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 …
Nowadays, Intelligent Transportation Systems (ITS) technologies are exploring a wide range of services such as freeway management, crash prevention & safety, driver assistance, and …
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 …
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 …
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 …
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 …
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 …
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 …
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 …