id: 06066516
dt: a
an: 06066516
au: Hu, Rui; James, Stuart; Collomosse, John
ti: Annotated free-hand sketches for video retrieval using object semantics and
    motion.
so: Schoeffmann, Klaus (ed.) et al., Advances in multimedia modeling. 18th
    international conference, MMM 2012, Klagenfurt, Austria, January 4‒6,
    2012. Proceedings. Berlin: Springer (ISBN 978-3-642-27354-4/pbk).
    Lecture Notes in Computer Science 7131, 473-484 (2012).
py: 2012
pu: Berlin: Springer
la: EN
cc: 
ut: 
ci: 
li: doi:10.1007/978-3-642-27355-1_44
ab: Summary: We present a novel video retrieval system that accepts annotated
    free-hand sketches as queries. Existing sketch based video retrieval
    (SBVR) systems enable the appearance and movements of objects to be
    searched naturally through pictorial representations. Whilst visually
    expressive, such systems present an imprecise vehicle for conveying the
    semantics (e.g. object types) within a scene. Our contribution is to
    fuse the semantic richness of text with the expressivity of sketch, to
    create a hybrid ‘semantic sketch’ based video retrieval system.
    Trajectory extraction and clustering are applied to pre-process each
    clip into a video object representation that we augment with object
    classification and colour information. The result is a system capable
    of searching videos based on the desired colour, motion path, and
    semantic labels of the objects present. We evaluate the performance of
    our system over the TSF dataset of broadcast sports footage.
rv: