公开(公告)号：US20040130651A1

公开(公告)日：2004-07-08

申请号：US10740758

申请日：2003-12-22

Applicant: PENTAX Corporation

Inventor： Shigeru Wakashiro

IPC: H04N005/232

CPC classification number: A61B1/00188 ,  G02B23/2407 ,  H04N5/23212 ,  H04N2005/2255

Abstract: An automatic focusing apparatus includes an image pickup optical system; an image pickup device for converting an optical image formed by the image pickup optical system into an electric image signal at a predetermined cycle and outputting the electric signal; a focusing device; an optical flow calculation device for calculating optical flows in accordance with the image signals in a first image plane at a first time and a second image plane at a second time different from the first time, and for calculating an average of magnitudes and directions of the optical flows; and a judgment device for determining whether or not the focusing device is to be driven in accordance with calculated average of the magnitudes and the directions of the optical flows.

Abstract translation: 一种自动对焦装置，包括摄像光学系统; 图像拾取装置，用于将由图像拾取光学系统形成的光学图像以预定周期转换成电图像信号并输出​​电信号; 聚焦装置; 光流计算装置，用于根据第一时间的第一图像平面中的图像信号和与第一时间不同的第二时间的第二图像平面计算光流，并且用于计算第一时间的平均值和方向的平均值 光流; 以及判断装置，用于根据计算出的光流的大小和方向的平均值来确定聚焦装置是否被驱动。

公开(公告)号：US20040150816A1

公开(公告)日：2004-08-05

申请号：US10761230

申请日：2004-01-22

Applicant: PENTAX Corporation

Inventor： Shigeru Wakashiro ,  Atsumi Kaneko ,  Masami Shirai ,  Kiyoshi Yamamoto

IPC: G01J001/10

CPC classification number: G01C11/00

Abstract: A target, which is photographed with an object at a spot for a photogrammetric analytical measurement, includes a first bar and a second bar that are connected to each other; at least three standard point members, lying on one plane, and fixed on the first bar and the second bar; and non-reflecting members that are respectively attachable to and removable from said at least three standard points. The at least three standard point members may respectively include a circular portion, a diameter of which substantially equals a width of the first bar and the second bar. Each of the non-reflecting members includes a circular plate defining a circular opening, a diameter of which substantially equals the diameter of the circular portion of the three standard point members.

Abstract translation: 用于摄影测量分析测量的现场用物体拍摄的目标包括彼此连接的第一杆和第二杆; 至少三个标准点构件，位于一个平面上，并固定在第一杆和第二杆上; 以及分别可附接到所述至少三个标准点和从所述至少三个标准点移除的非反射部件。 至少三个标准点构件可以分别包括圆形部分，其直径基本上等于第一杆和第二杆的宽度。 每个非反射构件包括限定圆形开口的圆形板，其直径基本上等于三个标准点构件的圆形部分的直径。