I have found errors up to 15% when using the TF=AF/M formula. I used the TeleVue eyepiece to illustrate the large error in a highly-accurate eyepiece of known apparent field and field diameter in a telescope where the focal length is known to a mm or two. Since AF can vary in a ...
The last aberration addressed here is chromatic aberration, which is the change in focal length as the wavelength of light changes. When glass bends light, the magnitude of the bend is based on what is called the index of refraction of the glass. While this concept is widely understood, what...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...
Since the optical path length OPL through the body is enlarged by (n-1) times the thickness of the body d: ΔZUS=ZUS-ZIS=n-1d d=ZUS-ZIS/n-1 HIS=ZUS+d HIS=ZUS-ZIS/n-1+ZUS The height map of the inclined or curved surface HIS can therefore be calculated by the formula: HI...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...
An optical tracking system comprises: a marker part; an image forming part; and a processing part. The marker part includes: a pattern having particular information; and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes: a ...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...
The processing part determines the posture of the marker part from a coordinate conversion formula between a coordinate on the pattern surface of the pattern and a pixel coordinate on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. ...