Interactive Search in Video & Lifelogging Repositories

Abstract

Due to increasing possibilities to create digital video, we are facing the emergence of large video archives that are made accessible either online or offline. Though a lot of research has been spent on video retrieval tools and methods, which allow for automatic search in videos, still the performance of automatic video retrieval is far from optimal.At the same time, the organization of personal data is receiving increasing research attention due to the challenges that are faced in gathering, enriching, searching and visualizing this data. Given the increasing quantities of personal data being gathered by individuals, the concept of a heterogeneous personal digital libraries of rich multimedia and sensory content for every individual is becoming a reality.Despite the differences between video archives and personal lifelogging libraries, we are facing very similar challenges when accessing these multimedia repositories. For example, users will struggle to find the information they are looking for in either collection if they are not able to formulate their search needs through a query. In this tutorial we discussed (i) proposed solutions for improved video & lifelog content navigation, (ii) typical interaction of content-based querying features, and (iii) advanced content visualization methods. Moreover, we discussed and demonstrate interactive video & lifelog search systems and ways to evaluate their performance.

Advanced Techniques for Geospatial Referencing in Online Media Repositories

“…In the digital transformation era, video media libraries have emerged as vast data repositories holding immense potential yet are largely untapped due to their non-machinereadable nature [1]. This limitation poses a significant challenge, particularly for users confined to basic search functionalities reliant on standard metadata such as titles, descriptions, categories, and tags.…”

Recuperação e exploração de coleções de vídeos baseadas em agrupamento hierárquico

“…Os descritores são utilizados para filtragem e para realizar pesquisas por textos, exemplos e esboços. O usuário então navega pelos resultados tipicamente mostrados em listas de quadros-chave [18].…”