Apparatus for photographing moving body
First Claim
1. An apparatus for photographing a moving body, comprising:
- a camera for repeatedly photographing a capture zone, said capture zone being provided on a downstream side along an advancing direction of said moving body as viewed from a detection position;
a memory, which has a plurality of memory areas being capable of storing images obtained by a plurality of times of photographing operations, for sequentially storing the images obtained by repetition of photographing;
a time detector for detecting a time at which said moving body passes said detection position;
a speed detector for detecting a speed at which said moving body passes said detection position; and
an image selector for selecting at least one from a plurality of stored images on the basis of the relationship between said time and said speed, wherein said selected image is an earlier of the plurality of stored images when said vehicle travels at a faster detected speed and said selected image is a later of the plurality of stored images when said vehicle travels at a slower detected speed.
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Accused Products
Abstract
An apparatus for photographing a moving body. A video memory including a plurality of frame memories is used in order to store frame images obtained by a plurality of photographing operations. The frame images obtained by photographing are sequentially stored in any of frame memories. Any of a plurality of frame memories is selected in accordance with a detection of a front edge or a rear edge of a vehicle, and a frame image in a selected frame memory is used. A speed of a vehicle is used for this selection. In another case, apparatuses for photographing, such as TV cameras or storage devices such as video memories are provided in a plurality of systems, and a frame relating to either of the systems is selected in accordance with the speed. The high speed processing is enabled without image processings such as clipping of characters on a license plate.
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Citations
19 Claims
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1. An apparatus for photographing a moving body, comprising:
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a camera for repeatedly photographing a capture zone, said capture zone being provided on a downstream side along an advancing direction of said moving body as viewed from a detection position; a memory, which has a plurality of memory areas being capable of storing images obtained by a plurality of times of photographing operations, for sequentially storing the images obtained by repetition of photographing; a time detector for detecting a time at which said moving body passes said detection position; a speed detector for detecting a speed at which said moving body passes said detection position; and an image selector for selecting at least one from a plurality of stored images on the basis of the relationship between said time and said speed, wherein said selected image is an earlier of the plurality of stored images when said vehicle travels at a faster detected speed and said selected image is a later of the plurality of stored images when said vehicle travels at a slower detected speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for photographing a moving body, comprising:
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a time detector for detecting a time at which said moving body passes a detection position; a speed detector for detecting a speed at which said moving body passes said detection position; a plurality of cameras each of which photographs a corresponding capture zone among a plurality of capture zones whose boundaries are continuous or which partially overlap one another, a plurality of said capture zones being provided on a downstream side of said detection position along an advancing direction of said moving body; a plurality of memory devices which are provided in correspondence with said plurality of cameras and each of which stores an image obtained by a corresponding camera and a picture selector for selecting, on the basis of the relationship between said time and said speed, at least one image from a plurality of pictures obtained by said plurality of cameras, wherein said selected image is an earlier of the plurality of stored images when said vehicle travels at a faster detected speed and said selected image is a later of the plurality of stored images when said vehicle travels at a slower detected speed. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification