Imaging device, control method for imaging device, and program

Abstract

The aim is to easily capture clear and easy-to-view video. [Solution] The imaging device of the present invention includes a pan-tilt control means for rotating the imaging means in the pan and tilt directions, a zoom control means for controlling the zoom of the imaging means, an output means for outputting an image captured by the imaging means, and a control means for controlling the size and position of the field of view of the image output by the output means to the size and position of a target field of view using the pan-tilt control means and the zoom control means. The control means is characterized in that, before controlling to the position of the target field of view, if at least one of the size of the field of view of the image output by the output means and the size of the target field of view is smaller than a predetermined field of view threshold, it performs a zoom out and then controls the position of the field of view of the output image to move to the position of the target field of view.

Claims

1. An imaging means for photographing the subject, Pan-tilt control means for rotating the imaging means in the pan and tilt directions, A zoom control means for controlling the zoom of the imaging means, An output means for outputting images captured by the aforementioned imaging means, An imaging device having a control means for controlling the size and position of the field of view of the image output by the output means to a target field of view using the pan-tilt control means and the zoom control means, The control means is An imaging device characterized in that, before controlling the position of the output image to the target field of view, if at least one of the field of view size of the image output by the output means and the target field of view size is smaller than a predetermined field of view threshold, zoom out is performed, and then the position of the field of view of the output image is controlled to move to the target field of view position.

2. The control means is The imaging apparatus according to claim 1, characterized in that, before controlling to the position of the target field of view, if at least one of the field of view size of the image output by the output means and the target field of view size is smaller than the predetermined field of view threshold, zoom out is performed so that the field of view size of the output image becomes a first field of view size larger than the predetermined field of view threshold.

3. The control means is The movement speed of the video is calculated when the position of the field of view of the output video is moved to the position of the target field of view within a predetermined time. The imaging device according to claim 2, characterized in that if the calculated movement speed of the image is greater than a predetermined speed threshold, zoom out is performed and then the position of the field of view of the output image is controlled to move to the position of the target field of view.

4. The control means is The imaging apparatus according to claim 3, characterized in that, before controlling the position of the output image to the target angle of view, if both the size of the angle of view of the image output by the output means and the size of the target angle of view are greater than or equal to a predetermined angle of view threshold, the imaging apparatus calculates the movement speed of the image to move the position of the output image to the target angle of view within a predetermined time.

5. The control means is The imaging apparatus according to any one of claims 2 to 3, characterized in that it can move the position of the field of view of the output video to the position of the target field of view within a predetermined time, and calculates the size of the first field of view such that the movement speed of the video when moving the position of the field of view of the output video to the position of the target field of view is less than or equal to the predetermined speed threshold.

6. The control means is The imaging device according to claim 5, characterized in that when zooming out to achieve the size of the first field of view, the device controls the position of the field of view of the output image to move to the position of the target field of view by making the size of the second field of view smaller than the size of the first field of view.

7. The control means is The imaging device according to claim 1 or 2, characterized in that when the position of the field of view of the output video is moved to the position of the target field of view, the device controls the device to perform a zoom-in when the position of the field of view of the output video includes the position of the target field of view.

8. An imaging means for photographing the subject, Pan-tilt control means for rotating the imaging means in the pan and tilt directions, A control method for an imaging device having a zoom control means for controlling the zoom of the imaging means, An output step which outputs the image captured by the imaging means, The control step includes controlling the size and position of the field of view of the image output by the output step to the size and position of the target field of view using the pan-tilt control means and the zoom control means, In the control step described above, A control method for an imaging device, characterized in that, before controlling the position of the output image to the target field of view, if at least one of the field of view size of the image output by the output step and the target field of view size is smaller than a predetermined field of view threshold, a zoom-out is performed, and then the position of the output image's field of view is controlled to move to the target field of view position.

9. A program for causing a computer to function as a control means for the imaging apparatus described in claim 1.

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