Mobile Blog: Video, Media, Augmented Reality, Rich Media, IVVR

Download my A-graded thesis. Abstract: Interactive voice and video response (IVVR (Interactive Voice & Video Response)) is a mobile technology enabling interactive services based on 3G video telephony. IVVR applications can take advantage of bidirectional real-time multimedia streaming, enabling speech and camera-based interaction. Games are a proven way to draw users into new technologies. This thesis analyses IVVR

Mal was anderes:

photo credit: Stinging Eyes

Recently I have read some articles (this, this one and many more) about how mini base stations can be used to set-up femtocells or picocells at home or in offices for better signal quality. I came across the term “deep coverage” in every article. It is not exactly clear what “deep coverage” has to do with signal quality. I explain it for you:

The characteristics of wireless networks include frequency dependent fading, shadowing, reflection at large obstacles, refraction depending on the density of the medium, scattering at small objects, and diffraction at edges. The effect of multipath propagation can cause jitter when the radio signal reaches the receiver by two or more paths at different times. These effects occur in macrocells (multiple km

photo credit: phauly

In desktop video conferencing, the video conferencing application is normally bundled to an Instant Messaging software that includes text chat capabilities. Users can appoint or prearrange a video conference using textual chat. In contrast, the current evolution of video telephony in UMTS (Universal Mobile Telecommunications System) networks based on the circuit-switched 3G-324M service does not seamlessly combine video conferencing with other communication channels. The notion of video telephony in the mobile environment is nearer to standard voice calling than in the stationary world. Therefore, it is more likely that somebody will place a video call without prior announcement. This leads to privacy and inconvenience concerns. The callee might not want to be seen during a conversation for a variety reasons: A video call

photo credit: Iain Farrell

Even with a great deal of marketing, early attempts to convert users to the video telephony technology flopped (Jones and Marsden). In contrast, desktop video conferencing is incredibly popular for private person-to-person conversations and widely used for video conferencing in business environments such as telepresence for computer-supported cooperative work (CSCW).

In desktop video conferencing scenarios, typically a stationary computer is used. Camera and microphone are fixed and usually maintain the same distance from the person participating during the conversation. Moreover, lighting conditions are generally better than