结论：干眼症患者的波前像差可在瞬目后较短时间内明显增高，而正常人变化并不明显。
Conclusion: significant increases in aberrations were recorded by a Hartmann-Shack aberrometer soon after a blink in dry-eye patients, while those didn't changes significantly in normal eyes.
本文对当前常用的变化检测技术进行了讨论，主要研究了图像差值变化检测方法。
This paper discusses widely-used change detection techniques and mainly studies image differencing method.
系统各项像差系数随子孔径数的增加而降低；当子孔径数大于6时，各像差系数变化缓慢。
The coefficients of every aberration were decreased with the increase of the number of subapertures (N), but changed slowly when N was greater than 6.
术后早期SE、球镜度、高阶像差的变化值越大，夜间视觉质量越差，夜间眩光越显著。
Larger early postoperative changes of se, spherical diopter, and HOA correlated with worse nocturnal visual quality and glare.
结论：在实际用眼中，由于调节反应诱发屈光力变化范围以及角膜的像差补偿作用，正视眼总能维持较高的视觉质量。
In fact, most of the time the moderate volume of accommodation response and the corneal compensation of inter eye wavefront make a stable and qualified vision quality possible.
用此算法重建背景图像以及用图像差分算法计算像素改变比例，能监测慢速、微量变化的运动物体。
Tiny changes in a moving object can be detected by rebuilding the image background using the algorithm and calculating the ratio of pixel changes by means of the difference image algorithm.
用此算法重建背景图像以及用图像差分算法计算像素改变比例，能监测慢速、微量变化的运动物体。
Tiny changes in a moving object can be detected by rebuilding the image background using the algorithm and calculating the ratio of pixel changes by means of the difference image algorithm.
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