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公开(公告)号:US5790181A
公开(公告)日:1998-08-04
申请号:US601053
申请日:1996-05-01
IPC分类号: G01V8/14 , G01V8/10 , G02B13/06 , G03B15/00 , G03B37/00 , G08B13/18 , G08B13/196 , G08B15/00 , H04N5/225 , H04N5/262 , H04N7/18 , H04N7/00
CPC分类号: G08B13/19626 , G02B13/06 , G03B37/06 , G08B13/19628 , H04N5/2254 , H04N5/2628 , H04N7/18 , H04N7/183
摘要: A panoramic imaging system, for monitoring a space, comprises a single camera and a dome-like convex mirror. The camera is mounted relative to the mirror so that at least most of the surface of the mirror is within the field of view of the camera. The mirror has an elevation gain, .alpha., greater than 3 and a profile which (a) ensures that radiation from at least most of the space is reflected by the mirror onto the image plane of the camera, and (b) satisfied the relationship, in polar co-ordinates, Sin�A+0.5(1+.alpha.).theta.!=C.r.�-0.5(1+.alpha.)! where C is a constant and A specifies the inclination of the profile to the optical axis of the camera at the point on the mirror which is closest to the aperture lens of the camera. The camera may be an electronic camera having a charge coupled device (CCD) sensor at its image plane, and the processed image of the space produced by the camera may be displayed on a monitor screen as a dewarped image. A motion sensing algorithm may be included in the image processing system of the electronic camera to generate an alarm when motion is sensed in the space.
摘要翻译: PCT No.PCT / AU94 / 00501 Sec。 371日期:1996年5月1日 102(e)日期1996年5月1日PCT 1994年8月25日PCT公布。 公开号WO95 / 06303 日期1995年3月2日用于监视空间的全景成像系统包括单个相机和圆顶状凸面镜。 相机相对于镜子安装,使得镜子的至少大部分表面在照相机的视场内。 镜子具有大于3的高程增益α,以及(a)确保来自至少大部分空间的辐射被镜子反射到相机的图像平面上的轮廓,以及(b)满足关系, 在极坐标中,Sin [A + 0.5(1+ alpha)theta = Cr [-0.5(1+ alpha)]其中C是常数,A表示轮廓与摄像机的光轴的倾斜度 最靠近相机光圈镜头的镜子上的点。 相机可以是在其图像平面上具有电荷耦合器件(CCD)传感器的电子照相机,并且由相机产生的空间的处理图像可以作为杜瓦图像显示在监视器屏幕上。 运动感测算法可以包括在电子照相机的图像处理系统中,以在空间中感测到运动时产生报警。