Patent ID: 9310459
Filing Date: 2016-04-12
CPC Classification: G01S,G02B,G03B,H04N

Claim Text:
1. A method of automatically tracking and photographing a celestial object, which moves relative to a photographic apparatus due to diurnal motion, in which, in order to photograph the celestial object, a trimming area that has been electronically trimmed from a part of an imaging area of an image sensor is moved while the celestial object is photographed, said method comprising: obtaining movement information of a celestial-object image on said imaging area; setting movement data for said trimming area based on the obtained said movement information of said celestial-object image; setting a cut-out range of said trimming area and photographing time; and obtaining a photographing image at each trimming area while moving said trimming area based on the set said movement data of said trimming area, said cut-out range of said trimming area, and said photographing time, wherein the step of setting a cut-out range of said trimming area and photographing time includes: setting the calculated maximum photographing time as a photographing time.