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 ...

This paper investigates digital data hiding schemes. The concept of information hiding will be explained at first, and its traits, requirements, and applications will be described subsequently. In order to design a digital data hiding system, one should first become familiar with the concepts and criteria of information hiding. Having knowledge about the host signal, which may be audio, image, ...

While watching a video human visual system gives more attention on the foreground objects than background objects. That is, human vision system pays more attention to the region of interest, such as the human faces in the video content. Most of the video steganography algorithms embed secret information in video by considering every part of the video frames with equal importance. So the capacit...

Visual object recognition is pervasive and central to many aspects of human functioning. In adults, it seems effortless and nearly automatic. Despite the ease with which we perceive and identify objects, however, computer simulations of object recognition have been largely unsuccessful at mimicking human recognition. Simulations can succeed in constrained environments, but cannot match the flex...

Gestalt psychology studies how the human visual system organizes the complex visual input into unitary elements. In this paper we show how the Gestalt principles for perceptual grouping and for figure-ground segregation can be used in computer vision. A number of studies will be shown that demonstrate the applicability of Gestalt principles for the prediction of human visual attention and for t...

In this paper, we present a new visual attention system which is able to detect attentive areas in the images with nonuniform resolution. Since, one of the goals of the visual attention systems is simulating of human perception, and in human visual system the foveated images processed, therefore, visual attention systems should be able to identify the saliency region to these images. We test th...

the present study aims to investigate the system of the visual transitivity by analyzing the images of american english file (2014) and cutting edge (2005) series based on halliday’s (1976) systemic functional linguistics and kress and van leuween’s (1997-2006) social semiotics. the system of visual transitivity refers to a type of process which determines how represented participants are label...