CAJ | 학술논문

在基于关节臂的线激光扫描系统中，光条中心的提取精度和所用时间直接影响到整个系统的测量精度和实时响应能力。本文在国内外现有算法基础上整合改进，利用迭代阈值法、改进 Sobel 算子和光条修补算法完成光条粗提取，取中心点附近10 pixels利用灰度重心法计算光条中心精确位置。实验证明，该算法在350 mm×350 mm测量范围内，系统测量误差优于40μm，一次提取时间28 ms，确保系统35 f/s扫描频率，满足实时在线测量要求。
재기우관절비적선격광소묘계통중，광조중심적제취정도화소용시간직접영향도정개계통적측량정도화실시향응능력。본문재국내외현유산법기출상정합개진，이용질대역치법、개진 Sobel 산자화광조수보산법완성광조조제취，취중심점부근10 pixels이용회도중심법계산광조중심정학위치。실험증명，해산법재350 mm×350 mm측량범위내，계통측량오차우우40μm，일차제취시간28 ms，학보계통35 f/s소묘빈솔，만족실시재선측량요구。
In the laser scanning system based on Articulated Arm Coordinate Measuring Machine (AACMM), the extraction accuracy of laser stripe center and using time directly affects the measuring accuracy and real-time response capability of the whole system. Integration and improvement over the existing algorithms at home and abroad, an optimal threshold method and improved Sobel operator and light strip repaired algorithm are used to complete the light crude extraction with picking up ten pixels. Experiments show that, in the 350 mm× 350 mm measuring range, the measuring error is less 50μm, the extraction time is less 31 ms, and it can meet the requirements of real-time online system.