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Color image segmentation is a very emerging research topic in the area of color image analysis and pattern recognition. Many state-of-the-art algorithms have been developed for this purpose. But, often the segmentation results of these…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Dibya Jyoti Bora

Image colorization is the process of colorizing grayscale images or recoloring an already-color image. This image manipulation can be used for grayscale satellite, medical and historical images making them more expressive. With the help of…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Ahmed Samir Ragab , Shereen Aly Taie , Howida Youssry Abdelnaby

In this paper, we present a blur reduction technique for smartphone-to-smartphone visible light communications (S2SVLC). The key technique it to avoid the repeated scanning of the transmitted data and to lower the amount of data discarded…

Image and Video Processing · Electrical Eng. & Systems 2025-07-01 Vaigai Nayaki Yokar , Hoa Le-Minh , Zabih Ghassemlooy , Wai Lok Woo

This paper presents a novel method for detection of LSB matching steganogra- phy in grayscale images. This method is based on the analysis of the differences between neighboring pixels before and after random data embedding. In natu- ral…

Multimedia · Computer Science 2017-03-03 Daniel Lerch-Hostalot , David Megías

While many image colorization algorithms have recently shown the capability of producing plausible color versions from gray-scale photographs, they still suffer from limited semantic understanding. To address this shortcoming, we propose to…

Computer Vision and Pattern Recognition · Computer Science 2019-02-11 Jiaojiao Zhao , Jungong Han , Ling Shao , Cees G. M. Snoek

Due to the enormous requirement in public security and intelligent transportation system, searching an identical vehicle has become more and more important. Current studies usually treat vehicle as an integral object and then train a…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Ya Sun , Minxian Li , Jianfeng Lu

Taking photographs in low light using a mobile phone is challenging and rarely produces pleasing results. Aside from the physical limits imposed by read noise and photon shot noise, these cameras are typically handheld, have small apertures…

Computer Vision and Pattern Recognition · Computer Science 2019-10-28 Orly Liba , Kiran Murthy , Yun-Ta Tsai , Tim Brooks , Tianfan Xue , Nikhil Karnad , Qiurui He , Jonathan T. Barron , Dillon Sharlet , Ryan Geiss , Samuel W. Hasinoff , Yael Pritch , Marc Levoy

We analyse the capability of distinguishing between different intensities in a monochromatic, pixellated image acquisition system at low light intensities. In practice, the latter means that each pixel detects a countable number of photons…

Instrumentation and Detectors · Physics 2020-11-19 Mattias Jönsson , Gunnar Björk

We propose a new dataset for learning local image descriptors which can be used for significantly improved patch matching. Our proposed dataset consists of an order of magnitude more number of scenes, images, and positive and negative…

Computer Vision and Pattern Recognition · Computer Science 2018-04-18 Rahul Mitra , Nehal Doiphode , Utkarsh Gautam , Sanath Narayan , Shuaib Ahmed , Sharat Chandran , Arjun Jain

Visual localization is the task of estimating camera pose in a known scene, which is an essential problem in robotics and computer vision. However, long-term visual localization is still a challenge due to the environmental appearance…

Robotics · Computer Science 2022-12-02 Yuxuan Chen , Timothy D. Barfoot

We introduce Variational State-Space Filters (VSSF), a new method for unsupervised learning, identification, and filtering of latent Markov state space models from raw pixels. We present a theoretically sound framework for latent state…

Machine Learning · Computer Science 2022-03-22 Daniel Pfrommer , Nikolai Matni

There exists a widely accepted set of assertions in the digital image and video coding literature, which are as follows: the Human Visual System (HVS) is more sensitive to luminance (often confused with brightness) than photon energies…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Lee Prangnell

Recently, machine learning methods presented a viable solution for automated classification of image-based data in various research fields and business applications. Scientists require a fast and reliable solution to be able to handle the…

Solar and Stellar Astrophysics · Physics 2020-07-07 T. Szklenár , A. Bódi , D. Tarczay-Nehéz , K. Vida , G. Marton , Gy. Mező , A. Forró , R. Szabó

This work proposes for the first time to utilize the regular smartphone -- a popular assistive gadget -- to design a novel, non-invasive method for self-monitoring of one's hydration level on a scale of 1 to 4. The proposed method involves…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Rose Alaslani , Levina Perzhilla , Muhammad Mahboob Ur Rahman , Taous-Meriem Laleg-Kirati , Tareq Y. Al-Naffouri

Over the years, various algorithms were developed, attempting to imitate the Human Visual System (HVS), and evaluate the perceptual image quality. However, for certain image distortions, the functionality of the HVS continues to be an…

Image and Video Processing · Electrical Eng. & Systems 2022-08-09 Shira Faigenbaum-Golovin , Or Shimshi

Our multi-view metric learning framework enables robust characterization of star categories by directly learning to discriminate in a multi-faceted feature space, thus, eliminating the need to combine feature representations prior to…

Instrumentation and Methods for Astrophysics · Physics 2020-09-01 K. B. Johnston , S. M. Caballero-Nieves , V. Petit , A. M. Peter , R. Haber

With the increasing use of smartphones in our daily lives, these devices have become capable of performing many complex tasks. Concerning the need for continuous monitoring of vital signs, especially for the elderly or those with certain…

Signal Processing · Electrical Eng. & Systems 2024-03-29 Taha Samavati , Mahdi Farvardin , Aboozar Ghaffari

Identifying chemical compounds is essential in several areas of science and engineering. Laser-based techniques are promising for autonomous compound detection because the optical response of materials encodes enough electronic and…

Machine Learning · Computer Science 2023-03-17 Thulasi Bikku , Rubén A. Fritz , Yamil J. Colón , Felipe Herrera

The widespread utilization of smartphones has provided extensive availability to Inertial Measurement Units, providing a wide range of sensory data that can be advantageous for the detection of transportation modes. The objective of this…

Machine Learning · Computer Science 2023-10-18 Qinrui Tang , Hao Cheng

In this paper we investigate the problem of localizing a mobile device based on readings from its embedded sensors utilizing machine learning methodologies. We consider a real-world environment, collect a large dataset of 3110 datapoints,…

Machine Learning · Computer Science 2017-06-21 David Mascharka , Eric Manley