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Diffusion Transformers (DiTs) have emerged as a leading architecture for text-to-image synthesis, producing high-quality and photorealistic images. However, the quadratic scaling properties of the attention in DiTs hinder image generation…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Philipp Becker , Abhinav Mehrotra , Ruchika Chavhan , Malcolm Chadwick , Luca Morreale , Mehdi Noroozi , Alberto Gil Ramos , Sourav Bhattacharya

While Diffusion Transformers (DiTs) have achieved notable progress in video generation, this long-sequence generation task remains constrained by the quadratic complexity inherent to self-attention mechanisms, creating significant barriers…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Yuxi Liu , Yipeng Hu , Zekun Zhang , Kunze Jiang , Kun Yuan

We introduce a diffusion-transformer (DiT) framework for single-image reflection removal that leverages the generalization strengths of foundation diffusion models in the restoration setting. Rather than relying on task-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Daniyar Zakarin , Thiemo Wandel , Anton Obukhov , Dengxin Dai

Diffusion Transformers (DiTs) have recently gained substantial attention in both industrial and academic fields for their superior visual generation capabilities, outperforming traditional diffusion models that use U-Net. However,the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Wenxuan Liu , Sai Qian Zhang

This paper investigates robust semantic communications over multiple-input multiple-output (MIMO) fading channels. Current semantic communications over MIMO channels mainly focus on channel adaptive encoding and decoding, which lacks…

Information Theory · Computer Science 2024-07-09 Yiheng Duan , Tong Wu , Zhiyong Chen , Meixia Tao

Diffusion Transformers (DiTs) achieve strong visual quality, but their iterative denoising process requires many costly Transformer evaluations. Training-free acceleration methods reduce this cost by caching, forecasting, or verifying…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuhang Zhang , Junxiang Qiu , Huixia Ben , Zhenhua Tang , Shuo Wang , Yanbin Hao

In this paper, we investigate how to convert a pre-trained Diffusion Transformer (DiT) into a linear DiT, as its simplicity, parallelism, and efficiency for image generation. Through detailed exploration, we offer a suite of ready-to-use…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Jiahao Wang , Ning Kang , Lewei Yao , Mengzhao Chen , Chengyue Wu , Songyang Zhang , Shuchen Xue , Yong Liu , Taiqiang Wu , Xihui Liu , Kaipeng Zhang , Shifeng Zhang , Wenqi Shao , Zhenguo Li , Ping Luo

Diffusion Transformer (DiT), a promising diffusion model for visual generation, demonstrates impressive performance but incurs significant computational overhead. Intriguingly, analysis of pre-trained DiT models reveals that global…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Yuang Ai , Qihang Fan , Xuefeng Hu , Zhenheng Yang , Ran He , Huaibo Huang

The Diffusion Transformer (DiT) architecture is the state-of-the-art paradigm for high-fidelity image generation, underpinning models like Stable Diffusion-3 and FLUX.1. However, deploying these models on resource-constrained mobile devices…

Computer Vision and Pattern Recognition · Computer Science 2026-05-18 Kunpeng Du , Haizhen Xie , Sen Lu , Lei Yu , Binglei Bao , Huaao Tang , Chuntao Liu , Hao Wu , Yang Zhao , Zhicai Huang , Heyuan Gao , Zhijun Tu , Jie Hu , Xinghao Chen

Diffusion models are widely recognized for generating high-quality and diverse images, but their poor real-time performance has led to numerous acceleration works, primarily focusing on UNet-based structures. With the more successful…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Pengtao Chen , Mingzhu Shen , Peng Ye , Jianjian Cao , Chongjun Tu , Christos-Savvas Bouganis , Yiren Zhao , Tao Chen

Transformer-based diffusion models have achieved significant advancements across a variety of generative tasks. However, producing high-quality outputs typically necessitates large transformer models, which result in substantial training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Gongfan Fang , Xinyin Ma , Xinchao Wang

Diffusion transformers (DiTs) achieve high generative quality but lock FLOPs to image resolution, limiting principled latency-quality trade-offs, and allocate computation uniformly across input spatial tokens, wasting resource allocation to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Moayed Haji-Ali , Willi Menapace , Ivan Skorokhodov , Dogyun Park , Anil Kag , Michael Vasilkovsky , Sergey Tulyakov , Vicente Ordonez , Aliaksandr Siarohin

Doubly selective (DS) channel estimation in largescale multiple-input multiple-output (MIMO) systems is a challenging problem due to the requirement of unaffordable pilot overheads and prohibitive complexity. In this paper, we propose a…

Information Theory · Computer Science 2015-11-10 Bo Gong , Qibo Qin , Xiang Ren , Lin Gui , Hanwen Luo , Wen Chen

Acquiring the channel state information from limited and noisy observations at pilot positions is critical for wireless multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) systems. In this paper, we view…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Weijie Zhou , Zhaoyang Zhang , Yuzhi Yang , Sen Yan , Zhixian Kong , Merouane Debbah

Diffusion Transformers (DiTs) deliver state-of-the-art generative performance but their quadratic training cost with sequence length makes large-scale pretraining prohibitively expensive. Token dropping can reduce training cost, yet na\"ive…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Dogyun Park , Moayed Haji-Ali , Yanyu Li , Willi Menapace , Sergey Tulyakov , Hyunwoo J. Kim , Aliaksandr Siarohin , Anil Kag

Diffusion-based image compression has recently shown outstanding perceptual fidelity, yet its practicality is hindered by prohibitive sampling overhead and high memory usage. Most existing diffusion codecs employ U-Net architectures, where…

Image and Video Processing · Electrical Eng. & Systems 2026-03-16 Junqi Shi , Ming Lu , Xingchen Li , Anle Ke , Ruiqi Zhang , Zhan Ma

This paper proposes a deep learning-based channel estimation method for multi-cell interference-limited massive MIMO systems, in which base stations equipped with a large number of antennas serve multiple single-antenna users. The proposed…

Signal Processing · Electrical Eng. & Systems 2019-08-02 Eren Balevi , Akash Doshi , Jeffrey G. Andrews

Accurate channel impulse response (CIR) is required for coherent detection and it can also help improve communication quality of service in next-generation wireless communication systems. One of the advanced systems is multi-input…

Information Theory · Computer Science 2013-02-07 Guan Gui , Wei Peng , Fumiyuki Adachi

Diffusion Transformer (DiT), an emerging diffusion model for image generation, has demonstrated superior performance but suffers from substantial computational costs. Our investigations reveal that these costs stem from the static inference…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Wangbo Zhao , Yizeng Han , Jiasheng Tang , Kai Wang , Yibing Song , Gao Huang , Fan Wang , Yang You

Diffusion models have become leading approaches for high-fidelity image generation. Recent DiT-based diffusion models, in particular, achieve strong prompt adherence while producing high-quality samples. We propose SHIFT, a simple but…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Nina Konovalova , Andrey Kuznetsov , Aibek Alanov