...二次采样 双目视觉 [gap=2581]KEY WORDS：human face scanning, three-line structured light, sensor calibration, resampling, binocular vision ...
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【Key words】 heterodyne balanced receiver； beam-slipper coefficient； stochastic resonance； frequency shifting； twice sampling；
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We realized the high frequency examination of stochastic resonance and analyzed the advantages and disadvantages of the two methods. Then we proposed that high frequency weak signal can be detected using the technology of twice sampling and frequency deviation.
采用二次采样与频移技术实现随机共振高频检测,具体分析两种方法的优点和缺点。
参考来源 - 平衡式外差接收及随机共振微弱信号检测·2,447,543篇论文数据，部分数据来源于NoteExpress
通过骨架对裂缝二次采样，沿骨架点切线方向的垂线方向求出相应的宽度。
The crack is re-sampled by the skeleton and calculate via vertical direction of the tangent direction of the point on skeleton.
对非线性修正问题，目前常用的有光程差替换法、干涉图二次采样法和NUFFT法。
Three methods of correction for the nonlinear OPD were described and compared in this paper, namely NUFFT method, OPD replace method and interferograms fitting method.
本文对超声检测中常遇到的变采样问题进行讨论，比较了两种实现方法：基于特征值的二次采样和滤波器组，并给出了二次采样算法。
In the paper, we discuss the variable sampling in ultrasonic testing, and compare two techniques, i. e., the resampling arithmetic and the filter group.
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