Methods of detecting motion of television images.

摘要

57 A method fo detecting motion of a television image, due for example to panning of a television camera, uses a block matching technique in which frame difference summation data derived by summing the magnitudes of the differences between the pixel data of each of corresponding representative pixels in two successive frames of the television image are compared. The television image may be vertically divided into a rectangular array of blocks arranged horizontally and vertically, and a representative pixel is located at the centre of each block.