Heejung Lee

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Video streams can be compressed to fit the available network by controlling three factors; temporal resolution, spatial resolution and picture quality. Controlling picture quality by modifying the quantization parameter (QP) is most widely used. But we demonstrate that reducing the spatial resolution is more effective in a low bit-rate environment, and we(More)
Hybrid knowledge model is suggested as an underlying framework for product development management. It can support such hybrid features as ontologies and rules. Effective collaboration in product development environment depends on sharing and reasoning product information as well as engineering knowledge. Many studies have considered product information and(More)