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Spectral imaging enables spatially-resolved identification of materials in remote sensing, biomedicine, and astronomy. However, acquisition times require balancing spectral and spatial resolution with signal-to-noise. Hyperspectral imaging…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Nguyen Tran , Rupali Mankar , David Mayerich , Zhu Han

Hyperspectral imagery (HSI) is an established technique with an array of applications, but its use is limited due to both practical and technical issues associated with spectral devices. The goal of the ICASSP 2024 'Hyper-Skin' Challenge is…

Image and Video Processing · Electrical Eng. & Systems 2024-04-17 Wojciech Czaja , Jeremiah Emidih , Brandon Kolstoe , Richard G. Spencer

In this work, a novel target detector for hyperspectral imagery is developed. The detector is independent on the unknown covariance matrix, behaves well in large dimensions, distributional free, invariant to atmospheric effects, and does…

Image and Video Processing · Electrical Eng. & Systems 2020-03-06 Ahmad W. Bitar , Jean-Philippe Ovarlez , Loong-Fah Cheong , Ali Chehab

Unsupervised estimation of the dimensionality of hyperspectral microspectroscopy datasets containing pure and mixed spectral features, and extraction of their representative endmember spectra, remains a challenge in biochemical data mining.…

Advanced Driver Assistance Systems (ADAS) are designed with the main purpose of increasing the safety and comfort of vehicle occupants. Most of current computer vision-based ADAS perform detection and tracking tasks quite successfully under…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Jon Gutiérrez-Zaballa , Koldo Basterretxea , Javier Echanobe , M. Victoria Martínez , Inés del Campo

Biosensors are an essential tool for medical diagnostics, environmental monitoring and food safety. Typically, biosensors are designed to detect specific analytes through functionalization with the appropriate capture agents. However, the…

Medical Physics · Physics 2023-09-26 Simon J. Ward , Tengfei Cao , Xiang Zhou , Catie Chang , Sharon M. Weiss

Methods for source detection in high noise environments are important for single-photon emission computed tomography (SPECT) medical imaging and especially crucial for homeland security applications, which is our main interest. In the…

Instrumentation and Detectors · Physics 2020-10-28 Weston Baines , Peter Kuchment , Jean Ragusa

Hyperspectral image (HSI) densely samples the world in both the space and frequency domain and therefore is more distinctive than RGB images. Usually, HSI needs to be calibrated to minimize the impact of various illumination conditions. The…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Zhuoran Du , Shaodi You , Cheng Cheng , Shikui Wei

Detection of small objects and objects far away in the scene is a major challenge in surveillance applications. Such objects are represented by small number of pixels in the image and lack sufficient details, making them difficult to detect…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Fatih Cagatay Akyon , Sinan Onur Altinuc , Alptekin Temizel

We introduce a novel video-rate hyperspectral imager with high spatial, and temporal resolutions. Our key hypothesis is that spectral profiles of pixels in a super-pixel of an oversegmented image tend to be very similar. Hence, a…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Vishwanath Saragadam , Michael DeZeeuw , Richard Baraniuk , Ashok Veeraraghavan , Aswin Sankaranarayanan

Hyperspectral images are of crucial importance in order to better understand features of different materials. To reach this goal, they leverage on a high number of spectral bands. However, this interesting characteristic is often paid by a…

Image and Video Processing · Electrical Eng. & Systems 2020-06-01 Jin-Fan Hu , Ting-Zhu Huang , Liang-Jian Deng , Tai-Xiang Jiang , Gemine Vivone , Jocelyn Chanussot

This study introduces a novel unsupervised medical image feature extraction method that employs spatial stratification techniques. An objective function based on weight is proposed to achieve the purpose of fast image recognition. The…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Qishi Zhan , Dan Sun , Erdi Gao , Yuhan Ma , Yaxin Liang , Haowei Yang

The increase in non-biodegradable waste is a worldwide concern. Recycling facilities play a crucial role, but their automation is hindered by the complex characteristics of waste recycling lines like clutter or object deformation. In…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Sara Casao , Fernando Peña , Alberto Sabater , Rosa Castillón , Darío Suárez , Eduardo Montijano , Ana C. Murillo

Food fraud has been an area of great concern due to its risk to public health, reduction of food quality or nutritional value and for its economic consequences. For this reason, it's been object of regulation in many countries (e.g. [1],…

Computer Vision and Pattern Recognition · Computer Science 2016-11-08 João J. de Macedo Neto , Jefersson A. dos Santos , William Robson Schwartz

Hyperspectral imaging (HSI) has a wide range of applications from environmental monitoring to biotechnology. Current snapshot HSI techniques all require a trade-off between spatial and spectral resolution and are thus unable to achieve high…

Optics · Physics 2023-01-11 Yingwen Zhang , Duncan England , Benjamin Sussman

Recognizing an object's material can inform a robot on the object's fragility or appropriate use. To estimate an object's material during manipulation, many prior works have explored the use of haptic sensing. In this paper, we explore a…

Robotics · Computer Science 2019-01-08 Zackory Erickson , Nathan Luskey , Sonia Chernova , Charles C. Kemp

The detection of exoplanets in high-contrast imaging (HCI) data hinges on post-processing methods to remove spurious light from the host star. So far, existing methods for this task hardly utilize any of the available domain knowledge about…

Instrumentation and Methods for Astrophysics · Physics 2020-12-10 Timothy D. Gebhard , Markus J. Bonse , Sascha P. Quanz , Bernhard Schölkopf

Target detection in hyperspectral imagery is the process of locating pixels from an image which are likely to contain target, typically done by comparing one or more spectra for the desired target material to each pixel in the image. Target…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 William Basener

Hyperspectral Imaging (HSI) for fluorescence-guided brain tumor resection enables visualization of differences between tissues that are not distinguishable to humans. This augmentation can maximize brain tumor resection, improving patient…

Image and Video Processing · Electrical Eng. & Systems 2024-02-07 David Black , Jaidev Gill , Andrew Xie , Benoit Liquet , Antonio Di leva , Walter Stummer , Eric Suero Molina

We provide an open-source dataset of RGB and NIR-HSI (near-infrared hyperspectral imaging) images with associated segmentation masks and NIR spectra of 2242 individual malting barley kernels. We imaged every kernel pre-exposure to moisture…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Ole-Christian Galbo Engstrøm , Erik Schou Dreier , Birthe Møller Jespersen , Kim Steenstrup Pedersen