Authentic Video Materials Research Articles

Echtzeit-Eye Tracking - Grundlagen und Lösungsprinzipien

Tracking and quantification of eye movements in real time is a prerequisite for future computer assisted laser positioning for diagnostic or therapeutic purposes. Principles of TV-image processing are described: tracking of contrasts and pattern recognition tracking by object correlation; their relevance for tracking retinal targets is illustrated using authentic video material. For practical use, the pattern recognition technique qualifies better. The influence of the systems variable parameters on retinal target pursuence is described. Automatic target pursuence of authentic eye movements reached tracking success rates well above 90% thus outperforming manual tracking by one order of magnitude.

Evaluating the Use of Captioned Video Materials in Advanced Foreign Language Learning

ABSTRACT As increasing numbers of foreign language programs begin to integrate video materials into their curricula, more attention is being focused on ways and means to optimize the student's comprehension of the language of film and television segments. This article reports on the results of research conducted to evaluate the use of captioning (on‐screen target language subtitles) as a pedagogical aid to facilitate the use of authentic video materials in the foreign language classroom, especially in advanced or upper‐level courses. Using Russian and ESL as target languages, the data collected strongly support a positive correlation between the presence of captions and increased comprehension of the linguistic content of the video material, suggesting the use of captions to bridge the gap between the learner's competence in reading and listening. The paper includes a detailed description of the research methodology, implementation, data analysis, and conclusions. A discussion of the results and suggestions for further research are also included.