An Optimized Detection Method of Electronic Shear Speckle 3CCD Sensing Image Feature Denoising
Aiming at the problem of poor quality and detection effect of shearing speckle pattern due to high speckle index and low peak signal to noise ratio of electronic shearing speckle interference image acquired by CCD(Charge coupled Device)optical sensor,an opti-mized detection method for feature denoising of 3CCD sensing image of electronic shearing speckle is proposed.The reason of the problems caused by the electronic shearing speckle technique in the surface deformation detection of three-dimensional objects are analyzed.The 3CCD image sensor is used instead of the single CCD image sensor.The homomorphic filtering noise reduction processing image is intro-duced,and a phase interferometry technique is designed,which is combined with the Canny detection algorithm to achieve the optimal de-tection of electronic shearing speckle denoising.The experimental results show that the electronic shear speckle intelligent detection meth-od using 3CCD sensor and denoising technology has lower image speckle index,higher peak signal-to-noise ratio and shorter detection time,which are 0.023 4,19.5 dB and 16.2 ms respectively.The surface deformation measurement error of three-dimensional objects is within 0.09 mm,indicating that the method effectively improves the image quality and thus improves the practical application value.
国家科技期刊平台
NSTL
万方数据
