Abstract Essay Example | Topics and Well Written Essays - 500 words - 2

Abstract - Essay Example The authors note Lukas and others as the basis of their experimentation. Lukas and others studied the criticality of this problem, and came up with results that sought to be confirmed through numerous experiments conducted by the aforementioned three authors of this article. To enhance the outcome of the study, different camera sets were employed, and authors of previous related works were not contacted. The verification process set off by carrying an overview of a digital camera and the images captured using them. The imaging pipeline is analyzed, with all roles performed by the lens, filters and the sensor being presented. The outcome of this process is influenced by the camera or scanner’s manufacturer, as well as pixel values attributed to the camera. Color filtering is then introduced. Array patterns and color spaces that complement the imaging pipeline is highlighted. Sensor noise is another overview variable of the digital camera. A number of noise types are outlined, i ncluding shot noise, pattern noise and readout noise. Emphasis is given to pattern noise, which is used in the source-camera identification probe. Approaches that are correlation-based are not ignored in the underlying pursuit. Comparisons of original and denoised images are used to estimate the pattern noise frequencies, especially the frequencies that are high in that regard. Classifier training and the detection scheme are the employed approaches under the correlation-based aspect of source-camera identification. Choosing the source camera is an essential action towards assessing experimental results. Reference patterns are used, and matched with high correlation to identify the source camera. Experimental thresholds can also be used, where the source camera chosen should exhibit a higher than threshold correlation value. Figures of images, cameras and scanners are used as physical frameworks of the study. The experimental results provide a