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|Title:||Height measurement of microchip connecting pins by use of stereovision|
|Authors:||Tay, C.J. |
|Source:||Tay, C.J.,Kang, X.,Quan, C.,He, X.Y.,Shang, H.M. (2003-07-01). Height measurement of microchip connecting pins by use of stereovision. Applied Optics 42 (19) : 3827-3831. ScholarBank@NUS Repository.|
|Abstract:||A stereovision method for estimating the height of connecting pins on a microchip is described. The technique uses a centroidal method to simplify the calculation. A few seconds are required for a Pentium 586 PC to calculate the heights of 300 connecting pins on a 50 mm × 50 mm microchip. The method is described, and experimental results are presented. The optical system, which consists of two CCD cameras with long-focal-length lenses and a two-channel digital image grabber, is capable of in situ measurement. © 2003 Optical Society of America.|
|Source Title:||Applied Optics|
|Appears in Collections:||Staff Publications|
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