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Pixel detectors typically display pixel-to-pixel gain variation of a few percent which result in reduced spectroscopic performance. We have developed a calibration method which relies on cross-correlating histograms of many pixel pairs and…

仪器与探测器 · 物理学 2019-07-17 G. Blaj , G. Haller , C. J. Kenney

High resolution transcranial ultrasound imaging in humans has been a persistent challenge for ultrasound due to the imaging degradation effects from aberration and reverberation. These mechanisms depend strongly on skull morphology and they…

医学物理 · 物理学 2018-11-28 Danai E. Soulioti , David Espíndola , Paul A. Dayton , Gianmarco Pinton

Advances in computing technology have allowed researchers across many fields of endeavor to collect and maintain vast amounts of observational statistical data such as clinical data,biological patient data,data regarding access of web…

计算机视觉与模式识别 · 计算机科学 2014-12-10 Narkhede Sachin , Deven Shah , Vaishali Khairnar , Sujata Kadu

This paper presents an improved edge detection algorithm for facial and remotely sensed images using vector order statistics. The developed algorithm processes colored images directly without been converted to gray scale. A number of the…

计算机视觉与模式识别 · 计算机科学 2015-03-20 B O. Sadiq , S. M. Sani , S. Garba

The detection of clinically significant prostate cancer lesions (csPCa) from biparametric magnetic resonance imaging (bp-MRI) has emerged as a noninvasive imaging technique for improving accurate diagnosis. Nevertheless, the analysis of…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Mateo Ortiz , Juan Olmos , Fabio Martínez

Organ segmentation is a prerequisite for a computer-aided diagnosis (CAD) system to detect pathologies and perform quantitative analysis. For anatomically high-variability abdominal organs such as the pancreas, previous segmentation works…

计算机视觉与模式识别 · 计算机科学 2014-08-01 Amal Farag , Le Lu , Evrim Turkbey , Jiamin Liu , Ronald M. Summers

Background: In the field of radiology and radiotherapy, accurate delineation of tissues and organs plays a crucial role in both diagnostics and therapeutics. While the gold standard remains expert-driven manual segmentation, many automatic…

定量方法 · 定量生物学 2025-08-14 Szuzina Fazekas , Bettina Katalin Budai , Viktor Bérczi , Pál Maurovich-Horvat , Zsolt Vizi

A universal methodology for coding-decoding the complex amplitude field of an imaged sample in coherent microscopy is presented, where no restrictions on any of the two interferometric beams are required. Thus, the imaging beam can be…

光学 · 物理学 2025-01-20 Ricardo Rubio-Oliver , Javier Garcia , Z. Zalevsky , J. Picazo-Bueno , V. Mico

Diffractive lenses have recently been applied to the domain of multispectral imaging in the X-ray and UV regimes where they can achieve very high resolution as compared to reflective and refractive optics. Conventionally, spectral…

图像与视频处理 · 电气工程与系统科学 2020-05-26 Evan Widloski , Ulas Kamaci , Farzad Kamalabadi

Detecting 3D landmarks on cone-beam computed tomography (CBCT) is crucial to assessing and quantifying the anatomical abnormalities in 3D cephalometric analysis. However, the current methods are time-consuming and suffer from large biases…

计算机视觉与模式识别 · 计算机科学 2022-02-21 Runnan Chen , Yuexin Ma , Nenglun Chen , Lingjie Liu , Zhiming Cui , Yanhong Lin , Wenping Wang

Loop closing is a crucial component in SLAM that helps eliminate accumulated errors through two main steps: loop detection and loop pose correction. The first step determines whether loop closing should be performed, while the second…

机器人学 · 计算机科学 2024-11-12 Neng Wang , Xieyuanli Chen , Chenghao Shi , Zhiqiang Zheng , Hongshan Yu , Huimin Lu

It is at times important to detect human presence automatically in secure environments. This needs a shape recognition algorithm that is robust, fast and has low error rates. The algorithm needs to process camera images quickly to detect…

计算机视觉与模式识别 · 计算机科学 2015-06-30 Dhriti Sengupta , Merina Kundu , Jayati Ghosh Dastidar

Balanced steady-state free precession (bSSFP) imaging enables high scan efficiency in MRI, but differs from conventional sequences in terms of elevated sensitivity to main field inhomogeneity and nonstandard T2/T1-weighted tissue contrast.…

图像与视频处理 · 电气工程与系统科学 2021-08-12 Kübra Keskin , Uğur Yılmaz , Tolga Çukur

Fetal brain MRI is useful for diagnosing brain abnormalities but is challenged by fetal motion. The current protocol for T2-weighted fetal brain MRI is not robust to motion so image volumes are degraded by inter- and intra- slice motion…

图像与视频处理 · 电气工程与系统科学 2020-06-24 Junshen Xu , Sayeri Lala , Borjan Gagoski , Esra Abaci Turk , P. Ellen Grant , Polina Golland , Elfar Adalsteinsson

Segmentation is crucial for brain gliomas as it delineates the glioma s extent and location, aiding in precise treatment planning and monitoring, thus improving patient outcomes. Accurate segmentation ensures proper identification of the…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Kiranmayee Janardhan , Vinay Martin DSa Prabhu , T. Christy Bobby

Cervical cancer is a very common and fatal type of cancer in women. Cytopathology images are often used to screen for this cancer. Given that there is a possibility that many errors can occur during manual screening, a computer-aided…

计算机视觉与模式识别 · 计算机科学 2021-11-09 Wanli Liu , Chen Li , Md Mamunur Rahamana , Tao Jiang , Hongzan Sun , Xiangchen Wu , Weiming Hu , Haoyuan Chen , Changhao Sun , Yudong Yao , Marcin Grzegorzek

This paper proposes to use cepstrum for artifact detection, recognition and removal in prefrontal EEG. This work focuses on the artifact caused by eye movement. A database containing artifact-free EEG and eye movement contaminated EEG from…

信号处理 · 电气工程与系统科学 2024-04-15 Siqi Han , Chao Zhang , Jiaxin Lei , Qingquan Han , Yuhui Du , Anhe Wang , Shuo Bai , Milin Zhang

We propose a novel method for semantic segmentation, the task of labeling each pixel in an image with a semantic class. Our method combines the advantages of the two main competing paradigms. Methods based on region classification offer…

计算机视觉与模式识别 · 计算机科学 2016-07-27 Holger Caesar , Jasper Uijlings , Vittorio Ferrari

Segmentation is a fundamental task in medical image analysis. The clinical interest is often to measure the volume of a structure. To evaluate and compare segmentation methods, the similarity between a segmentation and a predefined ground…

图像与视频处理 · 电气工程与系统科学 2020-10-09 Jeroen Bertels , David Robben , Dirk Vandermeulen , Paul Suetens

Images with abnormal brain anatomy produce problems for automatic segmentation techniques, and as a result poor ROI detection affects both quantitative measurements and visual assessment of perfusion data. This paper presents a new approach…

图像与视频处理 · 电气工程与系统科学 2019-02-19 Svitlana M Alkhimova