Based on the study of the influence of the quantification noise and the gray level noise on target feature image, the error model of the target feature image centroid coordinates is built.
深入研究了灰度噪声、量化噪声对目标特征图像的影响及其误差模型，并由此建立了目标特征图像质心坐标提取误差模型。利用仿真试验分析了灰度噪声、量化噪声导致的航天器间相对状态参数测量的误差分布。
Taking the Brownian dimension as their texture feature, image blocks were clustered and sorted, to control the number of domain blocks to be compared with each range block in coding.
以图像的布朗维数为纹理特征对编码中的图像块进行聚类和排序，实现了对每个值域块所需比较定义域块数目的精确控制。
Conclusion: The correct diagnosis of SPT depends on comprehensive analysis of clinical feature, image and histopathologic characteristic.
结论：SPT的正确诊断依赖于临床表现、影像学特征，尤其是病理学检查的综合分析。
Conclusion: The correct diagnosis of SPT depends on comprehensive analysis of clinical feature, image and histopathologic characteristic.
结论：SPT的正确诊断依赖于临床表现、影像学特征，尤其是病理学检查的综合分析。
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