1. An image processing device comprising: a circuit configured to: acquire an image captured by a first imaging device provided in an optical head-mounted display (HMD) for presenting an augmented real-world image, wherein a three-dimensional image in a virtual three-dimensional space is projected onto a real-world setting in the augmented real-world image, wherein the image captured by the first imaging device includes an area including a field of view of a user wearing the HMD; detect a feature of the image captured by the first imaging device; acquire an image captured by a second imaging device having an angle of view that at least partially overlaps an angle of view of the first imaging device; and detect a feature of the image captured by the second imaging device when the feature of the image captured by the first imaging device is not detected.