| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance predicted accuracy of a blur correction and improve accuracy of blur correction by extracting regularities from the time series detection output of a camera-shake detecting part and predicting a blur, based on the regularities. SOLUTION: A blur correcting microcomputer 3 captures the output of a blur correcting head amplifier (camera-shake sensor) 13, as time series data with chaotic behaviour, to form a three-dimensional vector. A three-dimensional state space is padded with divided three-dimensional data, to reconstitute an attractor and obtain consecutive vector loci having the regularities in a fixed range. The blur correcting signal of a blur correcting drive part is generated to control a blur correcting device, based on the results of the short-period prediction and the camera-shake detection output, so that a phase lag caused by the lag time from the occurrence of the actual camera-shake to the execution of blur correcting control can be compensated in an extensive camera-shake frequency region, with high accuracy, to correct the blur with the high accuracy.</p> |
