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    Hotflashes: thumbnailing videos of social gatherings by detecting camera flash illuminated frames

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    Authors
    Sundaram, Shiva
    Velisavljević, Vladan
    Qin, Yujie
    Issue Date
    2011
    Subjects
    image sequences
    object detection
    video signal processing
    
    Metadata
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    Abstract
    Automatic annotation of video clips is desired to efficiently thumbnail user generated content available in the Internet. Automatic techniques typically focus on a selected set of inherent video features (such as scene-cut or shot boundaries) that are deemed to be salient. Along this line, the presence of camera flash light illumination is a feature of interest. This event is usually triggered manually (by a photographer) within a scene and the selected frame(s) they occur in are deemed to be interesting in the recording: for instance, the appearance of a celebrity in a party. In this paper we present a method to detect video frames that contain flashes originating from still cameras in user generated video clips. We focus on designing features for flash illumination detection using various measures of luminance change within video sequences. Using the proposed method, we obtain detection performance of approximately 89% which is 8% absolute improvement over the baseline method that uses only change in average illumination. We also illustrate a case where flashes are automatically detected in video clips of social gatherings that can be used for thumbnailing and browsing.
    Citation
    Sundaram, S., Velisavljevic, V. and Qin, Y. (2011) 'Hotflashes: Thumbnailing videos of social gatherings by detecting camera flash illuminated frames', IEEE International Conference on Multimedia and Expo (ICME), Barcelona, Spain, 11-15 July. Barcelona: IEEE, pp.1-4.
    Publisher
    IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
    URI
    http://hdl.handle.net/10547/292593
    DOI
    10.1109/ICME.2011.6012089
    Additional Links
    http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6012089
    Type
    Conference papers, meetings and proceedings
    Language
    en
    ISBN
    9781612843490
    ae974a485f413a2113503eed53cd6c53
    10.1109/ICME.2011.6012089
    Scopus Count
    Collections
    Centre for Wireless Research (CWR)

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