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Diffusion models have achieved remarkable success in image generation but their practical application is often hindered by the slow sampling speed. Prior efforts of improving efficiency primarily focus on compressing models or reducing the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Jiuyi Xu , Qing Jin , Meida Chen , Andrew Feng , Yang Sui , Yangming Shi

Diffusion models have exhibited remarkable capabilities in text-to-image generation. However, their performance in image-to-text generation, specifically image captioning, has lagged behind Auto-Regressive (AR) models, casting doubt on…

Artificial Intelligence · Computer Science 2024-04-17 Yuchi Wang , Shuhuai Ren , Rundong Gao , Linli Yao , Qingyan Guo , Kaikai An , Jianhong Bai , Xu Sun

Diffusion model is a promising approach to image generation and has been employed for Pose-Guided Person Image Synthesis (PGPIS) with competitive performance. While existing methods simply align the person appearance to the target pose,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Yanzuo Lu , Manlin Zhang , Andy J Ma , Xiaohua Xie , Jian-Huang Lai

High-resolution synthesis/projection of images over a large field-of-view (FOV) is hindered by the restricted space-bandwidth-product (SBP) of wavefront modulators. We report a deep learning-enabled diffractive display design that is based…

Diffusion Transformers (DiTs) can generate short photorealistic videos, yet directly training and sampling longer videos with full attention across the video remains computationally challenging. Alternative methods break long videos down…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Bhishma Dedhia , David Bourgin , Krishna Kumar Singh , Yuheng Li , Yan Kang , Zhan Xu , Niraj K. Jha , Yuchen Liu

Latent diffusion models such as Stable Diffusion 1.5 offer strong generative priors that are highly valuable for image restoration, yet their full pipelines remain too computationally heavy for deployment on edge devices. Existing…

Many studies have concentrated on constructing supervised models utilizing paired datasets for image denoising, which proves to be expensive and time-consuming. Current self-supervised and unsupervised approaches typically rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Huaqiu Li , Wang Zhang , Xiaowan Hu , Tao Jiang , Zikang Chen , Haoqian Wang

Existing video Variational Autoencoders (VAEs) generally overlook the similarity between frame contents, leading to redundant latent modeling. In this paper, we propose decoupled VAE (DeCo-VAE) to achieve compact latent representation.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Xiangchen Yin , Jiahui Yuan , Zhangchi Hu , Wenzhang Sun , Jie Chen , Xiaozhen Qiao , Hao Li , Xiaoyan Sun

The application of the context-adaptive entropy model significantly improves the rate-distortion (R-D) performance, in which hyperpriors and autoregressive models are jointly utilized to effectively capture the spatial redundancy of the…

Image and Video Processing · Electrical Eng. & Systems 2022-09-09 Haisheng Fu , Feng Liang

High-resolution 3D object generation remains a challenging task primarily due to the limited availability of comprehensive annotated training data. Recent advancements have aimed to overcome this constraint by harnessing image generative…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Zijie Pan , Jiachen Lu , Xiatian Zhu , Li Zhang

Diffusion models are emerging as powerful solutions for generating high-fidelity and diverse images, often surpassing GANs under many circumstances. However, their slow inference speed hinders their potential for real-time applications. To…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Luan Thanh Trinh , Tomoki Hamagami

Temporally consistent surface reconstruction of dynamic 3D objects from unstructured point cloud data remains challenging, especially for very long sequences. Existing methods either optimize deformations incrementally, risking drift and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Julian Kaltheuner , Hannah Dröge , Markus Plack , Patrick Stotko , Reinhard Klein

Recovering clean and accurate geometry from images is essential for robotics and augmented reality. However, existing geometry foundation models still suffer severely from flying pixels and the loss of fine details. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Gangwei Xu , Haotong Lin , Hongcheng Luo , Haiyang Sun , Bing Wang , Guang Chen , Sida Peng , Hangjun Ye , Xin Yang

Diffusion-based image compression has demonstrated impressive perceptual performance. However, it suffers from two critical drawbacks: (1) excessive decoding latency due to multi-step sampling, and (2) poor fidelity resulting from…

Computer Vision and Pattern Recognition · Computer Science 2025-12-03 Zheng Chen , Mingde Zhou , Jinpei Guo , Jiale Yuan , Yifei Ji , Yulun Zhang

Recent advancements in diffusion models have significantly improved performance in super-resolution (SR) tasks. However, previous research often overlooks the fundamental differences between SR and general image generation. General image…

Image and Video Processing · Electrical Eng. & Systems 2024-10-31 Hanlin Wu , Jiangwei Mo , Xiaohui Sun , Jie Ma

Pixel-space diffusion has recently re-emerged as a strong alternative to latent diffusion, enabling high-quality generation without pretrained autoencoders. However, standard pixel-space diffusion models receive relatively weak semantic…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Han Lin , Xichen Pan , Zun Wang , Yue Zhang , Chu Wang , Jaemin Cho , Mohit Bansal

Previous knowledge distillation (KD) methods mostly focus on compressing network architectures, which is not thorough enough in deployment as some costs like transmission bandwidth and imaging equipment are related to the image size.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Guangyu Guo , Dingwen Zhang , Longfei Han , Nian Liu , Ming-Ming Cheng , Junwei Han

Diffusion-based extreme image compression methods have achieved impressive performance at extremely low bitrates. However, constrained by the iterative denoising process that starts from pure noise, these methods are limited in both…

Image and Video Processing · Electrical Eng. & Systems 2025-05-27 Zhiyuan Li , Yanhui Zhou , Hao Wei , Chenyang Ge , Ajmal Mian

Unsupervised pixel-level defective region segmentation is an important task in image-based anomaly detection for various industrial applications. The state-of-the-art methods have their own advantages and limitations:…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Shancong Mou , Meng Cao , Haoping Bai , Ping Huang , Jianjun Shi , Jiulong Shan

There is a growing interest in the use of latent diffusion models (LDMs) for image restoration (IR) tasks due to their ability to model effectively the distribution of natural images. While significant progress has been made, there are…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Di You , Daniel Siromani , Pier Luigi Dragotti