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Optical microrobots actuated by optical tweezers (OT) offer great potential for biomedical applications such as cell manipulation and microscale assembly. These tasks demand accurate three-dimensional perception to ensure precise control in…

机器人学 · 计算机科学 2025-09-03 Lan Wei , Lou Genoud , Dandan Zhang

In this work, we have presented a novel method for detection of retinal image features, the optic disc and the fovea, from colour fundus photographs of dilated eyes for Computer-aided Diagnosis(CAD) system. A saliency map based method was…

计算机视觉与模式识别 · 计算机科学 2016-01-26 Mrinal Haloi , Samarendra Dandapat , Rohit Sinha

Automatic evaluation of the retinal fundus image is emerging as one of the most important tools for early detection and treatment of progressive eye diseases like Glaucoma. Glaucoma results to a progressive degeneration of vision and is…

图像与视频处理 · 电气工程与系统科学 2021-12-13 Sneha Dasgupta , Rishav Mukherjee , Kaushik Dutta , Anindya Sen

Optical coherence tomography (OCT) is a non-invasive imaging technique with extensive clinical applications in ophthalmology. OCT enables the visualization of the retinal layers, playing a vital role in the early detection and monitoring of…

Optical coherence tomography (OCT) is a micrometer-scale, volumetric imaging modality that has become a clinical standard in ophthalmology. OCT instruments image by raster-scanning a focused light spot across the retina, acquiring…

图像与视频处理 · 电气工程与系统科学 2022-09-16 Stefan Ploner , Siyu Chen , Jungeun Won , Lennart Husvogt , Katharina Breininger , Julia Schottenhamml , James Fujimoto , Andreas Maier

Segmentation of retinal layers from Optical Coherence Tomography (OCT) volumes is a fundamental problem for any computer aided diagnostic algorithm development. This requires preprocessing steps such as denoising, region of interest…

计算机视觉与模式识别 · 计算机科学 2018-06-26 Karthik Gopinath , Samrudhdhi B Rangrej , Jayanthi Sivaswamy

Ophthalmological imaging utilizes different imaging systems, such as color fundus, infrared, fluorescein angiography, optical coherence tomography (OCT) or OCT angiography. Multiple images with different modalities or acquisition times are…

图像与视频处理 · 电气工程与系统科学 2022-01-10 Aline Sindel , Bettina Hohberger , Sebastian Fassihi Dehcordi , Christian Mardin , Robert Lämmer , Andreas Maier , Vincent Christlein

This paper presents a novel road damage detection algorithm based on unsupervised disparity map segmentation. Firstly, a disparity map is transformed by minimizing an energy function with respect to stereo rig roll angle and road disparity…

计算机视觉与模式识别 · 计算机科学 2019-10-14 Rui Fan , Ming Liu

Robust 3D object detection remains a pivotal concern in the domain of autonomous field robotics. Despite notable enhancements in detection accuracy across standard datasets, real-world urban environments, characterized by their unstructured…

机器人学 · 计算机科学 2024-05-14 Houze Liu , Chongqing Wang , Xiaoan Zhan , Haotian Zheng , Chang Che

With the introduction of spectral-domain optical coherence tomography (OCT), resulting in a significant increase in acquisition speed, the fast and accurate segmentation of 3-D OCT scans has become evermore important. This paper presents a…

计算机视觉与模式识别 · 计算机科学 2014-04-01 Fabian Rathke , Stefan Schmidt , Christoph Schnörr

Major retinal layer segmentation methods from OCT images assume that the retina is flattened in advance, and thus cannot always deal with retinas that have changes in retinal structure due to ophthalmopathy and/or curvature due to myopia.…

图像与视频处理 · 电气工程与系统科学 2024-10-03 Tsubasa Konno , Takahiro Ninomiya , Kanta Miura , Koichi Ito , Noriko Himori , Parmanand Sharma , Toru Nakazawa , Takafumi Aoki

In the analysis of optical coherence tomography angiography (OCTA) images, the operation of segmenting specific targets is necessary. Existing methods typically train on supervised datasets with limited samples (approximately a few…

计算机视觉与模式识别 · 计算机科学 2023-09-22 Chengliang Wang , Xinrun Chen , Haojian Ning , Shiying Li

Visual place recognition methods struggle with occlusions and partial visual overlaps. We propose a novel visual place recognition approach based on overlap prediction, called VOP, shifting from traditional reliance on global image…

计算机视觉与模式识别 · 计算机科学 2024-12-05 Tong Wei , Philipp Lindenberger , Jiri Matas , Daniel Barath

Automatic melanoma segmentation in dermoscopic images is essential in computer-aided diagnosis of skin cancer. Existing methods may suffer from the hole and shrink problems with limited segmentation performance. To tackle these issues, we…

计算机视觉与模式识别 · 计算机科学 2020-01-14 Xiaoqing Guo , Zhen Chen , Yixuan Yuan

Rapid growth in the field of quantitative digital image analysis is paving the way for researchers to make precise measurements about objects in an image. To compute quantities from the image such as the density of compressed materials or…

计算机视觉与模式识别 · 计算机科学 2017-07-31 Marylesa Howard , Margaret C. Hock , B. T. Meehan , Leora Dresselhaus-Cooper

State-of-the-art object detection methods applied to satellite and drone imagery largely fail to identify small and dense objects. One reason is the high variability of content in the overhead imagery due to the terrestrial region captured…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Debojyoti Biswas , Jelena Tešić

Automatic segmentation of retinal blood vessels from fundus images plays an important role in the computer aided diagnosis of retinal diseases. The task of blood vessel segmentation is challenging due to the extreme variations in morphology…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Avijit Dasgupta , Sonam Singh

Optical Coherence Tomography (OCT) provides a unique ability to image the eye retina in 3D at micrometer resolution and gives ophthalmologist the ability to visualize retinal diseases such as Age-Related Macular Degeneration (AMD). While…

计算机视觉与模式识别 · 计算机科学 2016-10-13 Stefanos Apostolopoulos , Carlos Ciller , Sandro I. De Zanet , Sebastian Wolf , Raphael Sznitman

Non-line-of-sight (NLOS) imaging of objects not visible to either the camera or illumination source is a challenging task with vital applications including surveillance and robotics. Recent NLOS reconstruction advances have been achieved…

图像与视频处理 · 电气工程与系统科学 2019-07-30 Sreenithy Chandran , Suren Jayasuriya

To analyze this characteristic of vulnerability, we developed an automated deep learning method for detecting microvessels in intravascular optical coherence tomography (IVOCT) images. A total of 8,403 IVOCT image frames from 85 lesions and…