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One-class anomaly detection aims to detect objects that do not belong to a predefined normal class. In practice training data lack those anomalous samples; hence state-of-the-art methods are trained to discriminate between normal and…

计算机视觉与模式识别 · 计算机科学 2025-03-10 Romain Hermary , Vincent Gaudillière , Abd El Rahman Shabayek , Djamila Aouada

Obtaining a useful estimate of an object from highly incomplete imaging measurements remains a holy grail of imaging science. Deep learning methods have shown promise in learning object priors or constraints to improve the conditioning of…

图像与视频处理 · 电气工程与系统科学 2021-06-28 Varun A. Kelkar , Mark A. Anastasio

Collection of massive well-annotated samples is effective in improving object detection performance but is extremely laborious and costly. Instead of data collection and annotation, the recently proposed Cut-Paste methods [12, 15] show the…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Hao Wang , Qilong Wang , Fan Yang , Weiqi Zhang , Wangmeng Zuo

We propose a method for learning landmark detectors for visual objects (such as the eyes and the nose in a face) without any manual supervision. We cast this as the problem of generating images that combine the appearance of the object as…

计算机视觉与模式识别 · 计算机科学 2018-12-17 Tomas Jakab , Ankush Gupta , Hakan Bilen , Andrea Vedaldi

We develop a new framework for learning variational autoencoders and other deep generative models that balances generative and discriminative goals. Our framework optimizes model parameters to maximize a variational lower bound on the…

Recent text-to-image generative models can generate high-fidelity images from text prompts. However, these models struggle to consistently generate the same objects in different contexts with the same appearance. Consistent object…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Alec Helbling , Evan Montoya , Duen Horng Chau

Scene graph generation is a sophisticated task because there is no specific recognition pattern (e.g., "looking at" and "near" have no conspicuous difference concerning vision, whereas "near" could occur between entities with different…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Xiaoguang Chang , Teng Wang , Changyin Sun , Wenzhe Cai

This paper presents GenDet, a novel framework that redefines object detection as an image generation task. In contrast to traditional approaches, GenDet adopts a pioneering approach by leveraging generative modeling: it conditions on the…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Chen Min , Chengyang Li , Fanjie Kong , Qi Zhu , Dawei Zhao , Liang Xiao

Cameras capture scene-referred linear raw images, which are processed by onboard image signal processors (ISPs) into display-referred 8-bit sRGB outputs. Although raw data is more faithful for low-level vision tasks, collecting large-scale…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Dongyoung Kim , Junyong Lee , Abhijith Punnappurath , Mahmoud Afifi , Sangmin Han , Alex Levinshtein , Michael S. Brown

We present a task-aware approach to synthetic data generation. Our framework employs a trainable synthesizer network that is optimized to produce meaningful training samples by assessing the strengths and weaknesses of a `target' network.…

计算机视觉与模式识别 · 计算机科学 2019-07-10 Shashank Tripathi , Siddhartha Chandra , Amit Agrawal , Ambrish Tyagi , James M. Rehg , Visesh Chari

Text-to-image diffusion generative models can generate high quality images at the cost of tedious prompt engineering. Controllability can be improved by introducing layout conditioning, however existing methods lack layout editing ability…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Alessandro Fontanella , Petru-Daniel Tudosiu , Yongxin Yang , Shifeng Zhang , Sarah Parisot

The heightened realism of AI-generated images can be attributed to the rapid development of synthetic models, including generative adversarial networks (GANs) and diffusion models (DMs). The malevolent use of synthetic images, such as the…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Haiwei Wu , Jiantao Zhou , Shile Zhang

Coarse-guided visual generation, which synthesizes fine visual samples from degraded or low-fidelity coarse references, is essential for various real-world applications. While training-based approaches are effective, they are inherently…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Yanghao Wang , Ziqi Jiang , Zhen Wang , Long Chen

Score-based generative models (SGMs) have recently emerged as a promising class of generative models. However, a fundamental limitation is that their inference is very slow due to a need for many (e.g., 2000) iterations of sequential…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Hengyuan Ma , Li Zhang , Xiatian Zhu , Jianfeng Feng

Bias field, which is caused by imperfect MR devices or imaged objects, introduces intensity inhomogeneity into MR images and degrades the performance of MR image analysis methods. Many retrospective algorithms were developed to facilitate…

图像与视频处理 · 电气工程与系统科学 2023-08-01 Dong Liang , Xingyu Qiu , Kuanquan Wang , Gongning Luo , Wei Wang , Yashu Liu

Many promising applications of supervised machine learning face hurdles in the acquisition of labeled data in sufficient quantity and quality, creating an expensive bottleneck. To overcome such limitations, techniques that do not depend on…

Dramatic appearance variation due to pose constitutes a great challenge in fine-grained recognition, one which recent methods using attention mechanisms or second-order statistics fail to adequately address. Modern CNNs typically lack an…

计算机视觉与模式识别 · 计算机科学 2018-09-12 Pei Guo , Ryan Farrell

Learning to generate natural scenes has always been a daunting task in computer vision. This is even more laborious when generating images with very different views. When the views are very different, the view fields have little overlap or…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Hao Ding , Songsong Wu , Hao Tang , Fei Wu , Guangwei Gao , Xiao-Yuan Jing

Generative methods now produce outputs nearly indistinguishable from real data but often fail to fully capture the data distribution. Unlike quality issues, diversity limitations in generative models are hard to detect visually, requiring…

计算机视觉与模式识别 · 计算机科学 2024-12-13 Mischa Dombrowski , Weitong Zhang , Sarah Cechnicka , Hadrien Reynaud , Bernhard Kainz

Quality feature representation is key to instance image retrieval. To attain it, existing methods usually resort to a deep model pre-trained on benchmark datasets or even fine-tune the model with a task-dependent labelled auxiliary dataset.…

计算机视觉与模式识别 · 计算机科学 2022-08-15 Zhongyan Zhang , Lei Wang , Yang Wang , Luping Zhou , Jianjia Zhang , Peng Wang , Fang Chen