Researched the reason why PV interpolation may lead to wrong registration, and suggested to reduce gray levels to avoid the problem.

研究了PV插值法导致错误配准的原因，提出了通过调整灰度级数来避免。

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It introduces the method to measure the length of black lead in gray cast iron by digital graphics technology. The strip black lead can be classified.

介绍了一种利用数字图像处理技术进行灰铁金相石墨测长的方法，用于检测灰口铸铁金相中的条状石墨长度，并对其进行分级。

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Ronald Gray of Johns Hopkins was a lead investigator.

霍普金斯大学的罗纳德是牵头研究研究员。

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Ronald Gray of Johns Hopkins was a lead investigator.

VOA: special.2009.04.01

Forest's Wes Morgan headed over the bar and Barnsley doubled their lead when Gray headed in Kieran Trippier's cross.

BBC: Sport - Football - Nottm Forest 2-2 Barnsley

Undulating paths lead through 2, 700 gray columns of varying height, making a visit to the memorial a suitably unsettling experience.

CNN: Berlin: What to see

The home side took the lead when Andy Burgess and Stuart Gray combined to find Duane Darby.

BBC: Diamonds win title