Video stream modification to defeat detection
AssigneeTechnology, Patents & Licensing, Inc.
InventorsRainer W. Lienhart, Charles A. Eldering, Richard König
Life of this patent
Estimating the term…
Abstract
A method and system for detecting automatic ad detection is presented in which video streams are modified such that features cannot be automatically recognized or statistical parameters and fingerprints derived from the video stream cannot be matched against fingerprints of known video segments in a database.
Claims23
A method for altering a video stream to prevent the detection of video segments, the video stream including a plurality of images, the method comprising:
- receiving the video stream;
- identifying a plurality of types of image modifications to be made to one or more images of the video stream, the modifications, when applied, causing a spatial alteration of the one or more images;
- randomly selecting a first type of the types of image modifications;
- and
- altering at least a portion of at least a first one of the images by applying the randomly selected first type of image modification to the at least first one of the images, wherein the altering reduces the ability to detect a video segment in the video stream.
A system for altering a video stream to prevent the detection of a video segment, the video stream including a plurality of images, the system comprising:
- a detection subsystem for detecting parameters associated with the video stream and indicative of the presence of the video segment;
- and
- a modification subsystem for randomly modifying a portion of at least one image within the video stream to create a spatial modification within the at least one image to prevent detection of the presence of the video segment, wherein the spatial modification is randomly selected from a plurality of modifications.
A method for altering a video stream to prevent the detection of video segments, the method comprising:
- randomly selecting a spatial modification from a plurality of spatial modifications;
- and
- randomly altering a portion of at least one image within the video stream using the selected spatial modification, wherein the random spatial modification substantially increases the dissimilarity between a video segment fingerprint derived from the video stream and a stored fingerprint representing the video segment.
A method for preventing automated advertisement detection of at least one advertisement in a video stream, the video stream including a plurality of images, the method comprising:
- randomly altering a portion of at least one image within the video stream surrounding the at least one advertisement to create a random spatial modification within the at least one image, wherein the random spatial modification is randomly selected from a plurality of spatial modifications and the spatial modification causes a sufficient increase in the similarity between the video stream and the advertisement to render automated advertisement detection ineffective.
Dependencies are inferred from the claim text.