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yi zhong wei xie jian ce de gai jin tou ying ying she suan fa ji qi ying jian shi xian
Author(s): 
Pages: 1294-1296+1300
Year: Issue:  5
Journal: Computer Measurement & Control

Keyword:  TMS320DM642camera-typeskew detectionprojection mapping;
Abstract: 对于织物纬斜检测问题,提出了一种基于DFT与投影映射的纬斜检测算法;该算法将织物图像傅里叶变换的频谱图进行二值化和形态学滤波,以消除噪声点,然后在横轴上进行多角度投影映射得到织物纬斜量,克服了噪声对检测精度的干扰;同时,文章设计了基于DSP+FPGA的摄像式整纬器检测装置硬件系统,充分利用了DSP的高速数据处理能力及FPGA的强大逻辑控制功能,实现控制与运算的分离,并将文章所提出的纬斜检测算法在该硬件系统中验证;实验结果表明,该系统能够实时地对织物纬斜进行检测,测量误差在0.5度以内,纬斜检测精度高,具有一定的应用价值。
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