Method and apparatus for converting image into electrical signals
AssigneeCanon Kabushiki Kaisha
InventorJun Tokumitsu
Life of this patent
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Abstract
According to a method and apparatus for converting an image into electrical signals, a single image is exposed onto a plurality of solid-state image pickup devices a plurality of times each, and charges distributed in correspondence with images induced by the respective exposure cycles are shifted within the respective solid-state image pickup devices and are added to each other. In addition, the output signals generated by the solid-state image pickup devices and representing the identical pixels are subtracted from each other.
Claims34
A method of converting an image into electrical signals, comprising the steps of:
- exposing a single image on a plurality of solid-state image pickup devices a plurality of times each;
- shifting charges induced by exposure cycles and distributed in correspondence with the single image in said solid-state image pickup devices while exposure is performed, and adding shifted charges;
- and
- performing a subtraction of output signals from said solid-state image pickup devices, the output signals representing corresponding pixels of said plurality of solid-state image pickup devices.
An apparatus for converting an image into electrical signals, comprising:
- a plurality of solid-state image pickup devices;
- exposing means for exposing a single image on said solid-state image pickup devices a plurality of times each;
- and
- means for performing a subtraction between output signals from said solid-state image pickup devices, the output signals representing corresponding pixels of said plurality of solid-state image pickup devices.
A method of converting an image into electrical signals, comprising the steps of:
- exposing a single image on a plurality of solid-state image pickup devices a plurality of times, with exposure positions of the single image on each of the pickup devices being shifted relative to each other for each exposure;
- adding charges induced by the plural exposures in each of the plural pickup devices;
- and
- performing a filtering operation on output signals from the pickup devices which correspond to pixels to obtain electrical signals representing a filtered image.
A method of converting an image into electrical signals, comprising the steps of:
- exposing a single image on a plurality of solid-state image pickup devices a plurality of times each;
- shifting charges induced by exposure cycles and distributed in correspondence with the single image in the solid-state image pickup devices while exposure is performed, and adding shifted charges;
- and
- performing a filtering operation on output signals from the pickup devices which correspond to pixels to obtain electrical signals representing a filtered image.
an apparatus for converting an image into electrical signals, comprising:
- a plurality of solid-state image pickup devices;
- exposing means for exposing a single image on said solid-state image pickup devices a plurality of times each;
- and
- an electrical circuit for performing a filtering operation on output signals from the pickup devices which correspond to obtain electrical signals representing a filtered image.
Dependencies are inferred from the claim text.