Digital video signature apparatus and methods for use with video program identification systems

Patent metadata

Field	Value
Publication number	US-9015742-B2
Application number	US-201314141716-A
Country	US
Kind code	B2
Filing date	Dec 27, 2013
Priority date	Sep 12, 2003
Publication date	Apr 21, 2015
Grant date	Apr 21, 2015

Abstract

Digital video signature apparatus and methods for use with video program identification systems are disclosed. The example apparatus and methods generate a signature associated with a video program. An example system includes a frame scanner to scan video frames associated with the video program. The frame scanner is to select a video frame based on a number of intra-coded macro blocks within the video frame. The example system also includes an intra-coded macro block extractor to extract intra-coded macro blocks from the video frame and a scaled image extractor to extract a scaled image from the intra-coded macro blocks. A signature generator is also included in the example system to calculate a plurality of centroids associated with video frame based on the scaled image and to form the signature based on the plurality of centroids.

First claim

What is claimed is:

1. A system to generate a signature associated with a video program, the system comprising:
an intra-coded block extractor to extract intra-coded macro blocks from a video frame associated with the video program;
a scaled image extractor to extract a scaled image from the intra-coded macro blocks; and
a signature generator to form a signature for the scaled image based on a first centroid associated with a first image component of the scaled image and a sec…

Assignees

• Nielsen Co Us Llc

Inventors

• Deng Kevin

Classifications

• H04N19/467 Primary

  Electricity · mapped topic

• H04N21/44008

  Electricity · mapped topic

• H04N21/8352

  Electricity · mapped topic

• H04N21/2547

  Electricity · mapped topic

• H04H2201/90

  Electricity · mapped topic