Patent Number: 7,822,281

Title: Digital video compression

Abstract: A method of compressing a current image of a sequence of images. The current image is transformed with a predetermined transform to provide a set of transform coefficients, which are divided into blocks. An encoding termination condition is determined for at least one block, and the block is encoded in a series of coding passes. In a current coding pass, a performance measure is predicted, and encoding is terminated if the performance measure satisfies the encoding termination condition. Different color components may be given different weightings.

Inventors: Becker; Axel (Cammeray, AU), Chan; Woei (Darlinghurst, AU), Andrew; James Philip (Waverton, AU), M Poulouin; David Dominique (Saint Donan, FR)

Assignee: Canon Kabushiki Kaisha

International Classification: G06K 9/36 (20060101); G06K 9/46 (20060101)

Expiration Date: 2018-10-26 0:00:00