Standardized Mobile Multimedia Query Composer

This paper presents an extension to inViPla, a video search framework designed for operation on Personal Digital Assistants (PDA). The internal query system of the original framework has been replaced with a new query engine which generates multimedia queries using the MPEG Query Format (MPQF) standard to achieve platform independence. To formulate such queries the Mobile Multimedia Composer has been developed for mobile devices. Its touchscreen-friendly user interface provides extensive search functionalities including keyword search, technical parameters and semantic concepts. Additionally, the system features an editor which lets users formulate complex multimedia queries while offering a visualization in the form of a tree structure.