Motion Vectors

Some articles on motion vectors, motion, vector, motion vector:

MPEG-1 - Part 2: Video - Motion Vectors
... Through motion estimation the encoder can compensate for this movement and remove a large amount of redundant information ... the vector of the motion) from the previous video area to the current macroblock need to be encoded into the inter-frame (P- or B- frame) ... of this process, performed by the decoder to reconstruct the picture, is called motion compensation ...
Motion Estimation
... Motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another usually from adjacent frames in a ... It is an ill-posed problem as the motion is in three dimensions but the images are a projection of the 3D scene onto a 2D plane ... The motion vectors may relate to the whole image (global motion estimation) or specific parts, such as rectangular blocks, arbitrary shaped patches or even per pixel ...
Television Standards Conversion - Standards Conversion Methods in Common Use - Phase Correlation
... Correlation's success lies in the fact that it is effective with coping with rapid motion and random motion ... values, a Fast Fourier Transform expresses any changes (motion) in terms of frequency components ... of using FFTs over simply trying to predict the motion vector on a pixel by pixel basis? Mathematically, it's far easier and faster to recognize and process ...

Famous quotes containing the word motion:

    I have seen in this revolution a circular motion of the sovereign power through two usurpers, father and son, to the late King to this his son. For ... it moved from King Charles I to the Long Parliament; from thence to the Rump; from the Rump to Oliver Cromwell; and then back again from Richard Cromwell to the Rump; then to the Long Parliament; and thence to King Charles, where long may it remain.
    Thomas Hobbes (1579–1688)