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Attenuation coefficient (AC) is a fundamental measure of tissue acoustical properties, which can be used in medical diagnostics. In this work, we investigate the feasibility of using convolutional neural networks (CNNs) to directly estimate…

医学物理 · 物理学 2022-05-20 Piotr Jarosik , Michal Byra , Marcin Lewandowski , Ziemowit Klimonda

Early detection of pulmonary cancer is the most promising way to enhance a patient's chance for survival. Accurate pulmonary nodule detection in computed tomography (CT) images is a crucial step in diagnosing pulmonary cancer. In this…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Jia Ding , Aoxue Li , Zhiqiang Hu , Liwei Wang

We propose a new post-processing technique for the detection of faint companions from a sequence of adaptive optics corrected short exposures. The algorithm exploits the difference in shape between the on-axis and off-axis irradiance…

天体物理学 · 物理学 2009-11-13 Szymon Gladysz , Julian C. Christou

This paper presents a comprehensive review of recent advances in deploying convolutional neural networks (CNNs) for object detection, classification, and tracking on Field Programmable Gate Arrays (FPGAs). With the increasing demand for…

硬件体系结构 · 计算机科学 2025-09-05 Safa Mohammed Sali , Mahmoud Meribout , Ashiyana Abdul Majeed

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

Ptychography is a powerful imaging technique that is used in a variety of fields, including materials science, biology, and nanotechnology. However, the accuracy of the reconstructed ptychography image is highly dependent on the accuracy of…

应用物理 · 物理学 2024-06-03 Ming Du , Tao Zhou , Junjing Deng , Daniel J. Ching , Steven Henke , Mathew J. Cherukara

Current object detection approaches predict bounding boxes, but these provide little instance-specific information beyond location, scale and aspect ratio. In this work, we propose to directly regress to objects' shapes in addition to their…

计算机视觉与模式识别 · 计算机科学 2017-07-06 Saumya Jetley , Michael Sapienza , Stuart Golodetz , Philip H. S. Torr

We propose a novel video object segmentation algorithm based on pixel-level matching using Convolutional Neural Networks (CNN). Our network aims to distinguish the target area from the background on the basis of the pixel-level similarity…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Jae Shin Yoon , Francois Rameau , Junsik Kim , Seokju Lee , Seunghak Shin , In So Kweon

Despite the effectiveness of Convolutional Neural Networks (CNNs) for image classification, our understanding of the relationship between shape of convolution kernels and learned representations is limited. In this work, we explore and…

计算机视觉与模式识别 · 计算机科学 2016-11-30 Zhun Sun , Mete Ozay , Takayuki Okatani

X-ray phase-contrast imaging offers enhanced sensitivity for weakly-attenuating materials, such as breast and brain tissue, but has yet to be widely implemented clinically due to high coherence requirements and expensive x-ray optics.…

医学物理 · 物理学 2023-05-04 Serena Qinyun Z. Shi , Nadav Shapira , Peter B. Noël , Sebastian Meyer

We present a new algorithm designed to improve the signal to noise ratio (SNR) of point and extended source detections in direct imaging data. The novel part of our method is that it finds the linear combination of the science images that…

Deepfake detection aims to contrast the spread of deep-generated media that undermines trust in online content. While existing methods focus on large and complex models, the need for real-time detection demands greater efficiency. With this…

计算机视觉与模式识别 · 计算机科学 2024-07-02 Lanzino Romeo , Fontana Federico , Diko Anxhelo , Marini Marco Raoul , Cinque Luigi

Spectrum sensing enables cognitive radio systems to detect unused portions of the radio spectrum and then use them while avoiding interferences to the primary users. Energy detection is one of the most used techniques for spectrum sensing…

信号处理 · 电气工程与系统科学 2018-03-15 Youness Arjoune

We address the problem of contour detection via per-pixel classifications of edge point. To facilitate the process, the proposed approach leverages with DenseNet, an efficient implementation of multiscale convolutional neural networks…

计算机视觉与模式识别 · 计算机科学 2015-04-09 Jyh-Jing Hwang , Tyng-Luh Liu

This study examines pitch contours as a unifying semantic construct prevalent across various audio domains including music, speech, bioacoustics, and everyday sounds. Analyzing pitch contours offers insights into the universal role of pitch…

音频与语音处理 · 电气工程与系统科学 2025-03-26 Jakob Abeßer , Simon Schwär , Meinard Müller

Pitch estimation is to estimate the fundamental frequency and the midi number and plays a critical role in music signal analysis and vocal signal processing. In this work, we proposed a new architecture based on a learning-based enhancement…

声音 · 计算机科学 2023-05-09 Yu Cheng Hung , Ping Hung Chen , Jian Jiun Ding

With the recent growth of remote work, online meetings often encounter challenging audio contexts such as background noise, music, and echo. Accurate real-time detection of music events can help to improve the user experience. In this…

音频与语音处理 · 电气工程与系统科学 2022-04-18 Chandan K. A. Reddy , Vishak Gopa , Harishchandra Dubey , Sergiy Matusevych , Ross Cutler , Robert Aichner

Modern mobile neural networks with a reduced number of weights and parameters do a good job with image classification tasks, but even they may be too complex to be implemented in an FPGA for video processing tasks. The article proposes…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Roman Solovyev , Alexander Kustov , Dmitry Telpukhov , Vladimir Rukhlov , Alexandr Kalinin

Automatic detection of shadow regions in an image is a difficult task due to the lack of prior information about the illumination source and the dynamic of the scene objects. To address this problem, in this paper, a deep-learning based…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Sorour Mohajerani , Parvaneh Saeedi

In this paper we study the application of convolutional neural networks for jointly detecting objects depicted in still images and estimating their 3D pose. We identify different feature representations of oriented objects, and energies…

计算机视觉与模式识别 · 计算机科学 2015-03-03 Francisco Massa , Mathieu Aubry , Renaud Marlet