以下为句子列表：
英文: A new image sampling method and a device for transmission flow measuring are provided, and an edge detection method based on the semantic weight and threshold selection tactics based on the vision model are used to extract the contour, calculate the area
中文: 设计了一种新型的用于传输流量检测的图像采集方法和装置，并利用基于语义权值的边缘提取方法和基于视觉模型的阈值选择策略进行传输带上物质的截面轮廓线提取，计算物质截面面积和较短时间内的流量体积。
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英文: Abstract: The image of arc zone of flux-cored underwater wet welding was developed with underwater CCD camera system and composed filter technology.The discussion is mainly focused on the theory of edge detection.An image edge detection method based on me
中文: 文摘:通过复合滤光技术和水下CCD摄像系统，采集出了药芯焊丝水下湿法焊接电弧区域图像，重点论述了边缘检测理论，确定了基于中值滤波和梯度算子的电弧区域图像边缘检测方法，有效地区分了电弧燃烧区域和电弧气泡区域，从而为水下湿法焊接电弧的机理分析及水下焊接过程控制奠定了基础。
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英文: Abstract: Zero-crossing edge detection method was analyzed.
中文: 文摘:讨论二阶导数过零边缘检测方法。
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英文: According to the feature of pileup-pellets image, a method of edge detection based on wavelet transform is presented.
中文: 摘要以堆积球团矿图像为背景，研究了一种基于小波变换的堆积小球边缘检测方法。
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英文: According to the properties of glass defect image, a image segmentation method of edge detection based on optimum threshold is presented in this paper.
中文: 摘要根据玻璃缺陷的特点，提出一种采用迭代最优阈值与数学形态学相结合的方法对玻璃缺陷图像进行分割。
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