Probably more work has been done on textual data than on other media formats. A text BIC can be converted into a set of index terms, an abstract, a summary, or voice. It can be translated into another language. In some cases, it can even be converted into formatted data or graphs. Much work in scientific visualization has addressed the question of appropriate graphic representations for formatted data.
Video contains both pictures and a sound track.
DICs can be derived from a video BIC by using one or both of these elements. The sound track can be converted to text. Frames can be selected from the video. Video abstracts can combine elements of both. Several issues arise in these conversions.