This paper proposes a “privacy conscious” video communication system utilizing core technology of the JPEG2000 international standard for digital image data compression. The system works not only as a conventional video communication tool but also serves as an “awareness communication” tool. In addition, bit rate for transmitting video data and hardware complexity of the system are also reduced...

Combination of cryptography and Steganography for secure communication” is an application, which combines both Cryptography methods (i.e. Encryption, decryption) and Steganography techniques to make the communication more secure. The outcome of this project is to create a cross-platform tool that can effectively hide a message (i.e. Word document) inside a image file. It is concerned with embed...

mental health in adolescents is influenced by several factors. body image is one of the factors in predicting mental health. moreover, it affects social communication and creates the social anxiety. the present study is cross-sectional and correlational. the statistical population is the guidance and high school students in shiraz in 2013-2014 that 180 students include 101 girls and 79 boys wer...

This paper proposes, designs and constructs an image recognition & voice technology based security system by highlighting the advantages of image processing technology and voice synthesis technology which are presence in the electronic market. This paper mainly approaches towards enhanced security by checking the tag image of the operator as well as recognizing voice which are validated previou...

among abundant image denoising methods proposed so far, the use of patchbased algorithms have attracted a lot of attention from image processingcommunity. although these methods are very powerful in presentation of highquality results, the impact of human visual system (hvs) is ignored in sole of them.in this paper the human visual geometry is used in preparation of a new method forimage denois...

Introduction: In Single Photon Emission Computed Tomography (SPECT), the projection data used for image reconstruction are distorted by several factors, including attenuation and scattering of gamma rays, collimator structure, data acquisition method, organ motion, and washout of radiopharmaceuticals. All these make reconstruction of a quantitative SPECT image very difficult. Simulation of a SP...

The evolution of advanced radio transmission technologies for third generation mobile radio systems has paved the way for the delivery of mobile multimedia services. In particular, wireless image and video applications are among the most popular services offered on modern mobile devices to support communication beyond the traditional voice services. The large amount of data necessary to represe...

This paper deals with the extension of information theory to the assessment of visual communication from scene to observer. The mathematical development rigorously unites the electro-optical design of image gathering and display devices with the digital processing algorithms for image coding and restoration. Results show that: End-to-end system analysis closely correlates with measurable and pe...