A basic definition of animation is the illusion of motion, or change, created by changing an image over time.

动画的一个基本定义是通过在一定时间内改变或移动图像而产生的幻觉。

youdao

The mechanisms invented by them created an illusion of motion, but it was not yet possible for the photographer to capture on the film the objects in motion.

这些人发明的摄影设备产生了动感，但摄影师仍无法用胶卷拍下运动的物体。

youdao

He sculpted characters from 7.5 cm to 38 cm (3 inches to 15 inches) tall and photographed them one frame at a time in continuous poses, thus creating the illusion of motion.

NPR: Special Effects Master Ray Harryhausen Dies At 92

The perceptual illusion of continuous motion is very real.

FORBES: The Mystery Of Social Media: Talking With ISPSO About 'Screen-Relations'

That lets the Meta 1 track your gestures, individual fingers and walls or other physical surfaces, all of which are processed in the PC with motion tracking tech to give the illusion of virtual objects anchored to the real world.

ENGADGET