Shovel

1. A shovel comprising:

a lower traveling structure;

an upper swing structure mounted on the lower traveling structure via a swing mechanism;

an image capturing device attached to the upper swing structure to capture an image of an area surrounding the upper swing structure; and

a display device configured to display the image captured by the image capturing device such that distortion in a part of an edge of an upper surface of the upper swing structure is reduced compared with distortion in another part in the image.

2. The shovel as claimed in claim 1 , wherein the image capturing device is attached to an upper part of the upper swing structure such that the image captured by the image capturing device includes an image of each of ends of the edge of the upper surface of the upper swing structure.

3. The shovel as claimed in claim 1 , wherein of an image of the upper surface of the upper swing structure, a part other than a part of the edge is trimmed or masked.

4. The shovel as claimed in claim 1 , wherein

the image capturing device includes a back camera, and

the back camera is installed at a position of a predetermined height from an upper surface of a counterweight such that an image captured by the back camera includes an image of a left end a right end of the counterweight.

5. The shovel as claimed in claim 1 , wherein

the image capturing device includes a side camera, and

the side camera is attached to a handrail or a safety rail provided on the upper swing structure such that an image captured by the side camera includes an image of a front end and a back end of the upper swing structure.

6. The shovel as claimed in claim 1 , wherein an optical axis of the image capturing device passes through an area near the edge of the upper surface of the upper swing structure.

7. A shovel comprising:

a lower traveling structure;

an upper swing structure mounted on the lower traveling structure via a swing mechanism;

a cab mounted on the upper swing structure;

a display device provided in the cab; and

an image capturing device attached to the upper swing structure to capture an image of an area surrounding the upper swing structure, the area including a feature,

wherein the display device is configured to display a figure that represents a width of the upper swing structure at a display position of an image of an edge of an upper surface of the upper swing structure in the image captured by the image capturing device, the figure matching an actual positional relationship between the upper swing structure and the feature in a direction of the width of the upper swing structure.

8. The shovel as claimed in claim 7 , wherein a width of the figure corresponds to a width of an area where the upper swing structure is free of contact with the feature as the lower traveling structure travels in the area surrounding the upper swing structure.

9. The shovel as claimed in claim 7 , wherein the display device is configured to display the image captured by the image capturing device such that a size of the figure is smaller than a size of the image of the edge of the upper surface of the upper swing structure in a direction of the width of the upper swing structure.

10. The shovel as claimed in claim 1 , wherein the image capturing device is attached to the upper swing structure such that the part includes a boundary between a ground image and a central portion of a counterweight image in the image captured by the image capturing device.

11. The shovel as claimed, in claim 1 , wherein the display device is configured to display the image captured by the image capturing device such that an optical axis point of the image capturing device is positioned near a counterweight image.

12. The shovel as claimed, in claim 1 , wherein the image capturing device is a camera or a stereo camera.