Patent ID: 8510795
Filing Date: 2013-08-13
Classification: G06F,G09B

Abstract:
1. A computer implemented method for generating video tests for distinguishing a human user from a computer software agent in an online application, the method comprising: selecting a video clip from a video clips database, each video clip having a plurality of video frames; segmenting the video clip into a plurality of video segments, each video segment having a subset of video frames; selecting one of the video segments; associating the selected video segment with a plurality of queries, each query associated with at least one correct answer to the query, wherein associating a query with at least one correct answer to the query comprises: modifying the selected video segment such that the modified video segment is visually similar to the unmodified video segment and a hash value of the modified video segment is different from the hash value of the unmodified video segment to prevent identifying the selected video clip based on the hash value of the unmodified video segment, wherein modifying the selected video segment comprises: associating the modified video segment with a plurality of queries and correct answers associated with the queries; and storing the modified video segment and the plurality of queries in a video tests database.