该图像描述模型通过在不同层次上对图像内容进行分析和描述，实现了从低级特征到高级语义的过渡。

In this image description model, image contents could be analyzed and represented through different levels and the transition from low-level features to high-level semantics is thus achieved.

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提出了一种将图像本身的低级特征和语义特征描述相结合的医学图像检索方法。

In this paper, a new medical image retrieval approach based on low level features and semantic features is proposed.

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