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In this paper, a new multi-response optimization (MRO) approach is proposed to find the optimal parameter setting of the controllable factors from an economic point of view. In some cases, rejection costs, like the rework cost and scrap cost, are incurred when outgoing products fall above the upper specification limit or below the lower specification limit. A rejection cost function is established...
Photo response nonuniformity noise is a component of sensor pattern noise (SPN) of digital cameras. It characterizes the imaging devices of cameras and has been widely used in source camera identification (SCI). However, the reference SPN always be contaminated by unwanted nonunique artifacts. Previous works reported that these nonunique artifacts were periodic signals shared among cameras, which...
Photo-response non-uniformity (PRNU) noise has been recognized as a unique fingerprint of digital cameras. However, how to extract precise PRNU noise from a given image is a main challenge. Previous literatures assume PRNU noise is a white Gaussian noise (WGN) and extracted by an additive denoising filter (ADF). However, experiments have demonstrated that the PRNU noise is a multiplicative noise....
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