motion is 2D vector on the imagemotion field는 3D 장면 움직임을 이미지로 투영한 것3D pointX(t)X(t)X(t)V=∂X/∂tV = \partial X / \partial tV=∂X/∂t2D Point (Scene Point)x(t)x(t)x(t)v=∂x/∂tv = \partial x / \partial tv=∂x/∂t parallaxx=fXZ y=fYZx = f\frac{X}{Z} \; y = f\frac{Y}{Z}x=fZXy=fZYv=fV−VzxZv = \frac{fV - V_zx}{Z}v=ZfV−Vzx 옵티컬 플로우 (Optical Flow) 알아보기 (Luckas-Kanade w/ Pyramid, Horn-Schunck, FlowNet 등)gaussian37's bloghttps://gaussian37.github.io/vision-concept-optical_flow/
