Video Game Software Development is a promising area of empirical research because our first observations in industry environment identified a lack of a systematic process and method support and rarely conducted/documented studies. Nevertheless, video games specific types of software products focus strongly on user interface and game design. Thus, engineering processes, methods for game construc...

More and more free multi-party video conferencing applications are readily available over the Internet and both Server-to-Client (S/C) or Peer-to-Peer (P2P) technologies are used. Investigating their mechanisms, analyzing their system performance, and measuring their quality are important objectives for researchers, developers and end users. In this paper, we take four representative video conf...

In broadcast sports video, the scoreboard is attached at a fixed location in the video and generally the scoreboard always exists in all video frames in order to help viewers to understand the match’s progression quickly. Based on these observations, we present a new localization and recognition method for scoreboard text in sport videos in this paper. The method first matches the Scale Invaria...

In image and video compression and transmission, it is important to rely on an objective image/video quality metric which accurately represents the subjective quality of processed images and video sequences. In some scenarios, it is also important to evaluate the quality of the received video sequence with minimal reference to the transmitted one. For instance, for quality improvement of video ...

In this paper, a rate control scheme is proposed based on a new rate-quantization model for emerging HEVC video codec. Unlike conventional video codecs, the HEVC has hierarchical quadtree structures with deeper coding depths. In our observations in HEVC codec, significantly different characteristics of transform residues are shown according to the CU depth levels. Motivated the observations, we...

In this paper we present an algorithm that joints segmentation and tracking of multiple objects in a video via graphcuts optimization technique. The proposed approach is composed of two steps. First, we initialize tracked objects through an initialization step based on background subtraction algorithm. Hence we obtain initial observations that will be used to predict the location of target obje...

Live video streaming over a Peer-to-Peer (P2P) architecture is promising due to its scalability and ease of deployment. Nevertheless, P2P-based video streaming systems still face some challenges regarding their performance. These systems are in fact overlays of users who control peers. As peers depend upon each other for receiving the video stream, the user behavior has an impact over the perfo...

This case study of a preschool boy with Asperger’s syndrome focuses on the use of video instruction for the purpose of teaching skills required for participation in classroom activities. After the classroom teacher identified four skill areas needing improvement (circle time, sharing, choosing centers, and singing), short video clips of instructions and role plays were created using a digital c...