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Visual-language models have advanced the development of universal models, yet their application in medical imaging remains constrained by specific functional requirements and the limited data. Current general-purpose models are typically…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Kaini Wang , Ling Yang , Siping Zhou , Guangquan Zhou , Wentao Zhang , Bin Cui , Shuo Li

This paper introduces a new shape-matching methodology, combinative matching, to combine interlocking parts for geometric shape assembly. Previous methods for geometric assembly typically rely on aligning parts by finding identical surfaces…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Nahyuk Lee , Juhong Min , Junhong Lee , Chunghyun Park , Minsu Cho

We theoretically propose a multidimensional high-harmonic echo spectroscopy technique which utilizes strong optical fields to resolve coherent electron dynamics spanning an energy range of multiple electron Volts. Using our recently…

光学 · 物理学 2023-12-01 Shicheng Jiang , Mahesh Gudem , Markus Kowalewski , Konstantin Dorfman

Full-field ultra-high-speed (UHS) x-ray imaging experiments have been well established to characterize various processes and phenomena. However, the potential of UHS experiments through the joint acquisition of x-ray videos with distinct…

图像与视频处理 · 电气工程与系统科学 2024-11-28 Songyuan Tang , Tekin Bicer , Tao Sun , Kamel Fezzaa , Samuel J. Clark

Deep learning-based image fusion approaches have obtained wide attention in recent years, achieving promising performance in terms of visual perception. However, the fusion module in the current deep learning-based methods suffers from two…

计算机视觉与模式识别 · 计算机科学 2022-02-01 Dongyu Rao , Xiao-Jun Wu , Tianyang Xu , Guoyang Chen

The Fourier inversion of phased coherent diffraction patterns offers images without the resolution and depth-of-focus limitations of lens-based tomographic systems. We report on our recent experimental images inverted using recent…

Ptychography is now integrated as a tool in mainstream microscopy allowing quantitative and high-resolution imaging capabilities over a wide field of view. However, its ultimate performance is inevitably limited by the available coherent…

计算物理 · 物理学 2024-06-12 Wenhui Xu , Shoucong Ning , Pengju Sheng , Huixiang Lin , Angus I Kirkland , Yong Peng , Fucai Zhang

Row-column arrays have shown to be able to generate 3-D ultrafast ultrasound images with an order of magnitude less independent electronic channels than classic 2D matrix arrays. Unfortunately row-column array images suffer from major…

信号处理 · 电气工程与系统科学 2021-02-16 Joseph Hansen-Shearer , Marcelo Lerendegui , Matthieu Toulemonde , Meng-Xing Tang

Multi-focus color image fusion refers to integrating multiple partially focused color images to create a single all-in-focus color image. However, existing methods struggle with complex real-world scenarios due to limitations in handling…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Weihua Yang , Yicong Zhou

Vibration-based techniques are among the most common condition monitoring approaches. With the advancement of computers, these approaches have also been improved such that recently, these approaches in conjunction with deep learning methods…

机器学习 · 计算机科学 2021-10-14 Vahid Yaghoubi , Liangliang Cheng , Wim Van Paepegem , Mathias Keremans

The correction of exposure-related issues is a pivotal component in enhancing the quality of images, offering substantial implications for various computer vision tasks. Historically, most methodologies have predominantly utilized spatial…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Xiaoke Shang , Gehui Li , Zhiying Jiang , Shaomin Zhang , Nai Ding , Jinyuan Liu

Photoacoustic tomography is a hybrid imaging technique that combines high optical tissue contrast with high ultrasound resolution. Direct reconstruction methods such as filtered backprojection, time reversal and least squares suffer from…

New feasibity of coherent quantum control of four-wave mixing processes in a resonant Doppler-broadened medium are studied. We propose a technique which enables one to enhance the quantum efficiency of nonlinear optical conversion. At the…

Diffusion Transformers (DiTs) excel in generative tasks but face practical deployment challenges due to high inference costs. Feature caching, which stores and retrieves redundant computations, offers the potential for acceleration.…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Yushi Huang , Zining Wang , Ruihao Gong , Jing Liu , Xinjie Zhang , Jinyang Guo , Xianglong Liu , Jun Zhang

Hyperspectral unmixing aims at identifying a set of elementary spectra and the corresponding mixture coefficients for each pixel of an image. As the elementary spectra correspond to the reflectance spectra of real materials, they are often…

计算机视觉与模式识别 · 计算机科学 2020-02-17 Adrien Lagrange , Mathieu Fauvel , Stéphane May , Nicolas Dobigeon

Several approaches to image stitching use different constraints to estimate the motion model between image pairs. These constraints can be roughly divided into two categories: geometric constraints and photometric constraints. In this…

计算机视觉与模式识别 · 计算机科学 2018-09-19 Kai Chen , Jingmin Tu , Binbin Xiang , Li Li , Jian Yao

In this work, we present EchoGen, a unified framework for layout-to-image generation and image grounding, capable of generating images with accurate layouts and high fidelity to text descriptions (e.g., spatial relationships), while…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Kai Zou , Hongbo Liu , Dian Zheng , Jianxiong Gao , Zhiwei Zhao , Bin Liu

This work presents a unified framework for estimating both sound-field direction and diffuseness using practical microphone arrays with different spatial configurations. Building on covariance-based diffuseness models, we formulate a…

音频与语音处理 · 电气工程与系统科学 2026-03-04 Akira Omoto

Traditional image stitching methods estimate warps from hand-crafted geometric features, whereas recent learning-based solutions leverage semantic features from neural networks instead. These two lines of research have largely diverged…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Yuan Mei , Lang Nie , Kang Liao , Yunqiu Xu , Chunyu Lin , Bin Xiao

High dynamic range (HDR) imaging aims to obtain a high-quality HDR image by fusing information from multiple low dynamic range (LDR) images. Numerous learning-based HDR imaging methods have been proposed to achieve this for static and…

图像与视频处理 · 电气工程与系统科学 2025-05-30 Yu Yuan , Yiheng Chi , Xingguang Zhang , Stanley Chan