Reduced bandwidth stereo distortion correction for fisheye lenses of head-mounted displays

A stereo depth camera operative to capture stereo images, the stereo depth camera comprising:

• a left camera skewed outward by a non-zero angle from a forward direction of a head-mounted display system, the left camera comprising a left camera sensor array and a left camera lens positioned forward of the left camera sensor array, the left camera lens comprising an optical axis that is laterally offset from the center of the left camera sensor array toward a center of the head-mounted display system to center the left camera lens substantially on a principal point;
• and
• a right camera horizontally spaced apart from the left camera and skewed outward by a non-zero angle from the forward direction of the head-mounted display system, the right camera comprising a right camera sensor array and a right camera lens positioned forward of the right camera sensor array, the right camera lens comprising an optical axis that is laterally offset from the center of the right camera sensor array toward the center of the head-mounted display system to center the right camera lens substantially on the principal point.

A method of providing a stereo depth camera operative to capture stereo images, the method comprising:

• coupling a left camera to a support structure of a head-mounted display system, the left camera skewed outward by a non-zero angle from a forward direction of the head-mounted display system, wherein the left camera comprises a left camera sensor array and a left camera lens positioned forward of the left camera sensor array, the left camera lens comprising an optical axis that is laterally offset from the center of the left camera sensor array toward a center of the support structure to center the left camera lens substantially on a principal point;
• and
• coupling a right camera to the support structure of the head-mounted display system, the right camera skewed outward by a non-zero angle from the forward direction of the head-mounted display system, the right camera comprises a right camera sensor array and a right camera lens positioned forward of the right camera sensor array, the right camera lens comprising an optical axis that is laterally offset from the center of the right camera sensor array toward the center of the support structure to center the right camera lens substantially on the principal point.