提出了一种改进的基于区域的形状索引的图象检索方法。
We propose a low-dimensional region-based shape index to retrieve images.
针对二值图象提出了一种基于区域的形状特征，即距离分布直方图。
The basic idea is to get shape feature by calculating the distribution of pixels in different distance regions.
传统上，用计算机进行人脸识别是基于局部区域的特征例如眼睛、鼻子的形状，或者嘴巴宽度等。
Traditionally, computer face recognition is based on such factors as the characteristics of the eye region, the shape of the nose, or the width of the mouth.
日冕的形状可以使用基于观测太阳表面活动频繁区域的先进技术准确地预报。
The shape of the corona can be accurately predicted in advance with calculations based on the observed surface magnetic field.
运用形状分析理论，提取了基于区域和基于轮廓的平面赤足迹形状特征参数。
Morphological features based on regions and contour curves of planar footprint are extracted by utilizing image analysis theory.
基于边界的傅立叶变换是一种重要的形状描述方法，其只利用了图像的边界信息，而忽略了图像的区域信息。
The edge Fourier transform is an important shape descriptor, but it makes use of only the image edge information ignoring the image region information.
研究了基于整数到整数形状自适应离散小波变换对任意形状感兴趣区域的有损和无损编码技术。
Arbitrary shape region of interest lossily and losslessly coding technology based on integer-to-integer shape adaptive discrete wavelet transform has also been studied.
采用传统图像检测方法存在目标区域定位不准确、目标细节信息丢失、目标形状变形等问题，本文提出一种基于离散分数布朗随机场模型的水下图像目标检测方法。
To overcome the shortcomings of traditional methods, a method of underwater image segmentation based on the discrete fractional Brownian random field was proposed to dispose underwater images.
本文分析了形状作为目标的一种固有特征的各种表达方法，并从基于区域和基于边界两个方面讨论了形状的各种描述方法。
This paper analyzes several expressions about shape as an inhere character of objects, and discusses each description of shape based on area and edge.
在基于等高线建立的数字高程模型TIN中，由平坦三角形连接成的平坦区域不能真实地反映地表的真实形状，需要进行适当地修正。
IN TIN of digital elevation model constructed from contours, flat areas which are made up of flat triangles can not reflect the real shape of the surface, so that they need be corrected properly.
设计了一种基于区域划分的分形图像压缩方法，这种方法根据拼贴误差最小原则合并相邻子区域对，将图像划分为一些具有局部自相似性的不规则形状区域。
A method of the fractal image compression based on region partition is designed, which is used to merge the neighboring sub-regional pairs according to the principle of the least collage errors.
因此提出了基于人眼视觉特性的任意形状区域丢失图像信息的重建模型。
The reconstruction model for the lost image information of the arbitrary-shape area based on the human visual characteristics is put forward.
与已有的基于感兴趣区域的检索方法相比，该方法很好地利用了感兴趣区域的空间信息，采用多分辨率检索思想，能够有效地对不同大小任意形状的物体进行检索。
Compared with existing ROI-based image retrieval approaches, it makes use of space information of ROI and multi-resolution retrieval concept, is able to query shape-free and any size objects.
其次，本文研究了区域形状特征提取及基于PCA的特征选择方法，通过对区域特征进行优化选择，构造准确描述目标特性且维数较低的特征。
Secondly, the method of region feature extraction and optimal feature selection are studied based on PCA, and the effective features are constructed for the target by the analysis of the PCA.
首先提出了一种支持向量机分割嘴唇区域的方法，并基于口型模板提取描述嘴唇形状的特征参数。
The method employing support vector machine to segment mouth from face image was presented, and the characteristic parameters were extracted according to the lip template and moving lip feature.
通过基于纹理的图像分割算法对图像进行区域分割，实现对分割区域颜色特征和形状特征的提取。
The image partition algorithm used in this system is based on the grain characteristics and edge characteristics, and is designed by ourselves.
通过基于纹理的图像分割算法对图像进行区域分割，实现对分割区域颜色特征和形状特征的提取。
The image partition algorithm used in this system is based on the grain characteristics and edge characteristics, and is designed by ourselves.
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