Internet of Things Camera Identification Algorithm Based on Sensor Pattern Noise Using Color Filter Array and Wavelet Transform

2019 ◽  
pp. 211-223 ◽  
Author(s):  
Kimia Bolouri ◽  
Amin Azmoodeh ◽  
Ali Dehghantanha ◽  
Mohammad Firouzmand
Keyword(s):  
Wavelet Transform ◽  
Internet Of Things ◽  
Color Filter ◽  
Identification Algorithm ◽  
Color Filter Array ◽  
Camera Identification ◽  
Filter Array ◽  
Pattern Noise ◽  
Sensor Pattern Noise

scholarly journals Discrete Wavelet Transform on Color Picture Interpolation of Digital Still Camera

VLSI Design ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Yu-Cheng Fan ◽  
Yi-Feng Chiang
Keyword(s):  
Wavelet Transform ◽  
Discrete Wavelet Transform ◽  
Color Filter ◽  
Edge Weight ◽  
Discrete Wavelet ◽  
Digital Information ◽  
Color Filter Array ◽  
Image Information ◽  
Basic Wavelet ◽  
Filter Array

Many people use digital still cameras to take photographs in contemporary society. Significant amounts of digital information have led to the emergence of a digital era. Because of the small size and low cost of the product hardware, most image sensors use a color filter array to obtain image information. However, employing a color filter array results in the loss of image information; thus, a color interpolation technique must be employed to retrieve the original picture. Numerous researchers have developed interpolation algorithms in response to various image problems. The method proposed in this study involves integrating discrete wavelet transform (DWT) into the interpolation algorithm. The method was developed based on edge weight and partial gain characteristics and uses the basic wavelet function to enhance the edge performance and processes of the nearest or larger and smaller direction gradients. The experiment results were compared to those of other methods to verify that the proposed method can improve image quality.

Toward blind joint demosaicing and denoising of raw color filter array data

2021 ◽  
Author(s):  
Fangfang Wu ◽  
Tao Huang ◽  
Weisheng Dong ◽  
Guangming Shi ◽  
Zhonglong Zheng ◽  
...  
Keyword(s):  
Color Filter ◽  
Color Filter Array ◽  
Array Data ◽  
Filter Array

scholarly journals Adaptive Wiener filter super-resolution of color filter array images

2013 ◽  
Vol 21 (16) ◽  
pp. 18820 ◽  
Author(s):  
Barry K. Karch ◽  
Russell C. Hardie
Keyword(s):  
Wiener Filter ◽  
Super Resolution ◽  
Color Filter ◽  
Color Filter Array ◽  
Filter Array
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