Patent ID: 11953381
Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The method according to claim 2, wherein an estimate of the deformation data TLI(Ai) and the intensity-weight data WLI(Ai) and of a minimum of the difference DAi is obtained by computing for each zero-mean cross-correlation product image of zero-mean cross-correlation product images, for each respective portion of the macropixel of surface area (Ai), DAi being defined relatively to a norm designated by symbol ∥·∥Ai, between a signal sub-image I(x, y) and each of the reference intensity patterns RL(x, y) with respective (x, y) coordinates for each respective portion of the macropixel of surface area (Ai),
wherein the zero-mean cross-correlation product images between the signal sub-image I(x, y) and each of the reference intensity patterns RL(x, y) have a peak, wherein the intensity-weight data WLI(Ai) is the amplitude of the peak, and the deformation data TLI(Ai) is a displacement vector between said peak or its centroid from center of each respective zero-mean cross-correlation product image of the zero-mean cross-correlation product images.