Patent ID: 6850630

Claim:
Process for separation of static and dynamic components of a sequence of images separated in time and taken under the same conditions, comprising: recording a first intensity of a first pixel at one specific location of at least one area in the sequence of images; recording subsequent intensities for identical pixels at said one specific location in subsequent recorded images; and using pixel intensity sort criteria on intensity changes between the first intensity and the subsequent intensities recorded at the one specific location in the subsequent recorded images to discriminate in the subsequent recorded images between pixels of the at least one area showing minimal intensity changes and pixels of the at least one area showing larger intensity changes as the sequence progresses; forming, from said pixels showing minimal intensity changes, a first part of the static component of the sequence of images including intensity variations, said first part having said intensity variations above a second part of the static component having only a background level of intensity variation; and forming from said pixels showing larger intensity changes a part of the dynamic component of the sequence of images.