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The inversion of cosh-Hilbert transform (CHT) is one of the most crucial steps for single-photon emission computed tomography with uniform attenuation from truncated projection data. Although the uniqueness of the CHT inversion had been…

数值分析 · 数学 2013-02-27 Shousheng Luo , Jiansheng Yang , Tie Zhou

In this paper, we present new image segmentation methods based on hidden Markov random fields (HMRFs) and cuckoo search (CS) variants. HMRFs model the segmentation problem as a minimization of an energy function. CS algorithm is one of the…

计算机视觉与模式识别 · 计算机科学 2021-03-16 EL-Hachemi Guerrout , Ramdane Mahiou , Randa Boukabene , Assia Ouali

Transformers are very powerful tools for a variety of tasks across domains, from text generation to image captioning. However, transformers require substantial amounts of training data, which is often a challenge in biomedical settings,…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Andrew Kean Gao

Microarray is considered an important instrument and powerful new technology for large-scale gene sequence and gene expression analysis. One of the major challenges of this technique is the image processing phase. The accuracy of this phase…

计算机视觉与模式识别 · 计算机科学 2016-07-05 Naima Kaabouch , Hamid Shahbazkia

Globally, Coronary Heart Disease (CHD) is one of the main causes of death. Early detection of CHD can improve patient outcomes and reduce mortality rates. We propose a novel framework for predicting the presence of CHD using a combination…

计算机视觉与模式识别 · 计算机科学 2023-05-02 R. Selvaraj , T. Satheesh , V. Suresh , V. Yathavaraj

This paper presents a novel approach to increase the performance bounds of image steganography under the criteria of minimizing distortion. The proposed approach utilizes a steganalysis convolutional neural network (CNN) framework to…

多媒体 · 计算机科学 2017-11-08 Mehdi Sharifzadeh , Chirag Agarwal , Mohammed Aloraini , Dan Schonfeld

Hough transform (HT) has been the most common method for circle detection exhibiting robustness but adversely demanding a considerable computational load and large storage. Alternative approaches include heuristic methods that employ…

计算机视觉与模式识别 · 计算机科学 2014-05-23 Erik Cuevas , Fernando Wario , Valentin Osuna , Daniel Zaldivar , Marco Perez

We consider the problem of scale detection in images where a region of interest is present together with a measurement tool (e.g. a ruler). For the segmentation part, we focus on the graph based method by Flenner and Bertozzi which…

偏微分方程分析 · 数学 2016-09-26 Luca Calatroni , Yves van Gennip , Carola-Bibiane Schönlieb , Hannah Rowland , Arjuna Flenner

While remarkable advances have been made in Computed Tomography (CT), most of the existing efforts focus on imaging enhancement while reducing radiation dose. How to harmonize CT image data captured using different scanners is vital in…

图像与视频处理 · 电气工程与系统科学 2021-10-20 Md Selim , Jie Zhang , Baowei Fei , Guo-Qiang Zhang , Gary Yeeming Ge , Jin Chen

In this paper we introduce a novel neural network architecture based on Fast Hough Transform layer. The layer of this type allows our neural network to accumulate features from linear areas across the entire image instead of local areas. We…

计算机视觉与模式识别 · 计算机科学 2020-07-09 Alexander Sheshkus , Anastasia Ingacheva , Vladimir Arlazarov , Dmitry Nikolaev

The accurate segmentation of Coronary Computed Tomography Angiography (CCTA) images holds substantial clinical value for the early detection and treatment of Coronary Heart Disease (CHD). The Transformer, utilizing a self-attention…

图像与视频处理 · 电气工程与系统科学 2023-10-10 Chenchu Xu , Meng Li , Xue Wu

Medical image segmentation plays a crucial role in various healthcare applications, enabling accurate diagnosis, treatment planning, and disease monitoring. Traditionally, convolutional neural networks (CNNs) dominated this domain,…

Image correction aims to adjust an input image into a visually pleasing one. Existing approaches are proposed mainly from the perspective of image pixel manipulation. They are not effective to recover the details in the under/over exposed…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Xin Yang , Ke Xu , Yibing Song , Qiang Zhang , Xiaopeng Wei , Rynson Lau

Despite advances in feature representation, leveraging geometric relations is crucial for establishing reliable visual correspondences under large variations of images. In this work we introduce a Hough transform perspective on…

计算机视觉与模式识别 · 计算机科学 2021-09-14 Juhong Min , Seungwook Kim , Minsu Cho

Medical image segmentation has made significant progress in recent years. Deep learning-based methods are recognized as data-hungry techniques, requiring large amounts of data with manual annotations. However, manual annotation is expensive…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Yi Lin , Yufan Chen , Kwang-Ting Cheng , Hao Chen

This work explores a hybrid approach to segmentation as an alternative to a purely data-driven approach. We introduce an end-to-end U-Net based network called DU-Net, which uses additional frequency preserving features, namely the…

图像与视频处理 · 电气工程与系统科学 2020-04-16 Alakh Desai , Ruchi Chauhan , Jayanthi Sivaswamy

This paper studies the problem of detecting and segmenting acute intracranial hemorrhage on head computed tomography (CT) scans. We propose to solve both tasks as a semantic segmentation problem using a patch-based fully convolutional…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Weicheng Kuo , Christian Häne , Esther Yuh , Pratik Mukherjee , Jitendra Malik

Chromosome analysis and identification from metaphase images is a critical part of cytogenetics based medical diagnosis. It is mainly used for identifying constitutional, prenatal and acquired abnormalities in the diagnosis of genetic…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Amritha S Pallavoor , Prajwal A , Sundareshan TS , Sreekanth K Pallavoor

Controlling crystalline material defects is crucial, as they affect properties of the material that may be detrimental or beneficial for the final performance of a device. Defect analysis on the sub-nanometer scale is enabled by…

材料科学 · 物理学 2021-06-03 Nik Dennler , Antonio Foncubierta-Rodriguez , Titus Neupert , Marilyne Sousa

Hashing has played a pivotal role in large-scale image retrieval. With the development of Convolutional Neural Network (CNN), hashing learning has shown great promise. But existing methods are mostly tuned for classification, which are not…

计算机视觉与模式识别 · 计算机科学 2017-03-01 Shanshan Huang , Yichao Xiong , Ya Zhang , Jia Wang