کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10362342 | 870706 | 2005 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effective adaptation of multimedia documents with modality conversion
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Besides content scaling, modality conversion is an important aspect of content adaptation. In this paper, we study modality conversion of a multimedia document under the constraints of available resource and human factor (user preference). We first formulate the content adaptation process of a multimedia document as a general constrained optimization problem and then extend it to effectively support modality conversion. To represent conversion boundaries between different modalities, we propose the overlapped content value (OCV) model that relates the content value of different modalities with resources. Also, the human factor is specified in the form of modality conversion preference, and then integrated into the framework by modifying the OCV model. We apply the Viterbi algorithm of dynamic programming and its fast approximation to the optimization problem with a practical resource constraint, namely the total datasize. Experiments demonstrate that modality conversion (in combination with content scaling) brings a wider range of adaptation for QoS support. Moreover, the proposed approach is shown to be effective to apply in practice.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing: Image Communication - Volume 20, Issue 5, June 2005, Pages 413-434
Journal: Signal Processing: Image Communication - Volume 20, Issue 5, June 2005, Pages 413-434
نویسندگان
Truong Cong Thang, Yong Ju Jung, Yong Man Ro,