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Video segmentation and keyframe extraction are the basis of Content-based Video Retrieval (CBVR), in which keyframe selection is at the very core of CBVR. At shot level, key-frame extraction provides sufficient indexing and browsing of large video databases. In this paper, we proposed two improved approaches of key-frame extraction for video summarization.(More)
OBJECTIVE To investigate the number of myeloid-derived suppressor cells (MDSCs) in peripheral blood, tumor tissue and para-tumor normal tissues in patients with gastric cancer in an attempt to explore the relationship between MDSCs expression and clinicopathologic characteristics. METHODS Peripheral blood was collected from 62 gastric cancer patients and(More)
OBJECTIVE To investigate whether interleukin 33 (IL-33) can enhance cytokine secretion and killing activity of peripheral blood mononuclear cells (PBMCs) in vitro. METHODS PBMCs were harvested from healthy volunteers and stimulated with different combination of cytokines (CD3 mAb/CD28 mAb/IL-2, CD3 mAb/CD28 mAb/IL-2/IL-12, CD3 mAb/CD28(More)
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