REGISTRATION OF OBJECT MOTION DYNAMICS Russian patent published in 2015 - IPC G01P3/38 

FIELD: transport.

SUBSTANCE: object motion surface image acquisition is executed with the help of two video cameras installed thereat. Video recording data is used to define the coordinates of the object gravity centre

( $$x_1^{\text{'}};y_1^{\text{'}}$$ ) are coordinates of first camera image centre at the frame i+1 relative to the origin; ( $$x_2^{\text{'}};y_2^{\text{'}}$$ ) are coordinates of second camera image centre at the frame i+1 relative to the origin; (x; y) are coordinates of the object centre of gravity relative to said origin at shooting of i^th frame; (x'; y') are coordinates of the object gravity centre relative to said origin at shooting of i+1; O₁O₂ are distances between centres of said cameras; i=1, 2, 3, …, n is the frame number of video sequence. Motion dynamics parameters (direction speed, acceleration or deceleration) and motion path construction are performed for object gravity centre with allowance for its motion in crosswise and lengthwise directions.

EFFECT: higher accuracy of measurements at curvilinear motion.

2 cl, 4 dwg