公开(公告)号：US20140146174A1

公开(公告)日：2014-05-29

申请号：US14081341

申请日：2013-11-15

Applicant: THALES

Inventor： Olivier PIGOUCHE ,  Jean-Francois BLANC ,  Christophe RENARD ,  Jean-Philippe MUR

IPC: H04N5/232 ,  H04N7/18

CPC classification number: H04N7/18 ,  H04N5/357 ,  H04N5/372 ,  H04N5/3743

Abstract: A method is provided for the real-time determination of signals to be summed from signals representative of an image portion which are respectively received from detectors belonging to the same optical sensor, the detectors being organized in a matrix formed by rows and columns, the signals to be summed being received on the same column. The method also determines the time during which the detectors must acquire the signals to be summed. The method determines a value representative of a modulation transfer function of at least one lens and/or at least one mirror placed upstream of the optical sensor, and a signal-to-noise ratio of the image portion, based on a location of one of the detectors and on a signal representative of an image portion obtained from the detectors. This representative value is dependent on the number. The method searches for the number and the time maximizing the representative value.

Abstract translation: 提供了一种方法，用于从表示属于同一光学传感器的检测器的图像部分的信号的信号中实时地确定要相加的信号，检测器被组织成由行和列形成的矩阵，信号 被归纳在同一列上。 该方法还确定检测器必须获取待求和的信号的时间。 该方法确定代表位于光传感器上游的至少一个透镜和/或至少一个反射镜的调制传递函数的值，以及图像部分的信噪比，基于 检测器和表示从检测器获得的图像部分的信号。 该代表值取决于数字。 该方法搜索数字和最大化代表值的时间。

公开(公告)号：US20170134671A1

公开(公告)日：2017-05-11

申请号：US15344753

申请日：2016-11-07

Applicant: THALES

Inventor： Olivier PIGOUCHE ,  Jean-Michel GAUCEL ,  Arnaud LIOTARD

IPC: H04N5/341 ,  G06T1/00 ,  H04N5/347 ,  H04N7/20 ,  H04N5/369 ,  H04N5/374

CPC classification number: G03B15/006 ,  B64C2201/127 ,  B64D47/08 ,  G01C11/025 ,  G06T1/0007 ,  G06T2207/10032 ,  H04N5/2258 ,  H04N5/347

Abstract: A method for the acquisition of images by a spacer airborne optical instrument, comprises the following steps: a) acquisition, by the instrument, of a first image having a first field of view including the projection on the ground of the optical axis of the instrument and delimited by a first field edge, the first image being sampled spatially with a first sampling step; b) acquisition, by the same instrument, of a second image having a second field of view not including the projection on the ground of the optical axis of the instrument and extending beyond the first field edge, the second image being sampled spatially with a second sampling step greater than the first sampling step. Space or airborne optical instruments and an image acquisition system for implementing the method are provided.