The contents in the paper include acoustic image preprocessing, feature extraction of texture and shape, and classifier design.
内容涉及声图像的预处理、纹理和形状特征的提取，以及分类器的设计等。
Shape feature extraction and description are one of important research topics in content-based image retrieval.
形状特征提取和表示是基于内容图像检索的重要研究内容之一。
The selection of features depends on the algorithm of feature extraction , and we use the 14-point ASM(Active Shape Model) in this paper.
特征的选取取决于特征提取的算法，本文采用的是14点主动形状模型。
By extraction and selection of the cell shape feature, using the least distance method and shape method primarily identify and classify the lung cell.
通过形态特征的提取和选择，利用最小距离法和形态法对肺部细胞进行了初步的识别分类。
In feature extraction, a new "blemish" model is proposed, which takes several features into account, such as the contrast, area, location, outline, shape and the luminance uniformity of the object.
在特征提取中，综合考虑了目标区域的对比度、面积、位置、轮廓、形状和亮度均匀性等特征量，建立了一种新的斑痕缺陷模型。
Feature extraction based on the histogram, texture, projection and shape of the defect images was also investigated.
研究了基于缺陷图像直方图、纹理、投影和形状的特征提取。
Based on overall analysis of apple shape, originally, the reference shape method was used in apple shape feature extraction.
首次将参考形状分析法用于果形判别，利用人工神经网络对果形进行识别和分级。
Based on overall analysis of apple shape, originally, the reference shape method was used in apple shape feature extraction.
首次将参考形状分析法用于果形判别，利用人工神经网络对果形进行识别和分级。
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