Progressive joint low-light enhancement and noise removal for raw images

Y Lu, SW Jung - IEEE Transactions on Image Processing, 2022 - ieeexplore.ieee.org
Low-light imaging on mobile devices is typically challenging due to insufficient incident light
coming through the relatively small aperture, resulting in low image quality. Most of the …

SVPS: Cloud-based smart vehicle parking system over ubiquitous VANETs

QGK Safi, S Luo, L Pan, W Liu, R Hussain, SH Bouk - Computer Networks, 2018 - Elsevier
Due to immense urbanization and growing number of vehicles, parking space is scarce and
expensive in metropolitan cities. Drivers spend more time in searching and wandering for …

Agile urban parking recommendation service for intelligent vehicular guiding system

EHK Wu, J Sahoo, CY Liu, MH Jin… - IEEE Intelligent …, 2014 - ieeexplore.ieee.org
Nowadays, Intelligent Transportation Systems (ITS) technologies are exploring a wide range
of services such as freeway management, crash prevention & safety, driver assistance, and …

Blur processing using double discrete wavelet transform

Y Zhang, K Hirakawa - Proceedings of the IEEE Conference …, 2013 - openaccess.thecvf.com
We propose a notion of double discrete wavelet transform (DDWT) that is designed to
sparsify the blurred image and the blur kernel simultaneously. DDWT greatly enhances our …

Camera processing with chromatic aberration

JT Korneliussen, K Hirakawa - IEEE Transactions on Image …, 2014 - ieeexplore.ieee.org
Since the refractive index of materials commonly used for lens depends on the wavelengths
of light, practical camera optics fail to converge light to a single point on an image plane …

Likelihood estimation and wavelet transformation based optimization for minimization of noisy pixels

A Dhaka, A Nandal, HG Rosales, H Malik… - IEEE …, 2021 - ieeexplore.ieee.org
In recent times the statistical computation techniques are gaining a lot of interest for
analyzing the behavior of various mathematical distributions. This paper derives the …

Improved denoising via Poisson mixture modeling of image sensor noise

J Zhang, K Hirakawa - IEEE Transactions on Image Processing, 2017 - ieeexplore.ieee.org
This paper describes a study aimed at comparing the real image sensor noise distribution to
the models of noise often assumed in image denoising designs. A quantile analysis in pixel …

Minimum risk wavelet shrinkage operator for Poisson image denoising

W Cheng, K Hirakawa - IEEE Transactions on Image …, 2015 - ieeexplore.ieee.org
The pixel values of images taken by an image sensor are said to be corrupted by Poisson
noise. To date, multiscale Poisson image denoising techniques have processed Haar frame …

General image denoising framework based on compressive sensing theory

J Jin, B Yang, K Liang, X Wang - Computers & graphics, 2014 - Elsevier
Image denoising is an important issue in many real applications. Image denoising can be
considered to be recovering a signal from inaccurately and/or partially measured samples …

Poisson Wiener filtering with non-local weighted parameter estimation using stochastic distances

AA Bindilatti, MAC Vieira, NDA Mascarenhas - Signal Processing, 2018 - Elsevier
The Wiener filter is a classical approach for signal denoising and it is known to be the
optimum filter in the sense of the linear minimum mean square error (LMMSE). In general …