Analysing Acceleration in Computer Images’ Stream
摘要
In most research on motion analyses in computer vision, only relative movement between consecutive frames has been considered, without considering the higher orders of motion. Acceleration is a more distinct feature than displacement or velocity. Analysing motion in terms of acceleration can provide better understanding of the scene. This chapter introduces acceleration detection algorithms and generalize them to real-world motion. In addition, the acceleration field can be decomposed into constituent parts to allow a greater depth of understanding of the motion and the algorithms have been tested and show the power on a variety of image sequences. The experimental results illustrate the ability of acceleration on discriminating different motions whereas velocity did not show any obvious difference.