结合多尺度图像分解技术和等高线理论提出了一种图像特征表达方法。
An approach of image feature representation that combines the multi-scale image decomposition technique and contour theory is proposed.
曲波变换是一种新的多尺度变换理论，具有各向异性的特征，可以很好地逼近含线奇异的高维函数。
Curvelet is a new multiscale transform theory, which has the characteristics of anisotropy. It can approach a high dimensional function containing line singularity better.
摘要：提出了一种融合像元-多尺度物件级特征的高解析度遥感影像道路中心线提取方法。
Abstract: a novel approach for road centerline extraction from high spatial resolution satellite imagery is proposed by fusing both pixel-based and object-based features.
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