公开(公告)号：US20150198716A1

公开(公告)日：2015-07-16

申请号：US14595369

申请日：2015-01-13

Applicant: Pebbles Ltd.

Inventor： Nitay ROMANO ,  Nadav GROSSINGER ,  Emil ALON ,  Yair ALPERN

IPC: G01S17/06 ,  G01S7/48 ,  G06F3/01

CPC classification number: G01S17/06 ,  G01B11/25 ,  G01S7/48 ,  G01S7/481 ,  G01S17/48 ,  G01S17/89 ,  G06F3/011 ,  G06F3/017 ,  G06F3/0304 ,  G06T7/521

Abstract: A detector for optical detection of location within a volume, comprises a beam source for shining a structured light pattern on the volume and a digital detector having detection pixels of a given size. The light pattern, when shone into the volume and reflected back to the detection pixels, has a brightness distribution with a peak and a surrounding brightness structure. Now often the peak may be smaller than the pixel size although the overall distribution of the brightness extends over multiple pixels. The system includes an electronic processor for assessing a distribution of brightness among the neighbouring pixels to infer a location of the peak within a region smaller than the size of the central pixel on which it falls, thus giving sub-pixel resolution.

Abstract translation: 用于光学检测体积内的位置的检测器包括用于照射体积上的结构化光图案的光束源和具有给定尺寸的检测像素的数字检测器。 当光线照射到体积中并反射回检测像素时，光图案具有峰值和周围亮度结构的亮度分布。 现在通常，峰值可能小于像素大小，尽管亮度的整体分布在多个像素上延伸。 该系统包括用于评估相邻像素之间的亮度分布的电子处理器，以推断在小于其下降的中心像素的尺寸的区域内的峰的位置，从而给出子像素分辨率。