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Calibration is a common practice in image steganalysis for extracting prominent features. Based on the idea of reembedding, a new set of calibrated features for audio steganalysis applications are proposed. These features are extracted from…

Multimedia · Computer Science 2018-08-31 Hamzeh Ghasemzadeh , Mohammad H. Kayvanrad

Accurate scale estimation of a target is a challenging research problem in visual object tracking. Most state-of-the-art methods employ an exhaustive scale search to estimate the target size. The exhaustive search strategy is…

Computer Vision and Pattern Recognition · Computer Science 2016-09-21 Martin Danelljan , Gustav Häger , Fahad Shahbaz Khan , Michael Felsberg

A new algorithm has been developed for delineation of significant points of various electrocardiographic signal (ECG) waves, taking into account information from all available leads and providing similar or higher accuracy in comparison…

The existing traditional edge detection algorithms process a single pixel on an image at a time, thereby calculating a value which shows the edge magnitude of the pixel and the edge orientation. Most of these existing algorithms convert the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-20 B. O Sadiq , S. M Sani , S Garba

Shack-Hartmann wavefront sensing relies on accurate spot centre measurement. Several algorithms were developed with this aim, mostly focused on precision, i.e. minimizing random errors. In the solar and extended scene community, the…

Instrumentation and Methods for Astrophysics · Physics 2018-02-07 Narsireddy Anugu , Paulo J. V. Garcia , Carlos M. Correia

Quantification of cardiac biomarkers from cine cardiovascular magnetic resonance (CMR) data using deep learning (DL) methods offers many advantages, such as increased accuracy and faster analysis. However, only a few studies have focused on…

Quantitative Methods · Quantitative Biology 2024-08-22 Dewmini Hasara Wickremasinghe , Yiyang Xu , Esther Puyol-Antón , Paul Aljabar , Reza Razavi , Andrew P. King

A statistical attention localization (SAL) method is proposed to facilitate the object classification task in this work. SAL consists of three steps: 1) preliminary attention window selection via decision statistics, 2) attention map…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Yijing Yang , Vasileios Magoulianitis , Xinyu Wang , C. -C. Jay Kuo

Reliable 3D-2D alignment between intraoral scan (IOS) models and lateral cephalometric radiographs is critical for orthodontic diagnosis, yet conventional intensity-driven registration methods struggle under real clinical conditions, where…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yiyi Miao , Taoyu Wu , Ji Jiang , Tong Chen , Zhe Tang , Zhengyong Jiang , Angelos Stefanidis , Limin Yu , Jionglong Su

Automatically determining the position of every slice in a CT scan is a basic yet powerful capability allowing fast retrieval of region of interest for visual inspection and automated analysis. Unlike conventional localization approaches…

Image and Video Processing · Electrical Eng. & Systems 2023-12-06 Amit Oved

Craniofacial profile is one of the anatomical causes of obstructive sleep apnea(OSA). By medical research, cephalometry provides information on patients' skeletal structures and soft tissues. In this work, a novel approach to cephalometric…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Hei-Long Chan , Hoi-Man Yuen , Chun-Ting Au , Kate Ching-Ching Chan , Albert Martin Li , Lok-Ming Lui

CNNs, initially inspired by human vision, differ in a key way: they sample uniformly, rather than with highest density in a focal point. For very large images, this makes training untenable, as the memory and computation required for…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Logan Gilmour , Nilanjan Ray

Background: Three-dimensional (3D) cephalometric analysis using computerized tomography data has been rapidly adopted for dysmorphosis and anthropometry. Several different approaches to automatic 3D annotation have been proposed to overcome…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Sung Ho Kang , Kiwan Jeon , Hak-Jin Kim , Jin Keun Seo , Sang-Hwy Lee

Medical image segmentation is particularly critical as a prerequisite for relevant quantitative analysis in the treatment of clinical diseases. For example, in clinical cervical cancer radiotherapy, after acquiring subabdominal MRI images,…

Image and Video Processing · Electrical Eng. & Systems 2023-06-30 Yu Xiao , Xin Yang , Sijuan Huang , Lihua Guo

Dealing with the application of grading colorectal cancer images, this work proposes a 3 step pipeline for prediction of cancer levels from a histopathology image. The overall model performs better compared to other state of the art methods…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Franziska Lippoldt

We present a rectangle-based segmentation algorithm that sets up a graph and performs a graph cut to separate an object from the background. However, graph-based algorithms distribute the graph's nodes uniformly and equidistantly on the…

Computer Vision and Pattern Recognition · Computer Science 2012-03-14 Jan Egger , Tina Kapur , Thomas Dukatz , Malgorzata Kolodziej , Dzenan Zukic , Bernd Freisleben , Christopher Nimsky

Object detection is a fundamental task in computer vision and has many applications in image processing. This paper proposes a new approach for object detection by applying scale invariant feature transform (SIFT) in an automatic…

Computer Vision and Pattern Recognition · Computer Science 2012-10-29 Reza Oji , Farshad Tajeripour

Planning of radiotherapy involves accurate segmentation of a large number of organs at risk, i.e. organs for which irradiation doses should be minimized to avoid important side effects of the therapy. We propose a deep learning method for…

Image and Video Processing · Electrical Eng. & Systems 2019-07-04 Pawel Mlynarski , Hervé Delingette , Hamza Alghamdi , Pierre-Yves Bondiau , Nicholas Ayache

Surgical resection is a common procedure in the treatment of pediatric posterior fossa tumors. However, surgical damage is often unavoidable and its association with postoperative complications is not well understood. A reliable…

Image and Video Processing · Electrical Eng. & Systems 2022-03-07 Silu Zhang , Stuart McAfee , Zoltan Patay , Matthew Scoggins

Colorectal cancer is the third-most common cancer in the Western Hemisphere. The segmentation of colorectal and colorectal cancer by computed tomography is an urgent problem in medicine. Indeed, a system capable of solving this problem will…

Image and Video Processing · Electrical Eng. & Systems 2024-08-01 I. M. Chernenkiy , Y. A. Drach , S. R. Mustakimova , V. V. Kazantseva , N. A. Ushakov , S. K. Efetov , M. V. Feldsherov

This paper introduces a highly efficient algorithm capable of jointly estimating scale and rotation between two images with sub-pixel precision. Image alignment serves as a critical process for spatially registering images captured from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Shinji Yamashita , Yuma Kinoshita , Hitoshi Kiya