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相关论文: Texture Generation for Photoacoustic Elastography

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Image steganography is art of hiding information onto the cover image. In this proposal a transformed domain based gray scale image authentication/data hiding technique using Z transform (ZT) termed as FDSZT, has been proposed. ZTransform…

密码学与安全 · 计算机科学 2012-02-21 J. K. Mandal

Subwavelength imaging of elastic/acoustic waves using phononic crystals (PCs) is limited to a narrow frequency range via the two existing mechanisms that utilize either the intense Bragg scattering in the first phonon band or negative…

应用物理 · 物理学 2023-03-13 Hrishikesh Danawe , Serife Tol

In the approaches to elastography, two mathematical operations have been frequently applied to improve the final estimate of shear wave speed and shear modulus of tissues. The vector curl operator can separate out the transverse component…

医学物理 · 物理学 2023-05-16 Kevin J. Parker

Photoacoustic image reconstruction often assumes that the restriction of the acoustic pressure on the detection surface is given. However, commonly used detectors often have a certain directivity and frequency dependence, in which case the…

数值分析 · 数学 2020-01-08 Gerhard Zangerl , Sunghwan Moon , Markus Haltmeier

Spatial transcriptomics (ST) enables the visualization of gene expression within the context of tissue morphology. This emerging discipline has the potential to serve as a foundation for developing tools to design precision medicines.…

图像与视频处理 · 电气工程与系统科学 2024-11-12 Shivam Kumar , Samrat Chatterjee

The quest for wave channeling and manipulation has driven a strong research effort on topological and architected materials, capable of propagating localized electromagnetical or mechanical signals. With reference to an elastic structural…

经典物理 · 物理学 2019-02-20 G. Bordiga , L. Cabras , A. Piccolroaz , D. Bigoni

Spectral and grating-based differential phase-contrast X-ray imaging are two emerging technologies that offer additional information compared with conventional attenuation-based X-ray imaging. In the case of spectral imaging,…

医学物理 · 物理学 2020-01-31 Korbinian Mechlem , Thorsten Sellerer , Manuel Viermetz , Julia Herzen , Franz Pfeiffer

Photoacoustic imaging has emerged in the past decades. Compared with the traditional medical imaging mode, it has better imaging performance and has great development potential in the field of biological imaging. In traditional…

医学物理 · 物理学 2020-09-03 Xianlin Song , Jianshuang Wei , Jianmin Xiong , Lingfang Song

Neural style transfer (NST) has evolved significantly in recent years. Yet, despite its rapid progress and advancement, existing NST methods either struggle to transfer aesthetic information from a style effectively or suffer from high…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Joonwoo Kwon , Sooyoung Kim , Yuewei Lin , Shinjae Yoo , Jiook Cha

Skeletal muscles are organized into distinct layers and exhibit anisotropic characteristics across various scales. Assessing the arrangement of skeletal muscles may provide valuable biomarkers for diagnosing muscle related pathologies and…

Optoacoustic tomography image reconstruction has been a problem of interest in recent years. By exploiting the exceptional generative power of the recently proposed diffusion models we consider a scheme which is based on a conditional…

图像与视频处理 · 电气工程与系统科学 2024-11-26 Martin G. Gonzalez , Matias Vera , Leonardo Rey Vega

Several centimeters below the skin lie multiple biomarkers, such as glucose, oxygenation, and blood flow. Monitoring these biomarkers regularly and in a non-invasive manner would enable early insight into metabolic status and vascular…

医学物理 · 物理学 2025-10-30 Talia Xu , Caitlin Smith , Charles Lo , Jami Shepherd , Gijs van Soest , Marco Zuniga

The useful dynamic range of an image in the diffraction limited regime is usually limited by speckles caused by residual phase errors in the optical system forming the image. The technique of speckle decorrelation involves introducing many…

天体物理学 · 物理学 2007-05-23 Anand Sivaramakrishnan , James P. Lloyd , Philip E. Hodge , Bruce A. Macintosh

Photoelastic techniques are used to make both qualitative and quantitative measurements of the forces within idealized granular materials. The method is based on placing a birefringent granular material between a pair of polarizing filters,…

软凝聚态物质 · 物理学 2017-06-07 Karen E. Daniels , Jonathan E. Kollmer , James G. Puckett

Image generation technology can synthesize condition-specific images to supplement real-world industrial anomaly data and enhance anomaly detection model performance. Existing generation techniques rarely account for the pose and…

计算机视觉与模式识别 · 计算机科学 2026-04-16 Zebei Tong , Hongchang Chen , Yujie Lei , Gang Chen , Yushi Liu , Zhi Zheng , Hao Chen , Jieming Zhang , Ying Li , Dongpu Cao

Photoacoustic tomography (PAT) is a non-invasive imaging modality that requires recovering the initial data of the wave equation from certain measurements of the solution outside the object. In the standard PAT measurement setup, the used…

偏微分方程分析 · 数学 2021-12-07 Linh V. Nguyen , Markus Haltmeier , Richard Kowar , Ngoc Do

This article introduces the Stochastic Texture Difference method for analyzing data at prescribed spatial and value scales. This method relies on constrained random walks around each pixel, describing how nearby image values typically…

计算机视觉与模式识别 · 计算机科学 2015-10-06 Nicolas Brodu , Hussein Yahia

Photoacoustic computed tomography (PACT) is an emerging computed imaging modality that exploits optical contrast and ultrasonic detection principles to form images of the absorbed optical energy density within tissue. When the imaging…

医学物理 · 物理学 2016-11-15 Qiwei Sheng , Kun Wang , Thomas P. Matthews , Jun Xia , Liren Zhu , Lihong V. Wang , Mark A. Anastasio

It has been advocated that medical imaging systems and reconstruction algorithms should be assessed and optimized by use of objective measures of image quality that quantify the performance of an observer at specific diagnostic tasks. One…

图像与视频处理 · 电气工程与系统科学 2020-06-02 Weimin Zhou , Sayantan Bhadra , Frank J. Brooks , Hua Li , Mark A. Anastasio

Purpose: Photoacoustic tomography (PAT) is a novel imaging technique that can spatially resolve both morphological and functional tissue properties, such as the vessel topology and tissue oxygenation. While this capacity makes PAT a…

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