基于数字图像处理的水中微气泡参数的测量

Parameter measurement of micro-bubbles in water based on digital image processing

对实验室条件下拍摄到的气泡图像进行了一系列的图像处理操作,得到了较为清晰的气泡图像。继而应用扫描法测量气泡的直径,用粒子跟踪测速法(PTV)测量稀疏气泡的运动速率,用粒子图像测速法(PIV)测量高密度气泡的运动速率。以上方法均得到了相应的测量结果,为工业上对微气泡的测量提供了一定的参考。

The bubble images taken from laboratory condition became clear bubble images after a series of image pro cessing operations. The scanning method is used to measure the diameters of the bubbles. Particle Track Velocimetry （PTV） is used to measure the velocity of the sparse bubbles. Particle Image Veloeimetry（PIV） is used to measure the velocity of the high density of bubbles. All the above methods have got the corresponding measurement results. That provides a reference for the measurement of microbubbles in industry.