This work proposes a wavelet-based image watermarking (WIW) technique, based on the human visible system (HVS) model and neural networks, for image copyright protection. A characteristic of the HVS, which is called the just noticeable difference (JND) profile, is employed in the watermark embedding to enhance the imperceptibility of the technique. First, we derive the allowable visibility range...

We investigate the effects of image charges, interfacial charge discreteness, and surface roughness on spherical electric double layer structures in electrolyte solutions with divalent counterions in the setting of the primitive model. By using Monte Carlo simulations and the image charge method, the zeta potential profile and the integrated charge distribution function are computed for varying...

  Introduction: There are several technical features that make PET an ideal device for the noninvasive evaluation of cardiac physiology. Organ motion due to respiration is a major challenge in diagnostic imaging, especially in cardiac PET imaging. These motions reduce image quality by spreading the radiotracer activity over an increased volume, distorting apparent les...

The present article examines factors that influence why students post information on their social network profile which employers would find inappropriate. Results show that many students make a conscious attempt to portray a particular image and, as predicted, their intended image was related to whether they posted inappropriate information. Those who believed they portrayed a hardworking imag...

gait contains important information about the status of the human body and physiological signs. in many medical applications, it isimportant to monitor and accurately analyze the gait of the patient. since walking shows the reproducibility signs in several phases,separating these phases can be used for the gait analysis. in this study, a method based on image processing for extracting phases of...

In this paper, we describe the design of a profile generator toolkit, which aims to automatically create realistic user profiles for a mobile personalized portal service. These profiles simulate actual user behavior and are utilized to experiment with a personalized crawling system, called eRACE. With the help of this tool, we will assess the performance and scalability of the eRACE system by c...

Perception is the most basic form of cognition thinking activity. Consumers' perception image to the product form is based on human's visual perception characteristics, which can be summarized as the overall organization, the constant memory, the simple regulating and the identifiable discrimination according to the Gestalt principle. Firstly, the study analyzes the characteristics of consumers...

Now a days the popularity of social networks like face book, twitter are mostly used by the people. Many of them use human face images to their profile. And also we can maintain large scale database for the image storage. To avoid the large database use two algorithms like attribute enhanced sparse codewords and attribute embedded inverted indexing and used in offline and online storage respect...

abstractobjective: to investigate the impact of respiratory motion on localization, and quantification lung lesions for the gross tumour volume utilizing an in-house developed auto3dreg programme and dynamic nurbs-based cardiac-torso digitised phantom (ncat). methods: respiratory motion may result in more than 30% underestimation of the suv values of lung, liver and kidney tumour lesions. the m...

When the conventional optical coherence tomography (OCT) measures transmittance and absorbance of target in scattering media, its image is affected by media gets a modulated profile. Due to influence absorption OCT cannot eliminate this modulation. By using our proposed idea, ghost imaging-OCT (GI-OCT), apply GI technique measurement path OCT, we can reconstruct profile without In work, introdu...