| 摘要 |
Motion estimation method for moving picture compression coding. The motion estimation method finds a motion vector at a high speed without degrading a compression rate and an image quality, and a computer-readable recording medium stores a program for implementing the method. The method for a motion picture compression coding in a MPEG4-based motion estimation method includes the steps of: a) estimating an initial motion point; b) performing a Newton-Raphson method using a MAD (Mean Absolute Difference) of the estimated motion point of the step (a) as an objective function, and finding a new motion point; c) determining whether a difference between the new motion point of the step (b) and the estimated motion point is less than a minimum error range, estimating the new motion point as the initial motion point when the difference is more than the minimum error range, and performing the step (b); and d) determining whether a difference between the new motion point of the step (b) and the estimated motion point is less than a minimum error range, estimating the new motion point as a final motion point when the difference is less than the minimum error range, and determining a motion vector.
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