HIGH-PERFORMANCE CONTENT ALTERATION ARCHITECTURE AND TECHNIQUE

摘要

PROBLEM TO BE SOLVED: To provide a unique system and method that facilitates obtaining a high-performance and more secure HIPs. SOLUTION: The HIPs can be generated in part by caching pre-rendered characters and/or pre-rendered arcs as bitmaps in binary form and then selecting any number of the characters and/or arcs randomly to form a HIP sequence. The warp field can be pre-computed and converted to a plurality of integers in binary form and they are stored in a manner capable of caching them. Any one sub-region can be retrieved from the cache and mapped to the HIP sequence to warp the HIP. Thus, the pre-computed warp field can be used to warp multiple HIP sequences. The warping can occur in binary form and at a high resolution to mitigate reverse engineering by executing down-sampling. Texture and/or color can be added as well to improve its appearance. COPYRIGHT: (C)2006,JPO&NCIPI