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Fine-tuning pre-trained language models (PLMs) has become a dominant paradigm in applying PLMs to downstream tasks. However, with limited fine-tuning, PLMs still struggle with the discrepancies between the representation obtained from the…

Computation and Language · Computer Science 2025-05-30 Fujun Zhang , Xiaoying Fan , XiangDong Su , Guanglai Gao

In this paper, we study the diffusability (learnability) of variational autoencoders (VAE) in latent diffusion. First, we show that pixel-space diffusion trained with an MSE objective is inherently biased toward learning low and mid spatial…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Mang Ning , Mingxiao Li , Le Zhang , Lanmiao Liu , Matthew B. Blaschko , Albert Ali Salah , Itir Onal Ertugrul

This technical report introduces PIXART-{\delta}, a text-to-image synthesis framework that integrates the Latent Consistency Model (LCM) and ControlNet into the advanced PIXART-{\alpha} model. PIXART-{\alpha} is recognized for its ability…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Junsong Chen , Yue Wu , Simian Luo , Enze Xie , Sayak Paul , Ping Luo , Hang Zhao , Zhenguo Li

The images produced by diffusion models can attain excellent perceptual quality. However, it is challenging for diffusion models to guarantee distortion, hence the integration of diffusion models and image compression models still needs…

Image and Video Processing · Electrical Eng. & Systems 2024-05-03 Yiyang Ma , Wenhan Yang , Jiaying Liu

Autoencoders represent an effective approach for computing the underlying factors characterizing datasets of different types. The latent representation of autoencoders have been studied in the context of enabling interpolation between data…

Machine Learning · Computer Science 2020-10-23 Alon Oring , Zohar Yakhini , Yacov Hel-Or

Detection of rare lesions in whole-body CT is fundamentally limited by extreme class imbalance and low target-to-volume ratios, producing precision collapse despite high AUROC. Synthetic augmentation with diffusion models offers promise,…

Image and Video Processing · Electrical Eng. & Systems 2026-03-02 Yifan Li , Mehrdad Salimitari , Taiyu Zhang , Guang Li , David Dreizin

With the advancements in denoising diffusion probabilistic models (DDPMs), image inpainting has significantly evolved from merely filling information based on nearby regions to generating content conditioned on various prompts such as text,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Lingzhi Pan , Tong Zhang , Bingyuan Chen , Qi Zhou , Wei Ke , Sabine Süsstrunk , Mathieu Salzmann

Mask-based lensless imagers use simple optics and computational reconstruction to design compact form factor cameras with compressive imaging ability. However, these imagers generally suffer from poor reconstruction quality. Here, we…

Generating semantic segmentation datasets has consistently been laborious and time-consuming, particularly in the context of large models or specialized domains(i.e. Medical Imaging or Remote Sensing). Specifically, large models necessitate…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Jiaru Jia , Mingzhe Liu , Jiake Xie , Xin Chen , Hong Zhang , Feixiang Zhao , Aiqing Yang

Deep image generation is becoming a tool to enhance artists and designers creativity potential. In this paper, we aim at making the generation process more structured and easier to interact with. Inspired by vector graphics systems, we…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Othman Sbai , Camille Couprie , Mathieu Aubry

Modern diffusion-based inpainting models pose significant challenges for image forgery localization (IFL), as their full regeneration pipelines reconstruct the entire image via a latent decoder, disrupting the camera-level noise patterns…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Paschalis Giakoumoglou , Symeon Papadopoulos

This paper presents Pixel-Perfect Depth, a monocular depth estimation model based on pixel-space diffusion generation that produces high-quality, flying-pixel-free point clouds from estimated depth maps. Current generative depth estimation…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Gangwei Xu , Haotong Lin , Hongcheng Luo , Xianqi Wang , Jingfeng Yao , Lianghui Zhu , Yuechuan Pu , Cheng Chi , Haiyang Sun , Bing Wang , Guang Chen , Hangjun Ye , Sida Peng , Xin Yang

Pixel-space diffusion has re-emerged as a promising alternative to latent-space generation because it avoids the representation bottleneck introduced by VAEs. Yet most existing methods still treat image generation as a frequency-homogeneous…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Mingfeng Lin , Jiakun Chen , Liang Han , Liqiang Nie

Perception-centric systems are typically implemented with a modular encoder-decoder pipeline: a vision backbone for feature extraction and a separate decoder (or late-fusion module) for task prediction. This raises a central question: is…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Aviraj Bevli , Sofian Chaybouti , Yasser Dahou , Hakim Hacid , Ngoc Dung Huynh , Phuc H. Le Khac , Sanath Narayan , Wamiq Reyaz Para , Ankit Singh

Recent video generation models largely rely on video autoencoders that compress pixel-space videos into latent representations. However, existing video autoencoders suffer from three major limitations: (1) fixed-rate compression that wastes…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yao Teng , Minxuan Lin , Xian Liu , Shuai Wang , Xiao Yang , Xihui Liu

This paper introduces an approach, named DFormer, for universal image segmentation. The proposed DFormer views universal image segmentation task as a denoising process using a diffusion model. DFormer first adds various levels of Gaussian…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Hefeng Wang , Jiale Cao , Rao Muhammad Anwer , Jin Xie , Fahad Shahbaz Khan , Yanwei Pang

The Latent Diffusion Model (LDM) has demonstrated strong capabilities in high-resolution image generation and has been widely employed for Pose-Guided Person Image Synthesis (PGPIS), yielding promising results. However, the compression…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Jiaqi Liu , Jichao Zhang , Paolo Rota , Nicu Sebe

While latent diffusion models achieve impressive image editing results, their application to iterative editing of the same image is severely restricted. When trying to apply consecutive edit operations using current models, they accumulate…

Graphics · Computer Science 2025-04-29 Gal Almog , Ariel Shamir , Ohad Fried

We present a method that computes an interpretable representation of material appearance within a highly compact, disentangled latent space. This representation is learned in a self-supervised fashion using an adapted FactorVAE. We train…

Graphics · Computer Science 2025-07-18 Santiago Jimenez-Navarro , Julia Guerrero-Viu , Belen Masia

Image demoir\'eing remains a challenging task due to the complex interplay between texture corruption and color distortions caused by moir\'e patterns. Existing methods, especially those relying on direct image-to-image restoration, often…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Xiaoyang Liu , Bolin Qiu , Jiezhang Cao , Zheng Chen , Yulun Zhang , Xiaokang Yang