ABSTRACT
Contents 18.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530 18.2 Tools for Video Browsing and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532
18.2.1 Domain-Independent Approaches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533 18.2.1.1 Simple Video Players . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533 18.2.1.2 Enhanced Video Players . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534 18.2.1.3 Approaches Based on Key Frames . . . . . . . . . . . . . . . . . . . 539
18.2.2 News Content. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542 18.2.2.1 Browsing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 542
18.2.2.2 News Story Segmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . 544 18.2.2.3 News Story Threading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545
18.2.3 Fictional Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546 18.3 Paradigms for Interactive Search, Browsing, and Content
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548 18.3.1 User Action Sequence S1 (Preview-Click’n’View) . . . . . . . . . . . . . . 549 18.3.2 User Action Sequence S2 (Click’n’Browse) . . . . . . . . . . . . . . . . . . . . . 550 18.3.3 User Action Sequence S3 (Click-View-Explore’n’Slide) . . . . . . . . 550 18.3.4 User Action Sequence S4 (Preview-Click-View’n’Browse) . . . . . 551 18.3.5 User Action Sequence S5 (Click’n’More). . . . . . . . . . . . . . . . . . . . . . . 552
18.4 Evaluation and Benchmarking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553 18.4.1 Browsing and Interactive Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553 18.4.2 Near-Duplicate Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554 18.4.3 Event Detection and Instance Linking . . . . . . . . . . . . . . . . . . . . . . . . . 555
18.5 Conclusion and Outlook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 556 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557
18.1 Introduction Users in TV postproduction need to deal with large amounts of audiovisual content that is often sparsely annotated and contains a high degree of redundancy. Their task is to efficiently organize content and select the most appropriate segments for the productions they are working on, often under time pressure. Traditionally, these processes rely crucially on the knowledge and memory of people who were involved in preproduction and content capture. This is not only an issue of production costs but it also hinders the transformation of production processes toward more flexible and distributed workflows.
