Patent ID: 8667127

Claim:
A computer-implemented method comprising: transmitting a first resource request associated with a first resource identifier, wherein the first resource request corresponds to a set of resources; generating a first reference image corresponding to a first rendering of the set of resources, wherein the first reference image comprises a pixel intensity value for individual pixels in the first reference image; transmitting a second resource request associated with the first resource identifier, wherein the second resource request corresponds to a request for the same set of resources requested in the first resource request; generating a second reference image corresponding to a second rendering of the set of resources, wherein the second reference image comprises a pixel intensity value for individual pixels in the second reference image; determining an averaged reference image by averaging pixel intensity values in the first reference image with pixel intensity values in the second reference image; and determining an image weight map including a weighted pixel value for individual pixels corresponding to the respective pixels in the first and second reference images, wherein individual weighted pixel values are based on the difference of the corresponding pixel intensity value between the first and second reference images, wherein the method is implemented by a computer system configured with specific executable instructions.