Keith M. Williams

8 DVX – the descriptive video exchange project: using crowd-based audio clips to improve online video access for the blind and the visually impaired

Abstract: In recent years, we have witnessed an explosion in the amount of online information available in video format. Full participation in an information society now requires the ability to access and understand video data. This requirement presents a major obstacle to people who can only see poorly, or not at all. As a result, their access to important medical information may be severely compromised. Furthermore, video data cannot be processed by current text-based search techniques. This chapter examines the use of audio and text description, created through crowd sourcing, ...

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