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The number of published PDF documents has increased exponentially in recent decades. There is a growing need to make their rich content discoverable to information retrieval tools. In this paper, we present a novel approach to document…

Daily engagement in life experiences is increasingly interwoven with mobile device use. Screen capture at the scale of seconds is being used in behavioral studies and to implement "just-in-time" health interventions. The increasing…

Structured information extraction from long, multilingual scanned financial documents is a core requirement in industrial KYC and compliance workflows. These documents are typically non machine readable, noisy, and visually heterogeneous.…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Yuxuan Han , Yuanxing Zhang , Yushuo Wang , Yichao Jin , Kenneth Zhu Ke , Jingyuan Zhao

Given the ubiquity of handwritten documents in human transactions, Optical Character Recognition (OCR) of documents have invaluable practical worth. Optical character recognition is a science that enables to translate various types of…

计算机视觉与模式识别 · 计算机科学 2020-01-03 Jamshed Memon , Maira Sami , Rizwan Ahmed Khan

The rise of imaging techniques such as optical coherence tomography (OCT) and advances in deep learning (DL) have enabled clinicians and researchers to streamline retinal disease staging. A popular DL approach is self-supervised learning…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Ronald Fecso , José Morano , Ursula Schmidt-Erfurth , Hrvoje Bogunović

Optical coherence tomography (OCT) helps ophthalmologists assess macular edema, accumulation of fluids, and lesions at microscopic resolution. Quantification of retinal fluids is necessary for OCT-guided treatment management, which relies…

图像与视频处理 · 电气工程与系统科学 2022-12-15 Reza Rasti , Armin Biglari , Mohammad Rezapourian , Ziyun Yang , Sina Farsiu

Optic disc (OD) and optic cup (OC) are regions of prominent clinical interest in a retinal fundus image. They are the primary indicators of a glaucomatous condition. With the advent and success of deep learning for healthcare research,…

图像与视频处理 · 电气工程与系统科学 2020-12-15 Aniketh Manjunath , Subramanya Jois , Chandra Sekhar Seelamantula

Information Extraction from visually rich documents is a challenging task that has gained a lot of attention in recent years due to its importance in several document-control based applications and its widespread commercial value. The…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Mohamed Dhouib , Ghassen Bettaieb , Aymen Shabou

A prospective study was performed on neurosurgical samples from 18 patients to evaluate the use of Full-Field Optical Coherence Tomography (FF-OCT) in brain tumor diagnosis. FF-OCT captures en face slices of tissue samples at 1\mum…

Optical Coherence Tomography (OCT) is an emerging medical imaging modality for luminal organ diagnosis. The non-constant rotation speed of optical components in the OCT catheter tip causes rotational distortion in OCT volumetric scanning.…

Retinal blood vessels structure contains information about diseases like obesity, diabetes, hypertension and glaucoma. This information is very useful in identification and treatment of these fatal diseases. To obtain this information,…

图像与视频处理 · 电气工程与系统科学 2020-12-08 Sushil Kumar Saroj , Vikas Ratna , Rakesh Kumar , Nagendra Pratap Singh

Optical character recognition (OCR), a process that converts printed or handwritten text into machine-readable form, is widely used in assistive technology for people with blindness and low vision. Yet most evaluations rely on static…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Junchi Feng , Nikhil Ballem , Mahya Beheshti , Giles Hamilton-Fletcher , Todd Hudson , Maurizio Porfiri , William H. Seiple , John-Ross Rizzo

Optical coherence tomography (OCT) is a micrometer-scale, volumetric imaging modality that has become a clinical standard in ophthalmology. OCT instruments image by raster-scanning a focused light spot across the retina, acquiring…

图像与视频处理 · 电气工程与系统科学 2022-09-16 Stefan Ploner , Siyu Chen , Jungeun Won , Lennart Husvogt , Katharina Breininger , Julia Schottenhamml , James Fujimoto , Andreas Maier

Purpose: To develop an open-source, fully-automatic deep learning algorithm, DeepGPET, for choroid region segmentation in optical coherence tomography (OCT) data. Methods: We used a dataset of 715 OCT B-scans (82 subjects, 115 eyes) from 3…

Optical coherence tomography angiography (OCTA) is a novel non-invasive imaging modality for the visualisation of microvasculature in vivo that has encountered broad adoption in retinal research. OCTA potential in the assessment of…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Ylenia Giarratano , Eleonora Bianchi , Calum Gray , Andrew Morris , Tom MacGillivray , Baljean Dhillon , Miguel O. Bernabeu

Commercial OCR packages work best with high-quality scanned images. They often produce poor results when the image is degraded, either because the original itself was poor quality, or because of excessive photocopying. The ability to…

数字图书馆 · 计算机科学 2007-05-23 Roger T. Hartley , Kathleen Crumpton

Optical coherence tomography (OCT) is a popular modality in ophthalmology and is also used intravascularly. Our interest in this work is OCT in the context of airway abnormalities in infants and children where the high resolution of OCT and…

图像与视频处理 · 电气工程与系统科学 2024-03-19 Yining Jiao , Amy Oldenburg , Yinghan Xu , Srikamal Soundararajan , Carlton Zdanski , Julia Kimbell , Marc Niethammer

Contrary to popular belief, Optical Character Recognition (OCR) remains a challenging problem when text occurs in unconstrained environments, like natural scenes, due to geometrical distortions, complex backgrounds, and diverse fonts. In…

计算机视觉与模式识别 · 计算机科学 2019-06-06 Marcin Namysl , Iuliu Konya

Optical Coherence Tomography (OCT) is one of the most important retinal imaging technique. However, involuntary motion artifacts still pose a major challenge in OCT imaging that compromises the quality of downstream analysis, such as…

图像与视频处理 · 电气工程与系统科学 2023-05-31 Yiqian Wang , Alexandra Warter , Melina Cavichini , Varsha Alex , Dirk-Uwe G. Bartsch , William R. Freeman , Truong Q. Nguyen , Cheolhong An

Accurate isolation and quantification of intraocular dimensions in the anterior segment (AS) of the eye using optical coherence tomography (OCT) images is important in the diagnosis and treatment of many eye diseases, especially angle…

图像与视频处理 · 电气工程与系统科学 2019-09-04 Tan Hung Pham , Sripad Krishna Devalla , Aloysius Ang , Soh Zhi Da , Alexandre H. Thiery , Craig Boote , Ching-Yu Cheng , Victor Koh , Michael J. A. Girard