山东大学学报 (工学版) ›› 2018, Vol. 48 ›› Issue (5): 55-60.doi: 10.6040/j.issn.1672-3961.0.2018.246
Guoxin WANG1,2(),Fengdong CHEN1,Guodong LIU1,*()
摘要:
为增强三维重建过程中弱纹理目标的特征信息,提出一种基于彩色方格伪随机编码结构光的特征提取方法。设计一幅由五种彩色方格组成的伪随机编码结构光图案并将其投影到目标物体上。建立一种梯度算子模板对降采样图像中角点进行粗定位,然后进行局部非极大值抑制。将Harris算法推广到彩色多通道图像,对原图像粗定位区域进行角点检测,进而确定彩色图像中角点的精确位置。试验结果表明,在被测物体表面颜色和纹理结构均不丰富的条件下,提出的方法依然能够有效地保证特征提取的精度,具有较强的鲁棒性。
中图分类号:
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