Digital video is becoming increasingly ubiquitous. However, editing video remains difficult for several reasons: it is a time-based medium, it has dual tracks of audio and video, and current tools force users to work at the smallest level of detail. Based on interviews with professional video editors, we developed a video editor, called Silver, that uses metadata to make digital video editing more accessible to novices. To help users visualize video, Silver provides multiple views with different semantic content and at different levels of abstraction, including storyboard, editable transcript, and timeline views. Silver offers smart editing operations that help users resolve the inconsistencies that arise because of the different boundaries in audio and video. We conducted a preliminary user study to investigate the effectiveness of the Silver smart editing. Participants successfully edited video after only a short tutorial, both with and without smart editing assistance. Our research suggests several ways in which video editing tools could use metadata to assist users in the reuse and composition of video.
Silver is an authoring tool that aims to allow novice users to edit digital video. The goal is to make editing of digital video as easy as text editing. Silver provides multiple coordinated views, including project, source, outline, subject, storyboard, textual transcript and timeline views. Selections and edits in any view are synchronized with all other views. A variety of recognition algorithms are applied to the video and audio content and then are used to aid in the editing tasks. The Informedia Digital Library supplies the recognition algorithms and metadata used to support intelligent editing, and Informedia also provides search and a repository. The metadata includes shot boundaries and a time-synchronized transcript, which are used to support intelligent selection and intelligent cut/copy/paste.
Digital video is becoming more ubiquitous. Unfortunately, editing video remains difficult for several reasons. It has dual tracks of audio and video and may require working at the smallest level of detail. Silver is an authoring tool that uses video metadata to overcome these problems. It provides multiple views with different content types and at different levels of abstraction. This paper focuses on Silver's smart selection and editing operations, which work at a high semantic level and handle different boundaries in audio and video. Our research suggests several ways in which video editing tools can assist users in the composition and reuse of video.
Digital video is becoming increasingly ubiquitous. However, editing video remains difficult for several reasons: it is a time-based medium, it has dual tracks of audio and video, and current tools force users to work at the smallest level of detail. Based on interviews with professional video editors, we developed a video editor, called Silver, that uses metadata to make digital video editing more accessible to novices. To help users visualize video, Silver provides multiple views with different semantic content and at different levels of abstraction, including storyboard, editable transcript, and timeline views. Silver offers smart editing operations that help users resolve the inconsistencies that arise because of the different boundaries in audio and video.
Silver is an authoring tool that allows novice users to edit digital video. A variety of AI techniques provide high-level metadata from the audio signal and video, including shot boundaries and a time-synchronized transcript. Silver uses this metadata to provide multiple, synchronized views of the content, including transcript, tree outline and hierarchical timeline views. These interface components are used to organize and edit the source material. The user can drag and drop representative frames or directly cut and paste in any view, including the transcript. Our work now focuses on supporting intelligent selection when there is a disparity between audio and video boundaries. KeywordsDigital video editing, multimedia authoring, video library.
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