Patent ID: 9619900
Date: 2017-04-11
CPC Classifications: G06T

Claim:
1. A computer-implemented method of determining a test item rendering anomaly, comprising: providing a test item to a processor-based first test item rendering system, the first test item rendering system including a graphics rendering engine and being configured to generate a first graphical representation of the test item; providing the test item to a second processor-based test item rendering system, the second test item rendering system including a graphics rendering engine and being configured to generate a second graphical representation of the test item; capturing, using a computer processing system, a first digital pixel image of the first graphical representation and a second digital pixel image of the second graphical representation; processing pixels of the first and second digital pixel images using the computer processing system, wherein the processing includes using an automated digital image analysis algorithm, the processing including comparing the first digital pixel image to the second digital pixel image, the algorithm generating a numerical metric that indicates an extent to which the second digital pixel image differs from the first digital pixel image; and providing an anomaly indication for the test item when the numerical metric indicates that the second digital pixel image differs from the first digital pixel image by more than a threshold amount; storing metadata for each of the first and second digital pixel images in one or more data structures, the metadata including data that identifies the test item, the rendering system used in generating the digital pixel image, and a date on which the digital pixel image was captured; and automatically selecting the first and second digital pixel images for comparison based on the metadata.