Digital camera performing pixel shift based on electronic zoom
First Claim
1. An electronically zoomable digital camera having a hand shake correction mechanism for moving an optical member or an image capturing element to correct hand shake, wherein,when electronic zoom operates, pixel shift is carried out in such manner of capturing a reference image that serves as a reference and then capturing a shifted image after moving the optical member or the image capturing element from the reference image by a prescribed amount of shift by means of the hand shake correction mechanism and thereafter interpolating pixels of the shifted image between pixels of the reference image,the amount of shift is changed according to a magnification of the electronic zoom, andthe hand shake correction mechanism has a continuous mode in which the movement is effected by a continuous amount and a fixed amount mode in which movement is effected by only a fixed amount and is driven in the fixed amount mode when the pixel shift is carried out.
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Accused Products
Abstract
In an electronically zoomable digital camera having a hand shake correction mechanism, when electronic zoom operates, pixel shift is carried out in such manner of capturing a reference image and then capturing a shifted image after moving an image capturing element from the reference image by a prescribed amount of shift by means of the hand shake correction mechanism and thereafter interpolating pixels of the shifted image between pixels of the reference image. The amount of shift is changed according to a magnification of the electronic zoom. The hand shake correction mechanism has a continuous mode in which the movement is effected by a continuous amount and a fixed amount mode in which movement is effected by only a fixed amount and is driven in the fixed amount mode when the pixel shift is carried out.
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Citations
7 Claims
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1. An electronically zoomable digital camera having a hand shake correction mechanism for moving an optical member or an image capturing element to correct hand shake, wherein,
when electronic zoom operates, pixel shift is carried out in such manner of capturing a reference image that serves as a reference and then capturing a shifted image after moving the optical member or the image capturing element from the reference image by a prescribed amount of shift by means of the hand shake correction mechanism and thereafter interpolating pixels of the shifted image between pixels of the reference image, the amount of shift is changed according to a magnification of the electronic zoom, and the hand shake correction mechanism has a continuous mode in which the movement is effected by a continuous amount and a fixed amount mode in which movement is effected by only a fixed amount and is driven in the fixed amount mode when the pixel shift is carried out.
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5. An electronically zoomable digital camera having a hand shake correction mechanism for moving an optical member or an image capturing element to correct hand shake, wherein,
when electronic zoom operates, pixel shift is carried out in such manner of capturing a reference image that serves as a reference and then capturing a shifted image after moving the optical member or the image capturing element from the reference image by a prescribed amount of shift by means of the hand shake correction mechanism and thereafter interpolating pixels of the shifted image between pixels of the reference image, and the hand shake correction mechanism comprises a movement amount regulation section for effecting mechanical regulation so that the amount of movement of the optical member or the image capturing element does not exceed the amount of shift when the pixel shift is carried out, wherein the movement amount regulation section is composed of a projection and a frame that surrounds the projection.
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7. An electronically zoomable digital camera having a hand shake correction mechanism for moving an optical member or an image capturing element to correct hand shake, wherein,
when electronic zoom operates, pixel shift is carried out in such manner of capturing a reference image that serves as a reference and then capturing a shifted image after moving the optical member or the image capturing element from the reference image by a prescribed amount of shift by means of the hand shake correction mechanism and thereafter interpolating pixels of the shifted image between pixels of the reference image, and the hand shake correction mechanism comprises a movement amount regulation section for effecting mechanical regulation so that the amount of movement of the optical member or the image capturing element does not exceed the amount of shift when the pixel shift is carried out, wherein the pixel shift is carried out by using the movement amount regulation section in accordance with an amount of a prescribed electronic zoom magnification.
Specification