METHOD AND DEVICE FOR FRAME PROCESSING Russian patent published in 1998 - IPC

FIELD: video processing equipment. SUBSTANCE: method processes first frame which elements are located in m1 lines. Intensity of each pixel in l1 line is I₁(t , l₁) depending on parameter t, in particular, time. This results in generation of second frame which has m2 lines. Pixel intensity I₂(t , l₂) in l2 line of second frame is calculated by interpolation of pixel intensity I₁(t , l₁) in first frame. L2 conforms to condition I₂(t , l₂) = max(J(t, l₂)+Δ ; 0), where J values are line samples of signal characteristic which is calculated using sample theorem. Shift Δ is used for partial compensation of negative intensity of sampled signal value J, so that interpolation with respect to lines uses A as arbitrary amplitude of positive value according to equation . Invention specification also describes device design for generation of second frame using said method. EFFECT: increased quality of picture. 16 cl, 8 dwg