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US 2001/0040630 A1Published application
Image pickup apparatus with electronic and optical zoom functions
AssigneeCanon Kabushiki Kaisha
InventorKAZUHIRO MATSUZAKA
Life of this patent
Estimating the term…
Abstract
An image pickup apparatus simultaneously performs electronic zooming and optical zooming to determine a view angle for an image, and substantially transfers control of the view angle to the optical zoom, while maintaining the view angle, so that the amount of control of the view angle by the electronic zoom decreases.
Claims27
An image pickup apparatus including:
- first adjustment means for optically adjusting a view angle;
- second adjustment means for electronically adjusting the view angle;
- commanding means for providing a view-angle change command;
- first control means for causing said second adjustment means to adjust said view angle based on said view-angle change command;
- and
- second control means for causing the adjustment of said view angle to be substantially transferred from said second adjustment means to said first adjustment means, while maintaining the view angle commanded by said commanding means.
3 more elements
An image pickup apparatus including:
- first adjustment means for optically adjusting a view angle;
- second adjustment means for electronically adjusting the view angle;
- commanding means for providing a view-angle change command;
- first control means for simultaneously driving said first adjustment means and said second adjustment means in order to change the view angle to a view angle corresponding to said view-angle change command;
- and
- second control means for causing the adjustment of said view angle to be substantially transferred from said second adjustment means to said first adjustment means, while maintaining said view angle corresponding to said view-angle change command.
3 more elements
An image pickup apparatus including:
- a zoom lens for optically adjusting a view angle;
- an image pickup device for capturing the image of an object through said zoom lens;
- an electronic zoom processing circuit for the electronic zoom processing of an output signal obtained from said image pickup device;
- a zoom switch for providing a view-angle change command;
- a first control circuit for causing said electronic zoom processing circuit to adjust the view angle based on said view-angle change command;
- and
- a second control circuit for controlling the adjustment of said view angle so as to be substantially transferred from said electronic zoom processing circuit to said zoom lens, while maintaining the view angle corresponding to the view-angle change command.
4 more elements
An image pickup apparatus including:
- a zoom lens for optically adjusting a view angle;
- an image pickup device for capturing an image of an object through said zoom lens;
- an electronic zoom processing circuit for the electronic zoom processing of an output signal obtained from said image pickup device;
- a zoom switch for providing a view-angle change command;
- a first control circuit for causing the zoom lens and the electronic zoom processing circuit to adjust the view angle based on said view-angle change command;
- and a second control circuit for controlling the adjustment of said view angle so as to be substantially transferred from said electronic zoom processing circuit to said zoom lens, while maintaining the view angle corresponding to the view-angle change command.
3 more elements
An image pickup apparatus including:
- a zoom lens for optically adjusting a view angle;
- an image pickup device for capturing the image of a subject through said zoom lens;
- an electronic zoom processing circuit for the electronic zoom processing of an output signal from said image pickup device;
- an auto-zoom switch for setting a size of an object within a viewing screen to a predetermined size;
- a memory in which the magnification of the object and the distance to said object, which correspond to the size set by said auto-zoom switch, are stored;
- an operation processing circuit for calculating a view angle to maintain (i) the size of the object, based on a change between said distance to the object and a present distance to the object, and (ii) the magnification of the object, which size and magnification are stored in said memory;
- a first control circuit for causing said electronic zoom processing circuit to obtain the view angle calculated by said operation processing circuit;
- and
- a second control circuit for causing the adjustment of the view angle to be substantially transferred from said electronic zoom processing circuit to said zoom lens, while maintaining the view angle calculated by said operation processing circuit.
6 more elements
An image pickup apparatus including:
- a zoom lens for optically adjusting a view angle;
- an image pickup device for capturing the image of an object through said zoom lens;
- an electronic zoom processing circuit for the electronic zoom processing of an output signal from said image pickup device;
- an auto-zoom switch for setting a size of the object within a viewing screen to a predetermined size;
- a memory in which the magnification of the object and the distance to the object, which correspond to the size set by said auto-zoom switch, are stored;
- an operation processing circuit for calculating a view angle to maintain (i) the size of the object, based on a change between said distance to the object and a present distance to the object, and (ii) the magnification of the object, which are stored in said memory;
- a first control circuit for simultaneously causing said zoom lens and said electronic zoom processing circuit to obtain the view angle calculated by said operation processing circuit;
- and
- a second control circuit for causing the adjustment of the view angle to be substantially transferred from said electronic zoom processing circuit to said zoom lens, while maintaining the view angle calculated by said operation circuit.
6 more elements
A computer-readable storage medium in which a program for adjusting a view angle for an image pickup apparatus is stored, said storage medium program causing the computer to perform the process of:
- executing electronic zooming in order to obtain a view angle based on a view-angle change command;
- and
- maintaining the view angle obtained by said electronic zooming by adjusting a zoom lens, with the view angle unchanged.
A computer-readable storage medium in which a program for adjusting a view angle for an image pickup apparatus is stored, said storage medium program causing the computer to perform the process of:
- executing electronic zooming and the driving of a zoom lens in order to obtain a view angle based on a view-angle change command;
- and
- maintaining said view angle obtained by said electronic zooming by driving said zoom lens, with said view angle unchanged.
Dependencies are inferred from the claim text.