Introduction: Brain visual evoked potential (VEP) signals are commonly known to be accompanied by high levels of background noise typically from the spontaneous background brain activity of electroencephalography (EEG) signals. Material and Methods: A model based on dyadic filter bank, discrete wavelet transform (DWT), and singular value decomposition (SVD) was developed to analyze the raw data...

The quality of images generated by computer graphics rendering algorithms is mainly affected visible distortion at some pixel locations. Image assessment (IQA) metrics are commonly utilized to assess the rendered images, but their results a global difference value, which does not provide pixel-wise differences optimize renderings. In contrast, visibility models including visual perception and d...

The watermarking system proposed in this paper offers an expert system technique to help solve the ownership claim for accidental attacks on digital images. The proposed spatial domain watermarking system is based on fuzzy logic and was designed with the intent of embedding watermark features such that they are undetectable to the human visual system. To achieve this objective, the development ...

Human vision system can optionally process the visual information and adjust the contradiction between the limited resources and the huge visual information. Building attention models similar to human visual attention system should be very beneficial to computer vision and machine intelligence; meanwhile, it has been a challenging task due to the complexity of human brain and limited understand...

there are a lot of researches in the world about attacks on information systems (is). although there have been many attempts to classify threats of is’s especially in health information systems (his), it is still necessary for all health organization to identify new threats and their sources which threaten security of health care domain. the main aim of this paper is to present a research agend...

the video quality assessment must be adapted to the human visual system, which is why researchers have performed subjective viewing experiments in order to obtain the conditions of encoding of video systems to provide the best quality to the user. the objective of this study is to assess the video quality using image features extraction without using reference video. rmse values and processing ...