Title:
【発明の名称】撮像信号処理装置
Document Type and Number:
Japanese Patent JP2626152
Kind Code:
B2
Abstract:
In an image pickup system which is used on a craft flying over an object zone and comprises a first (photoelectric) transducer (21) for producing a first partial (electric) signal representative of a partial image of a partial zone lying forwardly of the craft flying at a first position and a second transducer (22) for producing a second partial signal representative of another partial image of the partial zone lying directly under the craft flying, an interval of time later, at a second position spaced from the first position by a distance between two partial zones packed up by the first and the second transducers when the craft is at the first position, a compression unit (90) compresses the first and the second partial signals into first and second compressed signals. A delay circuit (54-1) gives the first compressed signal a delay equal to the interval of time and produces a delayed signal. A subtracter (55-1) calculates a difference between the delayed signal and the second compressed signal and produces a difference signal. The first compressed signal and the difference signal are transmitted by a transmitter to a ground station to obtain a stereo image of the object zone. Preferably, the image pickup system should comprise a third transducer (23), another delay circuit (54-2), and another subtracter (55-2). The delay circuit is implemented by a memory.
Inventors:
Riichi Nakakura
Application Number:
JP9733190A
Publication Date:
July 02, 1997
Filing Date:
April 12, 1990
Export Citation:
Assignee:
NEC
International Classes:
H04N13/161; G01C11/02; G06T1/00; H04N1/41; H04N5/33; H04N5/335; H04N5/372; (IPC1-7): H04N7/32; G06T1/00; H04N1/41
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)