Image pickup system with an image pickup device for control
First Claim
1. An image pickup system mounted on a craft which is located above an object zone and flies along an orbit having a predetermined positional relation with said object zone, said system comprising:
- a main image pickup device for sequentially picking up the images of unit areas defined by a predetermined swath width of said object zone and a distance in the direction of flight of said craft; and
a control image pickup device for detecting a radiance distribution of a forward area preceding said unit areas which sequentially enter the visual field of said main image pickup device due to the flight of the craft, before the unit area of interest enters said visual field; and
wherein said control image pickup device comprises;
means for comparing predetermined reference values defining a radiance distribution associated with said unit areas and a detected value of radiance distribution of said forward area; and
a data processing section for controlling said main image pickup device in response the result of comparison.
2 Assignments
0 Petitions
Accused Products
Abstract
An image pickup system mounted on a craft flying an orbit above an object zone and sequentially picking up the images of unit areas defined by the swath width of the object zone and a distance in the direction of orbit. The system has a main image pickup device and a control image pickup device for picking up the image of an area ahead of the visual field of the main pickup device, i.e., a forward area preceding the unit area. While the craft flies along the orbit, the control image pickup device detects the radiance distribution of the forward area to thereby control, for example, the sensitivity of the main image pickup device. To detect the radiance distribution, a data processing section included in the control pickup device converts data picked up in the forward area to an image to allow the image to be compared with predetermined reference values.
103 Citations
9 Claims
-
1. An image pickup system mounted on a craft which is located above an object zone and flies along an orbit having a predetermined positional relation with said object zone, said system comprising:
-
a main image pickup device for sequentially picking up the images of unit areas defined by a predetermined swath width of said object zone and a distance in the direction of flight of said craft; and a control image pickup device for detecting a radiance distribution of a forward area preceding said unit areas which sequentially enter the visual field of said main image pickup device due to the flight of the craft, before the unit area of interest enters said visual field; and wherein said control image pickup device comprises; means for comparing predetermined reference values defining a radiance distribution associated with said unit areas and a detected value of radiance distribution of said forward area; and a data processing section for controlling said main image pickup device in response the result of comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification