve…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Teng Zhou , Xiaoyu Zhang , Yongchuan Tang

This paper presents a novel geometric representation for CAD Boundary Representation (B-Rep) based on volumetric distance functions, dubbed B-Rep Distance Functions (BR-DF). BR-DF encodes the surface mesh geometry of a CAD model as signed…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Fuyang Zhang , Pradeep Kumar Jayaraman , Xiang Xu , Yasutaka Furukawa

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…

Flexible image tokenizers aim to represent an image using an ordered 1D variable-length token sequence. This flexible tokenization is typically achieved through nested dropout, where a portion of trailing tokens is randomly truncated during…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Zixuan Fu , Lanqing Guo , Chong Wang , Binbin Song , Ding Liu , Bihan Wen

Text-to-CAD code generation is a long-horizon task that translates textual instructions into long sequences of interdependent operations. Existing methods typically decode text directly into executable code (e.g., bpy) without explicitly…

Artificial Intelligence · Computer Science 2026-04-14 Shengjie Gong , Wenjie Peng , Hongyuan Chen , Gangyu Zhang , Yunqing Hu , Huiyuan Zhang , Shuangping Huang , Tianshui Chen

Recently, Vector Quantized AutoRegressive (VQ-AR) models have shown remarkable results in text-to-image synthesis by equally predicting discrete image tokens from the top left to bottom right in the latent space. Although the simple…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Zhengcong Fei , Mingyuan Fan , Li Zhu , Junshi Huang

The field of image-to-video generation has made remarkable progress. However, challenges such as human limb twisting and facial distortion persist, especially when generating long videos or modeling intensive motions. Existing human image…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Chang Liu , Mengting Chen , Yixuan Huang , Haoning Wu , Chen Ju , Shuai Xiao , Jinsong Lan , Yanfeng Wang

Retrieval-Augmented Generation (RAG) has significantly enhanced Large Language Models' ability to access external knowledge, yet current graph-based RAG approaches face two critical limitations in managing hierarchical information: they…

Artificial Intelligence · Computer Science 2026-01-09 Chunyu Wei , Huaiyu Qin , Siyuan He , Yunhai Wang , Yueguo Chen

Text-to-Motion (T2M) generation aims to synthesize realistic and semantically aligned human motion sequences from natural language descriptions. However, current approaches face dual challenges: Generative models (e.g., diffusion models)…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Zhengdao Li , Siheng Wang , Zeyu Zhang , Hao Tang

Video generation necessitates both global coherence and local realism. This work presents a novel non-autoregressive method GLOBER, which first generates global features to obtain comprehensive global guidance and then synthesizes video…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Mingzhen Sun , Weining Wang , Zihan Qin , Jiahui Sun , Sihan Chen , Jing Liu

This report presents a comprehensive framework for generating high-quality 3D shapes and textures from diverse input prompts, including single images, multi-view images, and text descriptions. The framework consists of 3D shape generation…

This paper introduces PAG-a novel optimization and decoding approach that guides autoregressive generation of document identifiers in generative retrieval models through simultaneous decoding. To this aim, PAG constructs a set-based and…

Information Retrieval · Computer Science 2024-04-24 Hansi Zeng , Chen Luo , Hamed Zamani

AutoRegressive (AR) models have made notable progress in image generation, with Masked AutoRegressive (MAR) models gaining attention for their efficient parallel decoding. However, MAR models have traditionally underperformed when compared…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Yi Xin , Le Zhuo , Qi Qin , Siqi Luo , Yuewen Cao , Bin Fu , Yangfan He , Hongsheng Li , Guangtao Zhai , Xiaohong Liu , Peng Gao

Existing deep facial animation coding techniques efficiently compress talking head videos by applying deep generative models. Instead of compressing the entire video sequence, these methods focus on compressing only the keyframe and the…

Image and Video Processing · Electrical Eng. & Systems 2025-03-14 Riku Takahashi , Ryugo Morita , Fuma Kimishima , Kosuke Iwama , Jinjia Zhou

Most sequence-to-sequence (seq2seq) models are autoregressive; they generate each token by conditioning on previously generated tokens. In contrast, non-autoregressive seq2seq models generate all tokens in one pass, which leads to increased…

Computation and Language · Computer Science 2019-10-10 Xuezhe Ma , Chunting Zhou , Xian Li , Graham Neubig , Eduard Hovy

Recent generative models based on score matching and flow matching have significantly advanced generation tasks, but their potential in discriminative tasks remains underexplored. Previous approaches, such as generative classifiers, have…

Computer Vision and Pattern Recognition · Computer Science 2025-08-14 Rongkun Xue , Jinouwen Zhang , Yazhe Niu , Dazhong Shen , Bingqi Ma , Yu Liu , Jing Yang