Elimination of CMOS fixed pattern noise based on PCA wavelet transform

2021 ◽  
Author(s):  
Tao Zhang ◽  
Xinyang Li ◽  
Jianfeng Li ◽  
Zhi Xu
Keyword(s):  
Wavelet Transform ◽  
Pattern Noise ◽  
Fixed Pattern Noise

Filtering Method of Fixed Pattern Noise in Window Wavefront Based on Wavelet Transform

2020 ◽  
Vol 47 (9) ◽  
pp. 0904008
Author(s):  
徐凯源 Xu Kaiyuan ◽  
李大海 Li Dahai ◽  
刘昂 Liu Ang ◽  
柴立群 Chai Liqun ◽  
何宇航 He Yuhang ◽  
...  
Keyword(s):  
Wavelet Transform ◽  
Filtering Method ◽  
Pattern Noise ◽  
Fixed Pattern Noise

Randomly-Accessible Active Pixel Sensor with Wide Dynamic Range and Reduced Fixed Pattern Noise

2021 ◽  
Author(s):  
Xiaolin Liu ◽  
Zhenhao Feng ◽  
Yihong Qi ◽  
Kuiren Su ◽  
Qian Li ◽  
...  
Keyword(s):  
Dynamic Range ◽  
Wide Dynamic Range ◽  
Active Pixel Sensor ◽  
Active Pixel ◽  
Pattern Noise ◽  
Fixed Pattern Noise

A 0.5 V PWM CMOS Imager With 82 dB Dynamic Range and 0.055% Fixed-Pattern-Noise

2013 ◽  
Vol 48 (10) ◽  
pp. 2522-2530 ◽  
Author(s):  
Meng-Ting Chung ◽  
Chih-Lin Lee ◽  
Chin Yin ◽  
Chih-Cheng Hsieh
Keyword(s):  
Dynamic Range ◽  
Cmos Imager ◽  
Pattern Noise ◽  
Fixed Pattern Noise

The Study of Tire Pattern Noise by Using Wavelet Transform

2011 ◽  
Vol 105-107 ◽  
pp. 267-270 ◽  
Author(s):  
Sung Wook Hwang ◽  
Jin Hyuk Han ◽  
Ki Duck Sung ◽  
Sang Kwon Lee
Keyword(s):  
Fourier Transform ◽  
Wavelet Transform ◽  
The Other ◽  
Road Noise ◽  
Signal Process ◽  
The Road ◽  
Pattern Noise ◽  
On The Road ◽  
Non Stationary Signal ◽  
The Relationship

Tire noise is classified by pattern noise and road noise in a vehicle. Especially pattern noise has impulsive characteristics since it is generated by impacting of tire’s block on the road. Therefore, a special signal process is needed other than traditional Fourier Transform, because the characteristic of signal is varying with time. On the other hand, the pattern noise is a kind of non-stationary signal and is related to the impulsive train of pitch sequence of a block. In this paper, Wavelet Transform is applied to verify the impulse signal caused by impact of block and groove and to verify the relationship between the pattern noise and the train of pitch sequence.

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