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Though modern microscopes have an autofocusing system to ensure optimal focus, out-of-focus images can still occur when cells within the medium are not all in the same focal plane, affecting the image quality for medical diagnosis and…

Image and Video Processing · Electrical Eng. & Systems 2023-07-31 Ioana Mazilu , Shunxin Wang , Sven Dummer , Raymond Veldhuis , Christoph Brune , Nicola Strisciuglio

Transparent object perception is indispensable for numerous robotic tasks. However, accurately segmenting and estimating the depth of transparent objects remain challenging due to complex optical properties. Existing methods primarily delve…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Jiangyuan Liu , Hongxuan Ma , Yuxin Guo , Yuhao Zhao , Chi Zhang , Wei Sui , Wei Zou

Change detection is one of the fundamental applications of synthetic aperture radar (SAR) images. However, speckle noise presented in SAR images has a much negative effect on change detection. In this research, a novel two-phase…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Xinzheng Zhang , Guo Liu , Ce Zhang , Peter M Atkinson , Xiaoheng Tan , Xin Jian , Xichuan Zhou , Yongming Li

Holographic displays promise several benefits including high quality 3D imagery, accurate accommodation cues, and compact form-factors. However, holography relies on coherent illumination which can create undesirable speckle noise in the…

Graphics · Computer Science 2023-09-20 Grace Kuo , Florian Schiffers , Douglas Lanman , Oliver Cossairt , Nathan Matsuda

We propose a new method for SAR image despeckling which leverages information drawn from co-registered optical imagery. Filtering is performed by plain patch-wise nonlocal means, operating exclusively on SAR data. However, the filtering…

Computer Vision and Pattern Recognition · Computer Science 2019-10-02 Sergio Vitale , Davide Cozzolino , Giuseppe Scarpa , Luisa Verdoliva , Giovanni Poggi

To address the demosaicking problem in multispectral polarization filter array (MSPFA) imaging, we propose a multispectral polarization demosaicking network (MSPDNet) that improves image reconstruction accuracy. Imaging with a multispectral…

Image and Video Processing · Electrical Eng. & Systems 2024-10-17 Tomoharu Ishiuchi , Kazuma Shinoda

Monocular depth estimation is a recurring subject in the field of computer vision. Its ability to describe scenes via a depth map while reducing the constraints related to the formulation of perspective geometry tends to favor its use.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Marc Blanchon , Désiré Sidibé , Olivier Morel , Ralph Seulin , Daniel Braun , Fabrice Meriaudeau

Self-supervised monocular depth estimation serves as a key task in the development of endoscopic navigation systems. However, performance degradation persists due to uneven illumination inherent in endoscopic images, particularly in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Mingyang Ou , Haojin Li , Yifeng Zhang , Ke Niu , Zhongxi Qiu , Heng Li , Jiang Liu

Beyond depth estimation from a single image, the monocular cue is useful in a broader range of depth inference applications and settings---such as when one can leverage other available depth cues for improved accuracy. Currently, different…

Computer Vision and Pattern Recognition · Computer Science 2019-12-11 Zhihao Xia , Patrick Sullivan , Ayan Chakrabarti

Optical stellar interferometers have demonstrated milli-arcsecond resolution with few apertures spaced hundreds of meters apart. To obtain rich direct images, many apertures will be needed, for a better sampling of the incoming wavefront.…

Instrumentation and Methods for Astrophysics · Physics 2014-09-17 Arun Surya , Swapan K. Saha , Antoine Labeyrie

Current multi-subject customization approaches encounter two critical challenges: the difficulty in acquiring diverse multi-subject training data, and attribute entanglement across different subjects. To bridge these gaps, we propose MUSAR…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Zinan Guo , Pengze Zhang , Yanze Wu , Chong Mou , Songtao Zhao , Qian He

Hyperspectral pansharpening is receiving a growing interest since the last few years as testified by a large number of research papers and challenges. It consists in a pixel-level fusion between a lower-resolution hyperspectral datacube and…

Image and Video Processing · Electrical Eng. & Systems 2023-11-14 Giuseppe Guarino , Matteo Ciotola , Gemine Vivone , Giuseppe Scarpa

Image deblurring is a critical task in the field of image restoration, aiming to eliminate blurring artifacts. However, the challenge of addressing non-uniform blurring leads to an ill-posed problem, which limits the generalization…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Siwei Li , Mingxuan Liu , Yating Zhang , Shu Chen , Haoxiang Li , Zifei Dou , Hong Chen

Existing camera-projector calibration methods typically warp feature points from a camera image to a projector image using estimated homographies, and often suffer from errors in camera parameters and noise due to imperfect planarity of the…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Bingyao Huang , Samed Ozdemir , Ying Tang , Chunyuan Liao , Haibin Ling

Many camera sensors use a dual-pixel (DP) design that operates as a rudimentary light field providing two sub-aperture views of a scene in a single capture. The DP sensor was developed to improve how cameras perform autofocus. Since the DP…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Abdullah Abuolaim , Mahmoud Afifi , Michael S. Brown

Deep networks have shown impressive performance in the image restoration tasks, such as image colorization. However, we find that previous approaches rely on the digital representation from single color model with a specific mapping…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Xiangcheng Du , Zhao Zhou , Yanlong Wang , Zhuoyao Wang , Yingbin Zheng , Cheng Jin

Interferometry techniques are essential for extracting phase information from optical systems, enabling precise measurements of dispersion and highly sensitive detection of perturbations. While phase sensing offers enhanced sensitivity…

In synthetic aperture radar (SAR) image change detection, it is quite challenging to exploit the changing information from the noisy difference image subject to the speckle. In this paper, we propose a multi-scale spatial pooling (MSSP)…

Computer Vision and Pattern Recognition · Computer Science 2020-05-25 Jia-Wei Chen , Rongfang Wang , Fan Ding , Bo Liu , Licheng Jiao , Jie Zhang

In remote sensing, images acquired by various earth observation satellites tend to have either a high spatial and low spectral resolution or vice versa. Pansharpening is a technique which aims to improve spatial resolution of multispectral…

Computer Vision and Pattern Recognition · Computer Science 2015-11-17 Shailesh Panchal , Rajesh Thakker

Separating an audio scene into isolated sources is a fundamental problem in computer audition, analogous to image segmentation in visual scene analysis. Source separation systems based on deep learning are currently the most successful…

Sound · Computer Science 2018-11-07 Prem Seetharaman , Gordon Wichern , Jonathan Le Roux , Bryan Pardo