查询词典 segmentation-cavity

Aiming at the deficiency of the current fingerprint segmentation method at pixel and the segment limitation of the linear classifier, a new method of segmentation based on quadric surface model is proposed.

文中分析了指纹的前景点和背景点在指标CMV(C指像素点的方向一致性、M是像素点的平均灰度、V是像素点的平均灰度方差)下的空间分布特点，发现该空间下的指纹前景和背景区域具有线性不可分性，使用线性分类器进行分类具备一定局限性。

The road network segmentation results show that the improved B-spline Ribbon Snake can obtain a more accurate and smoother segmentation and is more robust to noise.

从改进的B样条Ribbon Snake的道路网分割结果可以看出，分割的结果更加平滑，精度更高，对噪声具有更好的鲁棒性。

Plate segmentation and character segmentation is the most issential parts of self-driven recognition.

而车牌分割和字符分割是自动识别的关键和首要步骤。

Author has studied many kinds of video segmentation algorithms, and suggests an algorithm of semiautomatic video segmentation based on characteristics of visual to improve other algorithms.

在对MPEG－4标准分析的基础上，研究了一种可以降低视频分割难度的MPEG－4实现模型。

It can automatically differentiate and pick-up available information of the original image, such as area and perimeter, by image processing and segmentation; may semiautomatically measure the location of a spot on the image, the length of lines, area size; may automatically detect distances between edges by edge detection; at the same time have common functions of minitype image processing software, such as addition or subtract of images, morphological processing and image segmentation.

通过图像处理与分割，自动判别、提取原图像中感兴趣目标的信息，例如面积、周长等；通过对图像的形态处理，可以半自动的测量图像中点的位置、线段长度、面积大小，并做出标记；通过边缘检测，可以自动检测出边缘之间的距离等；同时具有小型图像处理软件通用的功能，如图像相加、减，形态处理，图像分割等。

The result of this experiment showed that expected segmentation result could be achieved by using BP network method. After taking further processing such as picking up bigger areas, erosion and dilation, etc., the result could be better. Moreover, if the teacher signals were changed, the image segmentation of peduncle or sepal could be realized easily.

试验结果表明，利用BP神经网络能较好地实现成熟草莓果实与背景的分离，经过提取大区域和腐蚀、膨胀等算法的进一步处理后，效果更好；而且，只要改变训练时的教师信号，即可实现对草莓果梗、萼片等图像的分割。

In accordance with chaotic essence of speech signals , syllable segmentation in continuous speech is researched by fractal theory . an approach of syllable segmentation using variance fractal dimension is proposed , its performance is analyzed in detail . the method can discriminate between voiced and unvoiced , between surd and sonant , but it can hardly discriminate between sonant

本文根据语音信号的混沌本质，利用分形理论研究了汉语连续语音中的音节分割问题，提出了基于方差分形维数的音节分割方法，并详细分析了该方法的性能，它能很好地解决了无声与有声、浊音与清音间的分割问题，但很难解决浊音间的分割问题，当浊音相连且过渡段较短时，该方法无法实现它们之间的分割。

Based on the disparate characteristics in multi-scale fractal dimension between the stable phonemes and their transient region, a simple and effective Initial/Final segmentation method is developed, not only with high performance in sonant Initial and zero Initial segmentation cases but also with high adaptability without any parameter training or threshold setting.

在此基础上，利用稳定声韵母段及其之间过渡段在多尺度分形维数上的不同特性设计了一种简单而高效的汉语语音声韵母切分方法。

The study can be useful for the selection of segmentation methods for soot image segmentation.

研究结果对烟尘图像分割中算法的选型具有一定的参考价值。

As an important component among information acquisition methods, the requirement for high quality auto-summarization system also becomes more urgency. To fulfill this requirement, an adapted Dotplot methods based on word sense quantization model is firstly provided to address the problem of subtopic segmentation. Then a multi-knowledge-sources-integrating model is constructed, which combines the results of rhetorical structure analyse, text content structure analyse and subtopic segmentation together and provides clues for abstract sentences extracting.

第四，互联网的普及增加了人们对信息获取速度、准确率的要求，也推动了人们对自动文摘系统的需求，为了进一步改进现有文摘技术，本文首先研究了基于语义量化模型的改进Dotplot隐式章节划分算法，然后通过加权有向图来构造了一个多知识源融合模型，模型能够融合文本修辞结构分析、内容层次结构分析以及隐式章节划分等多种知识源的分析结果，并以此为基础建立文摘语句的抽取算法。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。