A camera device for localizing an optical marker is provided that has at least one image sensor and a control and evaluation unit. A first camera channel for recording first image data having the optical marker is formed from the image sensor and the control and evaluation unit. The control and evaluation unit is configured to locate the optical marker in the first image data and to determine a first pose of the optical marker relative to the camera device. A second camera channel for recording second image data having the optical marker is formed from the image sensor and the control and evaluation unit. The control and evaluation unit is configured to locate the optical marker in the second image data, to determine a second pose of the optical marker relative to the camera device, and to compare the first pose and the second pose with one another.