Pseudo color measuring of the infrared radiation from molten pool is used to gather information on the seam position and on the welding penetration. Characteristics are detected using color sensing devices. Test resul...Pseudo color measuring of the infrared radiation from molten pool is used to gather information on the seam position and on the welding penetration. Characteristics are detected using color sensing devices. Test results from both thermal simulation and robotic arc welding are regular and reproducible. The pseudo color values were found to be directly relative to the seam position and welding penetration, therefore, they could be used for monitoring welding penetration and for seam tracking.展开更多
文摘Pseudo color measuring of the infrared radiation from molten pool is used to gather information on the seam position and on the welding penetration. Characteristics are detected using color sensing devices. Test results from both thermal simulation and robotic arc welding are regular and reproducible. The pseudo color values were found to be directly relative to the seam position and welding penetration, therefore, they could be used for monitoring welding penetration and for seam tracking.
文摘针对量子图像增强问题,提出一种基于彩虹编码的量子图像伪彩色增强方法。首先,使用NEQR(Novel Enhanced Quantum Representation)模型表示灰度图像,接着设计和优化RGB三通道颜色转换模块的量子线路,最后用QRMW(Quantum Representation of Multi Wavelength Images)模型表示伪彩色图像。为了验证所提方法的有效性,在IBM量子计算框架Qiskit上制备2×2大小与32×32大小的NEQR灰度图像,通过对量子线路测量坍缩后生成对应大小的QRMW伪彩色图像。实验结果表明,与经典和已有的量子图像伪彩色增强方法相比,该方法在处理大小为2n×2n、色深为2q的图像时,所需的量子基本门个数为958,时间复杂度仅为常数级O(1),空间复杂度为O(2n+2q+3),显著降低了量子成本,并且处理后图像的信息熵和清晰度指标良好。
