| 摘要 |
PURPOSE:To simply measure a distance to a target by providing an image pickup function, and a measuring function of an angle of tip in a visual field at the time of image pickup and a depression/elevation angle to a visual field of the horizon in an image pickup picture plane and the target of the surface of the earth. CONSTITUTION:An image processing part 3 executes a detection of the horizon, a measurement of an angle of tip based on a visual field azimuth of its detected horizon as a reference, and a measurement of the angle of tip based on a visual field azimuth of a designated target as a reference. The horizon angle of tip calculating part 5 calculates the angle of tip on the horizon from a visual field azimuth angle signal inputted from a visual field azimuth control detecting part 4, and the signal of the angle of tip on the horizon based on a visual field azimuth inputted from the processing part 3 as a reference. A target angle of tip calculating part 6 calculates the angle of tip at a designated target from a signal inputted from the detecting part 4, and the signal of the angle of tip at the designated target based on a visual field azimuth inputted from the processing part 3 as a reference. A target distance calculating part 7 calculates a distance to the designated target from signals of the calculating parts 5, 6.
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