Match!

Determining Image Sensor Temperature Using Dark Current

Published on Jan 8, 2019in arXiv: Image and Video Processing
Richard Matthews1
Estimated H-index: 1
(University of Adelaide),
Matthew Sorrel , Nickolas Falkner13
Estimated H-index: 13
Abstract
The state of the art method for fingerprinting digital cameras focuses on the non-uniform output of an array of photodiodes due to the distinct construction of the PN junction when excited by photons. This photo-response non-uniformity (PRNU) noise has shown to be effective but ignores knowledge of image sensor output under equilibrium states without excitation (dark current). The dark current response (DSN) traditionally has been deemed unsuitable as a source of fingerprinting as it is unstable across multiple variables including exposure time and temperature. As such it is currently ignored even though studies have shown it to be a viable method similar to that of PRNU. We hypothesise that DSN is not only a viable method for forensic identification but, through proper analysis of the thermal component, can lead to insights regarding the specific temperature at which an individual image under test was taken. We also show that digital filtering based on the discrete cosine transformation, rather than the state-of-the-art wavelet filtering, there is significant computational gain albeit with some performance degradation. This approach is beneficial for triage purposes.
  • References (16)
  • Citations (0)
References16
Newest
#1Lauren E Wilson (UC: University of Canberra)H-Index: 4
#2Michelle E. Gahan (UC: University of Canberra)H-Index: 8
Last.James Robertson (UC: University of Canberra)H-Index: 25
view all 4 authors...
2 CitationsSource
#1Richard Matthews (University of Adelaide)H-Index: 1
#2Matthew Sorell (University of Adelaide)H-Index: 6
Last.Nickolas Falkner (University of Adelaide)H-Index: 13
view all 3 authors...
1 CitationsSource
#1Zhongjie Ba (UB: University at Buffalo)H-Index: 1
#2Sixu Piao (UB: University at Buffalo)H-Index: 2
Last.Kui Ren (UB: University at Buffalo)H-Index: 60
view all 6 authors...
7 CitationsSource
Jul 1, 2017 in ICME (International Conference on Multimedia and Expo)
#1Ambuj Mehrish (IIIT-D: Indraprastha Institute of Information Technology)H-Index: 2
#2A. V. Subramanyam (IIIT-D: Indraprastha Institute of Information Technology)H-Index: 8
Last.Mohan S. Kankanhalli (IIIT-D: Indraprastha Institute of Information Technology)H-Index: 42
view all 3 authors...
2 CitationsSource
#1Ashref Lawgaly (Northumbria University)H-Index: 4
#2Fouad Khelifi (Northumbria University)H-Index: 13
14 CitationsSource
#1K R Akshatha (MIT: Manipal Institute of Technology)H-Index: 1
#2A. K. Karunakar (MIT: Manipal Institute of Technology)H-Index: 6
Last.Dinesh ShettyH-Index: 2
view all 5 authors...
13 CitationsSource
#1Kenji Kurosawa (National Research Institute of Police Science)H-Index: 7
#2Kenro Kuroki (National Research Institute of Police Science)H-Index: 7
Last.Norimitsu Akiba (National Research Institute of Police Science)H-Index: 6
view all 5 authors...
7 CitationsSource
228 CitationsSource
#1Richard Mislan (Purdue University)H-Index: 6
#2Eoghan Casey (Johns Hopkins University)H-Index: 16
Last.Gary C. Kessler (ECU: Edith Cowan University)H-Index: 12
view all 3 authors...
45 CitationsSource
#1Erwin J. Alles (Netherlands Forensic Institute)H-Index: 1
#2Zeno Geradts (Netherlands Forensic Institute)H-Index: 13
Last.Cor J. Veenman (Netherlands Forensic Institute)H-Index: 18
view all 3 authors...
35 CitationsSource
Cited By0
Newest