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Auflistung nach Schlagwort "video"

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  • Konferenzbeitrag
    MediaBrain: Annotating Videos based on Brain-Computer Interaction
    (Mensch & Computer 2012: interaktiv informiert – allgegenwärtig und allumfassend!?, 2012) Sahami Shirazi, Alireza; Funk, Markus; Pfleiderer, Florian; Glück, Hendrik; Schmidt, Albrecht
    Adding notes to time segments on a video timeline makes it easier to search, find, and play-back important segments of the video. Various approaches have been explored to annotate videos (semi) automatically to summarize videos. In this research we investigate the feasi-bility of implicitly annotating videos based on brain signals retrieved from a Brain-Computer Interface (BCI) headset. The signals provided by the BCI can reveal different infor¬mation such as brain activities, facial expressions, or the level of users excitement. This in¬formation correlates with scenes the users watch in a video. Thus, it can be used for anno¬tating a video and automatically generating a summary. To achieve the goal, an annotation tool called MediaBrain is developed and a user study is conducted. The result reveals that it is possible to annotate a video and select a set of highlights based on the excitement information.
  • Konferenzbeitrag
    Tool-Supported Experiments for Continuously Collecting Data of Subjective Video Quality Assessments During Video Playback
    (Softwaretechnik-Trends Band 40, Heft 1, 2020) Karras, Oliver; Klünder, Jil; Schneider, Kurt
    In our research project ViViReq, we aspire to research what constitutes a good video in the context of requirements communication. As part of our research plan, we develop a quality model for videos to define and evaluate the quality of videos as RE artifacts. In addition to evaluating videos, this quality model can be used by software professionals as guidance for producing and using videos. Based on our quality model, we want to analyze how specific implementations of single video characteristics, e.g., pleasure, exactly affect the viewers’ quality assessment. In this research preview, we propose to support the conduct of experiments for subjective video quality assessments with a software tool which allows continuously collecting the assessment data for generic video characteristics during video playback. The proposed solution consists of five key concepts which are briefly explained in this article.
  • Konferenzbeitrag
    Using Vision Videos in Virtual Focus Groups: Experiences and Recommendations
    (Softwaretechnik-Trends Band 41, Heft 1, 2021) Karras,O.; Polst, S.; Späth, K.
    Facilitated meetings are an established practice for the requirements engineering activities elicitation and validation. Focus groups are one well-known technique for implementing this practice. Some researchers have already reported the success ful use of vision videos for stimulating active discussions among the participants of on-site focus groups, e.g., for validating scenarios and eliciting feedback. These vision videos show scenarios of a system vision. In this way, the videos serve all parties involved as a visual reference point to actively disclose, discuss, and align their mental models of the future system to achieve a shared understanding. In the joint project TrUSD, we had planned to conduct such an on-site focus group using a vision video to validate a scenario of a future software tool, the so-called PrivacyDashboard. However, the COVID-19 pandemic and its associated measures led to an increase in remote working, which also affected us. Therefore, we had to replan and conduct the focus group virtually. We re port about our experiences and recommendations for the use of vision videos in virtual focus groups.