Browsing by Subject "Video indexing"

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    Automatic image captioning
    (2004) Pan J.-Y.; Yang H.-J.; Duygulu, Pınar; Faloutsos, C.
    In this paper, we examine the problem of automatic image captioning. Given a training set of captioned images, we want to discover correlations between image features and keywords, so that we can automatically find good keywords for a new image. We experiment thoroughly with multiple design alternatives on large datasets of various content styles, and our proposed methods achieve up to a 45% relative improvement on captioning accuracy over the state of the art.
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    Key frame selection from MPEG video data
    (SPIE, 1997-02) Gerek, Ömer. N.; Altunbaşak, Y.
    This paper describes a method for selecting key frames by using a number of parameters extracted from the MPEG video stream. The parameters are directly extracted from the compressed video stream without decompression. A combination of these parameters are then used in a rule based decision system. The computational complexity for extracting the parameters and for key frame decision rule is very small. As a results, the overall operation is very quickly performed and this makes our algorithm handy for practical purposes. The experimental results show that this method can select the distinctive frames of video streams successfully.