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相关论文: Few-Shot Anomaly Detection for Polyp Frames from C…

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Anomaly detection is a crucial task in various domains. Most of the existing methods assume the normal sample data clusters around a single central prototype while the real data may consist of multiple categories or subgroups. In addition,…

机器学习 · 统计学 2024-12-03 Zhijin Dong , Hongzhi Liu , Boyuan Ren , Weimin Xiong , Zhonghai Wu

Colonoscopy is a common and practical method for detecting and treating polyps. Segmenting polyps from colonoscopy image is useful for diagnosis and surgery progress. Nevertheless, achieving excellent segmentation performance is still…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Quang Vinh Nguyen , Van Thong Huynh , Soo-Hyung Kim

Several anomaly detection and classification methods rely on large amounts of non-anomalous or "normal" samples under the assump- tion that anomalous data is typically harder to acquire. This hypothesis becomes questionable in Few-Shot…

机器学习 · 计算机科学 2025-08-01 Aymane Abdali , Bartosz Boguslawski , Lucas Drumetz , Vincent Gripon

Colonoscopy is still the main method of detection and segmentation of colonic polyps, and recent advancements in deep learning networks such as U-Net, ResUNet, Swin-UNet, and PraNet have made outstanding performance in polyp segmentation.…

图像与视频处理 · 电气工程与系统科学 2025-08-14 Madan Baduwal

In recent years, anomaly detection has become an essential field in medical image analysis. Most current anomaly detection methods for medical images are based on image reconstruction. In this work, we propose a novel anomaly detection…

计算机视觉与模式识别 · 计算机科学 2023-01-20 Florentin Bieder , Julia Wolleb , Robin Sandkühler , Philippe C. Cattin

Anomaly detection is the process of identifying atypical data samples that significantly deviate from the majority of the dataset. In the realm of clinical screening and diagnosis, detecting abnormalities in medical images holds great…

计算机视觉与模式识别 · 计算机科学 2023-10-11 Xianyao Hu , Congming Jin

Endoscopic diagnosis is an important means for gastric polyp detection. In this paper, a panoramic image of gastroscopy is developed, which can display the inner surface of the stomach intuitively and comprehensively. Moreover, the proposed…

图像与视频处理 · 电气工程与系统科学 2019-10-22 Chenfei Shi , Yan Xue , Chuan Jiang , Hui Tian , Bei Liu

We propose a scalable and data-driven approach to learn shape distributions from large databases of healthy organs. To do so, volumetric segmentation masks are embedded into a common probabilistic shape space that is learned with a…

计算机视觉与模式识别 · 计算机科学 2022-10-24 Rebeca Vétil , Clément Abi Nader , Alexandre Bône , Marie-Pierre Vullierme , Marc-Michel Roheé , Pietro Gori , Isabelle Bloch

Anomaly detection identifies departures from expected behavior in safety-critical settings. When target-domain normal data are unavailable, zero-shot anomaly detection (ZSAD) leverages vision-language models (VLMs). However, CLIP's coarse…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Alireza Salehi , Ehsan Karami , Sepehr Noey , Sahand Noey , Makoto Yamada , Reshad Hosseini , Mohammad Sabokrou

Image modality recognition is essential for efficient imaging workflows in current clinical environments, where multiple imaging modalities are used to better comprehend complex diseases. Emerging biomarkers from novel, rare modalities are…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Santi Puch , Irina Sánchez , Matt Rowe

Anomaly detection has many important applications, such as monitoring industrial equipment. Despite recent advances in anomaly detection with deep-learning methods, it is unclear how existing solutions would perform under…

声音 · 计算机科学 2022-04-06 Bingqing Chen , Luca Bondi , Samarjit Das

Polyps are early cancer indicators, so assessing occurrences of polyps and their removal is critical. They are observed through a colonoscopy screening procedure that generates a stream of video frames. Segmenting polyps in their natural…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Ziang Xu , Jens Rittscher , Sharib Ali

Polyp detectors trained on clean datasets often underperform in real-world endoscopy, where illumination changes, motion blur, and occlusions degrade image quality. Existing approaches struggle with the domain gap between controlled…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Shengkai Xu , Hsiang Lun Kao , Tianxiang Xu , Honghui Zhang , Junqiao Wang , Runmeng Ding , Guanyu Liu , Tianyu Shi , Zhenyu Yu , Guofeng Pan , Ziqian Bi , Yuqi Ouyang

We present a novel method for image anomaly detection, where algorithms that use samples drawn from some distribution of "normal" data, aim to detect out-of-distribution (abnormal) samples. Our approach includes a combination of encoder and…

图像与视频处理 · 电气工程与系统科学 2020-03-02 Nina Tuluptceva , Bart Bakker , Irina Fedulova , Anton Konushin

Background: Colonoscopy remains the gold-standard screening for colorectal cancer. However, significant miss rates for polyps have been reported, particularly when there are multiple small adenomas. This presents an opportunity to leverage…

图像与视频处理 · 电气工程与系统科学 2021-06-23 Michael Yeung , Evis Sala , Carola-Bibiane Schönlieb , Leonardo Rundo

Various technologies, including computer vision models, are employed for the automatic monitoring of manual assembly processes in production. These models detect and classify events such as the presence of components in an assembly area or…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Anton Sergeev , Victor Minchenkov , Aleksei Soldatov , Vasiliy Kakurin , Yaroslav Mazikov

Colorectal polyps are generally benign alterations that, if not identified promptly and managed successfully, can progress to cancer and cause affectations on the colon mucosa, known as adenocarcinoma. Today advances in Deep Learning have…

图像与视频处理 · 电气工程与系统科学 2025-01-22 Daniela L. Ramos , Hector J. Hortua

Colonoscopy is the gold standard for examination and detection of colorectal polyps. Localization and delineation of polyps can play a vital role in treatment (e.g., surgical planning) and prognostic decision making. Polyp segmentation can…

图像与视频处理 · 电气工程与系统科学 2021-01-01 Nikhil Kumar Tomar , Debesh Jha , Sharib Ali , Håvard D. Johansen , Dag Johansen , Michael A. Riegler , Pål Halvorsen

This paper explores the problem of Generalist Anomaly Detection (GAD), aiming to train one single detection model that can generalize to detect anomalies in diverse datasets from different application domains without any further training on…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Jiawen Zhu , Guansong Pang

Anomaly detection in medical imaging is to distinguish the relevant biomarkers of diseases from those of normal tissues. Deep supervised learning methods have shown potentials in various detection tasks, but its performances would be…

图像与视频处理 · 电气工程与系统科学 2021-12-01 Byungjai Kim , Kinam Kwon , Changheun Oh , Hyunwook Park