Display control apparatus and computer-readable recording medium
A display control apparatus including: a creating unit that creates, from an image, a partial image of the image, and including in a center thereof an arbitrary viewpoint on the image; a display controller that displays, on a display, a display image including the image and a viewpoint listing image of a list of thumbnails of plural of the partial images; and an accepting unit that accepts input indicating a change of the image in the display image, according to operation on the image or the viewpoint listing image. The display controller changes the image in the display image according to the input, and changes a sequential order of the thumbnails in the viewpoint listing image such that a thumbnail of the partial image corresponding to a region of the image to be newly displayed according to the input is displayed at a predetermined position in the viewpoint listing image.
1. A non-transitory computer-readable recording medium that contains a computer program, which, when executed by a computer, causes the computer to perform a method comprising:
creating, from an omnidirectional image, a first partial omnidirectional image that is an image of a part of the omnidirectional image, and that includes a viewpoint on the omnidirectional image, by adjusting a camera angle and a camera position from a sphere, the sphere being defined such that a point thereon is associated with a point on the omnidirectional image;
displaying, on a display device, a display image that includes the first partial omnidirectional image and a viewpoint listing image that is a list of thumbnails of a first plurality of viewpoints of the omnidirectional image;
accepting an input, indicating a change in the display image, according to an operation made to any one of the display image and the viewpoint listing image; and
in response to accepting the input,
changing the display image according to the input to display a second partial omnidirectional image by changing the camera angle such that the display image includes at least one viewpoint that was not included in the first partial omnidirectional image, and
changing the viewpoint listing image to a list of thumbnails of a second plurality of viewpoints different from the first plurality of viewpoints such that a size of the thumbnails of the first plurality of viewpoints is different from a size of the thumbnails of the second plurality of viewpoints, and a thumbnail corresponding to the at least one viewpoint that was not included in the first partial omnidirectional image is displayed at a predetermined position in the viewpoint listing image.
2. The non-transitory computer-readable recording medium according to claim 1 , wherein
the predetermined position is a position of a center of the viewpoint listing image.
3. The non-transitory computer-readable recording medium according to claim 1 , wherein
the display image includes at least one viewpoint, and
a size of a thumbnail of a viewpoint that is included in the display image is larger than a size of a thumbnail of a viewpoint that is not included in the display image.
4. The non-transitory computer-readable recording medium according to claim 1 , wherein
a size of a thumbnail of a viewpoint that is included in the display image is smaller than a size of a thumbnail of a viewpoint that is not included in the display image.
5. The non-transitory computer-readable recording medium according to claim 1 , wherein
each viewpoint is expressed by a coordinate in a horizontal direction and a coordinate in a vertical direction, and
an order of the thumbnails in the viewpoint listing image is based on coordinates of the thumbnails in the horizontal direction.
6. The non-transitory computer-readable recording medium according to claim 1 , wherein
the operation made to the display image is an operation to designate a viewpoint on the display image.
7. The non-transitory computer-readable recording medium according to claim 1 , wherein
the operation made to the viewpoint listing image is any one of an operation to choose a thumbnail of the viewpoint listing image, and an operation to change a thumbnail that is displayed at the predetermined position in the viewpoint listing image by scrolling on the viewpoint listing image.
8. The non-transitory computer-readable recording medium according to claim 1 , wherein the viewpoint listing image includes viewpoints included in the display image.
9. A non-transitory computer-readable recording medium that contains a computer program, which, when executed by a computer, causes the computer to perform a method comprising:
creating, from an omnidirectional image, a first partial omnidirectional image that is an image of a part of the omnidirectional image, and that includes a viewpoint on the omnidirectional image, by adjusting a camera angle and a camera position from a sphere, the sphere being defined such that a point thereon is associated with a point on the omnidirectional image;
displaying, on a display device, a display image that includes the first partial omnidirectional image, and a viewpoint listing image that is a list of thumbnails of a first plurality of viewpoints of the omnidirectional image;
accepting an input, indicating a change in the display image, according to an operation made to any one of the display image and the viewpoint listing image; and
in response to accepting the input,
changing the display image according to the input to display a second partial omnidirectional image by changing the camera angle such that the display image includes at least one viewpoint that was not included in the first partial omnidirectional image, and
changing the viewpoint listing image to a list of thumbnails of a second plurality of viewpoints different from the first plurality of viewpoints and changing a size of the thumbnails of the first plurality of viewpoints so as to be different from a size of the thumbnails of the second plurality of viewpoints.
10. The non-transitory computer-readable recording medium according to claim 9 , wherein the viewpoint listing image includes viewpoints included in the display image.
11. A display control apparatus comprising:
circuitry configured to
create, from an omnidirectional image, a first partial omnidirectional image that is an image of a part of the omnidirectional image, and that includes a viewpoint on the omnidirectional image, by adjusting a camera angle and a camera position from a sphere, the sphere being defined such that a point thereon is associated with a point on the omnidirectional image;
display, on a display device, a display image that includes the first partial omnidirectional image and a viewpoint listing image that is a list of thumbnails of a first plurality of viewpoints of the omnidirectional image;
accept an input, indicating a change in the display image, according to an operation made to any one of the display image and the viewpoint listing image; and
in response to accepting the input,
change the display image according to the input to display a second partial omnidirectional image by changing the camera angle such that the display image includes at least one viewpoint that was not included in the first partial omnidirectional image, and
change the viewpoint listing image to a list of thumbnails of a second plurality of viewpoints different from the first plurality of viewpoints such that a size of the thumbnails of the first plurality of viewpoints is different from a size of the thumbnails of the second plurality of viewpoints, and a thumbnail corresponding to the at least one viewpoint that was not included in the first partial omnidirectional image is displayed at a predetermined position in the viewpoint listing image.
12. The display control apparatus according to claim 11 , wherein
the predetermined position is a position of a center of the viewpoint listing image.
13. The display control apparatus according to claim 11 , wherein
the display image includes at least one viewpoint, and
a size of a thumbnail of a viewpoint that is included in the display image is larger than a size of a thumbnail of a viewpoint that is not included in the display image.
14. The display control apparatus according to claim 11 , wherein
a size of a thumbnail of a viewpoint that is included in the display image is smaller than a size of a thumbnail of a viewpoint that is not included in the display image.
15. The display control apparatus according to claim 11 , wherein
each viewpoint is expressed by a coordinate in a horizontal direction and a coordinate in a vertical direction, and
an order of the thumbnails in the viewpoint listing image is based on coordinates of the thumbnails in the horizontal direction.
16. The display control apparatus according to claim 11 , wherein
the operation made to the display image is an operation to designate a viewpoint on the display image.
17. The display control apparatus according to claim 11 , wherein
the operation made to the viewpoint listing image is any one of an operation to choose a thumbnail of the viewpoint listing image, and an operation to change a thumbnail that is displayed at the predetermined position in the viewpoint listing image by scrolling on the viewpoint listing image.
18. The display control apparatus according to claim 11 , wherein the viewpoint listing image includes viewpoints included in the display image.