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Visual tokenizers are fundamental to image generation. They convert visual data into discrete tokens, enabling transformer-based models to excel at image generation. Despite their success, VQ-based tokenizers like VQGAN face significant…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Zechen Bai , Jianxiong Gao , Ziteng Gao , Pichao Wang , Zheng Zhang , Tong He , Mike Zheng Shou

Discrete image tokenizers are commonly trained in two stages: first for reconstruction, and then with a prior model fitted to the frozen token sequences. This decoupling leaves the tokenizer unaware of the model that will later generate its…

计算机视觉与模式识别 · 计算机科学 2026-05-08 Bowen Zheng , Yihong Luo , Tianyang Hu

Recent progress in controllable image generation and editing is largely driven by diffusion-based methods. Although diffusion models perform exceptionally well in specific tasks with tailored designs, establishing a unified model is still…

计算机视觉与模式识别 · 计算机科学 2025-01-09 Jiteng Mu , Nuno Vasconcelos , Xiaolong Wang

Generative recommender systems have recently attracted attention by formulating next-item prediction as an autoregressive sequence generation task. However, most existing methods optimize standard next-token likelihood and implicitly treat…

信息检索 · 计算机科学 2026-01-27 Wei-Ning Chiu , Chuan-Ju Wang , Pu-Jen Cheng

Autoregressive multimodal large language models have recently gained popularity for image generation, driven by advances in foundation models. To enhance alignment and detail, newer approaches employ chain-of-thought (CoT) reasoning,…

Text and faces are among the most perceptually salient and practically important patterns in visual generation, yet they remain challenging for autoregressive generators built on discrete tokenization. A central bottleneck is the tokenizer:…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Yang Yue , Fangyun Wei , Tianyu He , Jinjing Zhao , Zanlin Ni , Zeyu Liu , Jiayi Guo , Lei Shi , Yue Dong , Li Chen , Ji Li , Gao Huang , Dong Chen

Autoregressive models are widely used for tasks such as image and audio generation. The sampling process of these models, however, does not allow interruptions and cannot adapt to real-time computational resources. This challenge impedes…

机器学习 · 计算机科学 2021-02-24 Yilun Xu , Yang Song , Sahaj Garg , Linyuan Gong , Rui Shu , Aditya Grover , Stefano Ermon

In image retrieval, deep local features learned in a data-driven manner have been demonstrated effective to improve retrieval performance. To realize efficient retrieval on large image database, some approaches quantize deep local features…

图像与视频处理 · 电气工程与系统科学 2021-12-14 Hui Wu , Min Wang , Wengang Zhou , Yang Hu , Houqiang Li

Text-to-image generative models have achieved remarkable visual quality but still struggle with compositionality$-$accurately capturing object relationships, attribute bindings, and fine-grained details in prompts. A key limitation is that…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Arman Zarei , Jiacheng Pan , Matthew Gwilliam , Soheil Feizi , Zhenheng Yang

Recent advances in text-to-image generative models have enabled numerous practical applications, including subject-driven generation, which fine-tunes pretrained models to capture subject semantics from only a few examples. While…

计算机视觉与模式识别 · 计算机科学 2025-07-31 Jiwoo Chung , Sangeek Hyun , Hyunjun Kim , Eunseo Koh , MinKyu Lee , Jae-Pil Heo

Fine-grained image recognition is a longstanding computer vision challenge that focuses on differentiating objects belonging to multiple subordinate categories within the same meta-category. Since images belonging to the same meta-category…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Yifan Pu , Yizeng Han , Yulin Wang , Junlan Feng , Chao Deng , Gao Huang

This paper argues that generating output tokens is more effective than using pooled representations for prediction tasks because token-level generation retains more mutual information. Since LLMs are trained on massive text corpora using…

This paper enhances image-GPT (iGPT), one of the pioneering works that introduce autoregressive pretraining to predict the next pixels for visual representation learning. Two simple yet essential changes are made. First, we shift the…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Sucheng Ren , Zeyu Wang , Hongru Zhu , Junfei Xiao , Alan Yuille , Cihang Xie

The usage of deep generative models for image compression has led to impressive performance gains over classical codecs while neural video compression is still in its infancy. Here, we propose an end-to-end, deep generative modeling…

计算机视觉与模式识别 · 计算机科学 2019-11-05 Jun Han , Salvator Lombardo , Christopher Schroers , Stephan Mandt

We explore the use of Vector Quantized Variational AutoEncoder (VQ-VAE) models for large scale image generation. To this end, we scale and enhance the autoregressive priors used in VQ-VAE to generate synthetic samples of much higher…

机器学习 · 计算机科学 2019-06-04 Ali Razavi , Aaron van den Oord , Oriol Vinyals

The success of autoregressive (AR) language models in text generation has inspired the computer vision community to adopt Large Language Models (LLMs) for image generation. However, considering the essential differences between text and…

计算机视觉与模式识别 · 计算机科学 2024-10-22 Xuantong Liu , Shaozhe Hao , Xianbiao Qi , Tianyang Hu , Jun Wang , Rong Xiao , Yuan Yao

The image captioning task is typically realized by an auto-regressive method that decodes the text tokens one by one. We present a diffusion-based captioning model, dubbed the name DDCap, to allow more decoding flexibility. Unlike image…

计算机视觉与模式识别 · 计算机科学 2022-12-12 Zixin Zhu , Yixuan Wei , Jianfeng Wang , Zhe Gan , Zheng Zhang , Le Wang , Gang Hua , Lijuan Wang , Zicheng Liu , Han Hu

We empirically study autoregressive pre-training from videos. To perform our study, we construct a series of autoregressive video models, called Toto. We treat videos as sequences of visual tokens and train transformer models to…

计算机视觉与模式识别 · 计算机科学 2025-01-10 Jathushan Rajasegaran , Ilija Radosavovic , Rahul Ravishankar , Yossi Gandelsman , Christoph Feichtenhofer , Jitendra Malik

The rapid evolution of image generation models has revolutionized visual content creation, enabling the synthesis of highly realistic and contextually accurate images for diverse applications. However, the potential for misuse, such as…

计算机视觉与模式识别 · 计算机科学 2025-06-16 Yihan Wu , Xuehao Cui , Ruibo Chen , Georgios Milis , Heng Huang

Conditional image modeling based on textual descriptions is a relatively new domain in unsupervised learning. Previous approaches use a latent variable model and generative adversarial networks. While the formers are approximated by using…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Tehseen Zia , Shahan Arif , Shakeeb Murtaza , Mirza Ahsan Ullah