Patent ID: 11941784
Assignee: CANON U.S.A., INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC A  G

Claim 0:
1. An image processing apparatus comprising:
a probe with an illumination fiber and a detection fiber, the illumination fiber being configured for optical communication with a light source; and
a controller comprising:
at least one memory; and
at least one processor that executes instructions stored in the memory to:
receive an input image based on image data;
execute noise reduction processing on the image data by using view angle and rotation angle data of the probe to calculate a value using reference pixels based on a first frequency range, and subtract a second value using pixels based on a second frequency range; and
output noise-reduced image data based on a result of the noise reduction processing,

wherein ghost noise is reduced in the image reconstruction process.