SIFT has proved to be the most robust local invariant feature descriptor in object recognition and matching.
目前，SIFT已经被证明鲁棒性最好的局部不变特征描述符。
A novel image texture feature descriptor is proposed which is insensitive to Gaussian blur and Gaussian noise.
提出了一种对高斯模糊和高斯噪声鲁棒的图像纹理特征描述算子。
This file is the feature descriptor, containing the feature ID, label, description, the ID of the plug-in, and copyright and license descriptions as shown in listing 2.
此文件是功能描述符，包含功能ID、标签、描述、插件的ID、以及版权和许可描述，如清单2所示。
And the image feature descriptor has a rotation, translation, scaling invariance, etc. it can be a very good to describe the shape and spatial distribution of information.
且获得的图像特征描述符具有旋转、平移、尺度不变性等优点，能够很好地描述图像的形状和空间分布信息。
This paper introduces the definition of the content-based image retrieval and the visual description tools of MPEG-7, and analyzes the application of the feature descriptor.
介绍了基于内容的图像检索的定义以及MPEG - 7中的视觉描述工具，分析了特征描述符的应用。
This paper introduces the definition of the content-based image retrieval and the visual description tools of MPEG-7, and analyzes the application of the feature descriptor.
借助于颜色游程的概念，提出了一种基于游程矩阵的彩色图像特征描述方法，并在此基础上定义了两种图像相似性测度。
After that, the new idea of average moments of these feature points is proposed. This feature descriptor has good robustness and is not so sensitive to noise and the delicate changes in image's edges.
然后提出了基于多特征点平均矩特征的概念，该特征不仅具有良好的鲁棒性，而且对于噪声以及图像边缘的细微变化并不敏感，非常适合用来描述商标这种特定的图像。
Experiments demonstrated that the color block co-occurrence matrix descriptor considerably improves the retrieval performance and can combine the feature of color and texture effectively.
实验结果表明，彩色子块共生矩阵描述子能够有效地结合颜色和纹理特征，具有良好的检索性能。
This paper discusses a simple method of SIFT operator, operator is simplified greatly reduces the dimensions of feature point descriptor is compared with the original operator.
本文讨论了一种SIFT算子的简化方法，简化后的算子与原算子相比大大降低了特征点描述子的维度。
In addition, the protein can be represented as other feature vectors based on amino acid composition (AAC), weighted auto-correlation function and Moment descriptor methods.
另外，蛋白质序列还可用其它特征提取方法提取的特征向量来表示，如氨基酸组成成分、加权自相关函数和矩描述子。
The circular region F-norms in low frequency band of wavelet transform is used as color feature of the image and the energy ratio of high frequency band is used to form texture descriptor.
颜色特征采用整数小波低频系数矩阵中环形区域的F -范数，纹理特征则采用高频部分的能量比值。
On the other hand, it can describe the characteristic of boundary and some geometry feature of the region, so this new region descriptor value is worthy to further research.
另一方面可以用形态编码来描述边界点的特性，进而来描述整个区域的部分几何特性。
On the other hand, it can describe the characteristic of boundary and some geometry feature of the region, so this new region descriptor value is worthy to further research.
另一方面可以用形态编码来描述边界点的特性，进而来描述整个区域的部分几何特性。
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