METHOD AND SYSTEM FOR PREVENTING AND DETECTING HAZARDOUSLY MISLEADING INFORMATION ON SAFETY-CRITICAL DISPLAY

摘要

An object-based integrity verification method (330) for detecting hazardously misleading information contained in an output image of a graphics processing unit comprises steps of: identifying a plurality of safety-critical graphic objects in the output image (332); assigning each safety-critical graphic object an object ID code (334); creating an object verification database (336); rendering a monochrome reference ID code image using object ID code as its color component (342T.1 and 342C.1); verifying the location, shape and color information for each safety-critical graphic object (342S.4, 342T.5 and 342C.6), and tracking the visibility and overlaying property between safety-critical graphic objects using the monochrome reference ID code image (342T.5 and 342C.6); detecting and evaluating failure condition (346); and annunciating the failure condition with proper warning level and appropriate corrective action (350).