An exclusively binarized method for the correlation calculation of image processing is presented with application to velocity measurements. The exclusively binarized correlation-calculation method is capable of determining the peak position of the correlation even with a small number of random-pattern images. Because the velocity is deduced from the movement of the correlation-peak position within a time interval, the method is suitable for the velocity measurement of random patterns. The method is applied to the measurement of the upper-atmospheric wind velocity by use of stellar scintillation patterns.
© 2001 Optical Society of America
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(100.2000) Image processing : Digital image processing
(120.6150) Instrumentation, measurement, and metrology : Speckle imaging
(280.7250) Remote sensing and sensors : Velocimetry
Shin Oya, Masao Takabe, and Tadashi Aruga, "Application of an Exclusively Binarized Correlation-Calculation Method to Wind Velocity Measurement by Use of Stellar Scintillation Patterns," Appl. Opt. 40, 4041-4049 (2001)