Preprocess includes image segmentation, image enhancement, image binarization and thinning.
具体包括指纹图像前背景分割、图像增强、二值化、细化等几个部分。
参考来源 - 指纹配准和自动识别的实现The first one is improper image pre-processing, such as segmentation, normalization and thinning, which lose the features of letters relationship and strokes.
其一是图像预处理方法不当,在字符切分、大小归一化、倾斜校正以及签名图像的细线化时会丢失签名特征。
参考来源 - 离线签名验证技术的研究However the material strength coefficient has little effect on the wall-thickness thinning-rate.
但材料强度系数对壁厚变薄率无显著影响。
参考来源 - 薄壁管数控弯曲成形壁厚变薄的数值分析In this paper, we propose a two-dimensional risk model with thinning dependent structure and three different types of ruin probabilities are defined.
本文引入了一个含稀疏相关结构的二维风险模型,并基于此模型定义了三类不同的破产概率。
参考来源 - 含稀疏相关结构的二维风险模型Besides these, they have good properties of shear thinning and recoverability. All of these facts directly make clear the existence of association and its reversibility, and indirectly verify the existence of the networks in solution.
此外，该磺酸盐还具有良好的剪切稀释性和剪切恢复性，结果充分验证了缔合结构的存在及其可逆性。
参考来源 - 疏水缔合聚合物磺酸盐的合成及性能评价·2,447,543篇论文数据，部分数据来源于NoteExpress
Oil-absorptive material from Chinese fir thinnings are developed and its absorptive effects are also studied.
研制出了杉木间伐材炭化物吸油材料，同时对其吸油能力的影响作了研究。
Plywood, and particularly plywood made from underutilized forest thinnings, is an excellent construction material.
胶合板，特别是由未经开发的细木材制成的胶合板，是一种绝佳的建筑材料。
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