| 摘要 |
<P>PROBLEM TO BE SOLVED: To observe and record a moving image of a part without any disturbance light at an appropriate gain even if the disturbance light such as a flare and a blink is incident thereon, in an ophthalmologic photographing device operating AGC (automatic gain control) and observing and recording the moving image of an eye to be examined using image pickup elements. <P>SOLUTION: A system control part 20 determines presence/absence of an input of a fundus oculi image in a step S1. The image signal to be inputted is imported into the system control part 20 synchronously with a vertical synchronous signal. When the fundus oculi image is determined to be inputted, the whole image region of the fundus oculi image is divided into a plurality of areas in a step S2. The image recorded in image recording means 19 is read in a step S3. Matching is performed in a step S4, an amplification part control part 18 changes over the gain of an amplification part 15 between a fixed gain and AGC according to the result so as to determine the value of the gain. <P>COPYRIGHT: (C)2003,JPO |
