公开(公告)号：US09992404B2

公开(公告)日：2018-06-05

申请号：US14866379

申请日：2015-09-25

申请人： Avigilon Corporation

发明人： Christopher M. Monkiewicz ,  Jamie Westell ,  Sina Afrooze

IPC分类号： H04N5/33 ,  H04N5/232 ,  G03B13/36 ,  G03B3/10

CPC分类号： H04N5/23212 ,  G03B3/10 ,  G03B13/36 ,  H04N5/332

摘要： Methods, systems, and techniques for adjusting camera focus to facilitate infrared imaging are employed to account for a difference in wavelength between visible and infrared light to permit sharp imaging regardless of whether imaging is performed using visible or infrared light. Camera focus is adjusted in accordance with base and offset values. The base value may be determined in accordance with a curve relating focus motor position and object distance and the offset value may be manually set by the user or automatically set by performing an autofocus method when the camera is operating in low light conditions.

公开(公告)号：US20160094780A1

公开(公告)日：2016-03-31

申请号：US14866379

申请日：2015-09-25

申请人： Avigilon Corporation

发明人： Christopher M. Monkiewicz ,  Jamie Westell ,  Sina Afrooze

IPC分类号： H04N5/232 ,  G03B13/36 ,  H04N5/33

CPC分类号： H04N5/23212 ,  G03B3/10 ,  G03B13/36 ,  H04N5/332

摘要： Methods, systems, and techniques for adjusting camera focus to facilitate infrared imaging are employed to account for a difference in wavelength between visible and infrared light to permit sharp imaging regardless of whether imaging is performed using visible or infrared light. Camera focus is adjusted in accordance with base and offset values. The base value may be determined in accordance with a curve relating focus motor position and object distance and the offset value may be manually set by the user or automatically set by performing an autofocus method when the camera is operating in low light conditions.

摘要翻译： 采用用于调整相机焦点以促进红外成像的方法，系统和技术来考虑可见光和红外光之间的波长差异，以允许清晰的成像，而不管使用可见光或红外光是否进行成像。 相机对焦是根据基准和偏移值进行调整的。 可以根据关于焦点电机位置和对象距离的曲线来确定基值，并且可以由用户手动设置偏移值，或者当照相机在低光条件下操作时通过执行自动聚焦方法自动设定。