Scent delivery systems or what are known as olfactory displays has been the most recent trend in human computer interaction, control and automation, virtual reality, augmented reality, e-commerce and many other fields in the computer world. These devices have the ability to generate smell combinations for some digital items in the computer virtual world. The idea is to deliver additional perception (olfactory perception) to the user to enrich his/her indulgence while interacting with the computer. The proposed olfactory display is similar to this concept but greatly differ in many aspects, using laser based atomization method to produce enough sudden heat to generate odors that cannot be generated using chemical materials these odors are smoke, gun powder, wood milling, cigarettes smoking, plastic melting and Incense. All olfactory displays researchers avoid involving these types of odors in their studies due to the difficulty of the generation and control of such odors and the absence of their correct and precise generation using chemical materials. The proposed system will provide a way of generating such odors while interactive game is being played by a user with minimum impact on the environment to avoid adaption to the user's olfactory system and polluting the environment that the user occupies.
In the recent past years the newly emerging trend of 3D movies and projection drawn huge attention of researchers and enterprises, ranging from movie producing companies and entertainment to researchers and program developers, similar to other multimedia files these types of media need to copyrighted, a 3D video required a significant amount of effort to become a tangible product. In this paper we will present a technique to watermark such media for copyright protection purposes for 3D video to achieve both imperceptibility and robustness, using a scene change detection technique to identify the best location (frame) to be impregnated with the watermark. The 3D video file has attributes such as color channel, stereo objects and depth prospective, in this paper we will focus on such features to inject our watermark, and then discuss the impact of such process on the resulting file. From the experimental results we have concluded that our algorithm has proven imperceptibility and robustness.
Olfactory display devices have become a recent demand and trend in human computer interaction, providing a new member in the human computer interaction peripheral devices family. These devices enrich the olfactory sense for the user stimulating him/her by means of scent stimuli in correspondence to an object or an event shown on the visual display. Some researches have been done to cover the design, usage and delivery for the scent to the users, other works covered some analysis on the scent categorization and grouping. In this paper a focus is on the controlled atomization of a liquid based scent material while guaranteeing: speed, intensity, durability, compactness and scalability, these important factors are crucial to build a commercial grade olfactory displays containing a universal, interchangeable and versatile but yet durable scent disparity component to facilitate the realization of olfactory display devices.
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