Learning View-Model Joint Relevance for 3D Object Retrieval

3D object retrieval has attracted extensive research efforts and become an important task in recent years. It is noted that how to measure the relevance between 3D objects is still a difficult issue. Most of the existing methods employ just the model-based or view-based approaches, which may lead to incomplete information for 3D object representation. In this paper, we propose to jointly learn the view-model relevance among 3D objects for retrieval, in which the 3D objects are formulated in different graph structures. With the view information, the multiple views of 3D objects are employed to formulate the 3D object relationship in an object hypergraph structure. With the model data, the model-based features are extracted to construct an object graph to describe the relationship among the 3D objects. The learning on the two graphs is conducted to estimate the relevance among the 3D objects, in which the view/model graph weights can be also optimized in the learning process. This is the first work to jointly explore the view-based and model-based relevance among the 3D objects in a graph-based framework. The proposed method has been evaluated in three data sets. The experimental results and comparison with the state-of-the-art methods demonstrate the effectiveness on retrieval accuracy of the proposed 3D object retrieval method

Robust estimation of bacterial cell count from optical density

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Impact of packaging revolution on China's dairy product industry

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Melatonin-mediated cytoprotection against hyperglycemic injury in Müller cells.

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High glucose-induced upregulation of melatonin receptors in Müller cells.

<p>(A) Immunostaining of MT1 and MT2 in cultured primary rat Müller cells. Nuclei were counterstained with SYTO green, Scale bar = 20 µm. (B) High glucose-induced mRNA expression of both melatonin receptors. Cells were treated with 30 mM glucose for 24 and 48 hr. MT1/MT2 expression was measured by Real-time RT-PCR and normalized to β-actin mRNA. CTL: untreated control; Mann: 24.5 mM mannitol as osmolarity control. (C) Western blot of MT1/MT2 proteins in Müller cells treated with high glucose. (D) Quantification data from the Western blots after normalizing to β-actin. Data presented are the average from 3 to 5 separate experiments (mean ± SD). *P<0.05, **P<0.01, as determined by either one-way ANOVA (B) or Student’s t-test (D).</p

Primer sequences for RT-PCR analyses.

<p>Primer sequences for RT-PCR analyses.</p