Image capturing apparatus and control method thereof
An image capturing apparatus comprises an image capturing unit configured to capture an image of an object via an optical system, a display unit configured to display the image captured by the image capturing unit on a screen, a detection unit configured to simultaneously detect a plurality of touch positions on the screen on which the image is displayed, and a control unit configured to adjust a focus state in accordance with a change in a distance between a first detected touch position and a second detected touch position, so as to change a focus area.
1. An image capturing apparatus comprising:
an image sensor configured to capture continuous video images of an object via an optical system;
a display unit configured to display the images captured by said image sensor on a screen, the displayed images having a current auto-focusing target position;
a touch panel configured to simultaneously detect a first touch position and a second touch position having a distance from the first touch position on the screen on which the images are displayed, the first touch position being the current auto-focusing target position of the images and the second touch position being a new auto-focusing target position of the images; and
a processor configured to gradually adjust the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with a reduction in the distance between the first touch position and the second touch position.
2. The apparatus according to claim 1 , wherein said processor adjusts the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position immediately, if the distance between the first touch position and the second touch position is smaller than a predetermined amount.
3. The apparatus according to claim 1 , wherein said processor gradually adjusts the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with a speed at which the distance between the first touch position and the second touch position changes.
4. A control method of an image capturing apparatus which comprises an image sensor configured to capture continuous video images of an object via an optical system, and a display unit configured to display the image captured by the image sensor on a screen, the displayed images having a current auto-focusing target position, the method comprising:
a detection step of simultaneously detecting a first touch position and a second touch position having a distance from the first touch position on the screen on which the images are displayed, the first touch position being the current auto-focusing target position of the images and the second touch position being a new auto-focusing target position of the images; and
an adjusting step of gradually adjusting the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with a reduction in the a distance between the first touch position and the second detected touch position.
5. The method according to claim 4 , wherein in the adjusting step, the in-focus position of the images is adjusted from the current auto-focusing target position to the new auto-focusing target position immediately, if the distance between the first touch position and the second touch position is smaller than a predetermined amount.
6. The method according to claim 4 , wherein in the adjusting step, the in-focus position of the images is gradually adjusted from the current auto-focusing target position to the new auto-focusing target position in accordance with a speed at which the distance between the first touch position and the second touch position changes.
7. A non-transitory computer-readable storage medium storing a program for causing a computer to execute the control method according to claim 4 .
8. An image capturing apparatus comprising:
an image sensor configured to capture continuous video images of an object via an optical system;
a display unit configured to display the images captured by said image sensor on a screen, the displayed images having a current auto-focusing target position;
a touch panel configured to simultaneously detect a first touch position and a second touch position having a distance from the first touch position on the screen on which the images are displayed;
a processor configured to select an object displayed between the first touch position and the second touch position as a new auto-focusing target position; and
the processor configured to gradually adjust the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with a reduction in the distance between the first touch position and the second touch position.
9. The apparatus according to claim 8 , wherein said processor gradually adjusts the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with the speed at which the distance between the first touch position and the second touch position changes.
10. A control method of an image capturing apparatus which comprises an image sensor configured to capture continuous video images of an object via an optical system, and a display unit configured to display the images captured by the image capturing means on a screen, the displayed images having a current auto-focusing target position,
the method comprising:
a detection step of simultaneously detecting a first touch position and a second touch position having a distance from the first touch position on the screen on which the images are displayed;
a selection step of selecting an object displayed between the first touch position and the second touch position as a new auto-focusing target position; and
an adjusting step of gradually adjusting the in-focus position of the images from the current auto-focusing target position to the new auto-focusing target position in accordance with a reduction in the distance between the first touch position and the second touch position.
11. The method according to claim 10 , wherein in the adjusting step, the in-focus position of the images is adjusted from the current auto-focusing target position to the new auto-focusing target position in accordance with a speed at which the distance between the first touch position and the second touch position changes.
12. A non-transitory computer-readable storage medium storing a program for causing a computer to execute the control method according to claim 10 .