Methods and apparatus for generating signatures
First Claim
1. A method for generating signatures, comprising:
- identifying a first plurality of filtered values by performing a wavelet transform on a first frame of media samples;
determining a first energy value based on a first portion of the first plurality of filtered values;
determining a second energy value based on a second portion of the first plurality of filtered values;
determining a first descriptor of the first frame of media samples based on a comparison of the first energy value and the second energy value;
generating, via a processor, a first signature based on the first descriptor;
determining a second descriptor of a second frame of media samples; and
generating a second signature based on the second descriptor.
12 Assignments
0 Petitions
Accused Products
Abstract
Methods, apparatus, and articles of manufacture for media monitoring are disclosed. In particular, the example methods, apparatus, and articles of manufacture generate signatures. Initially, a first plurality of filtered values are identified by performing a wavelet transform on a first frame of media samples. A first energy value is determined based on a first portion of the first plurality of filtered values, and a second energy value is determined based on a second portion of the first plurality of filtered values. A first descriptor of the first frame of media samples is determined based on a comparison of the first energy value and the second energy value. A first signature is generated based on the first descriptor.
109 Citations
19 Claims
-
1. A method for generating signatures, comprising:
-
identifying a first plurality of filtered values by performing a wavelet transform on a first frame of media samples; determining a first energy value based on a first portion of the first plurality of filtered values; determining a second energy value based on a second portion of the first plurality of filtered values; determining a first descriptor of the first frame of media samples based on a comparison of the first energy value and the second energy value; generating, via a processor, a first signature based on the first descriptor; determining a second descriptor of a second frame of media samples; and generating a second signature based on the second descriptor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An apparatus for generating signatures, comprising:
-
a processor system including a memory; and instructions stored in the memory that enable the processor system to; identify a first plurality of filtered values by performing a wavelet transform on a first frame of media samples; determine a first energy value based on a first portion of the first plurality of filtered values; determine a second energy value based on a second portion of the first plurality of filtered values; determine a first descriptor of the first frame of media samples based on a comparison of the first energy value and the second energy value; generate a first signature based on the first descriptor; determine a second descriptor of a second frame of media samples; and generate a second signature based on the second descriptor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A tangible machine accessible storage medium, excluding a signal, comprising instructions that, when executed, cause a machine to at least:
-
identify a first plurality of filtered values by performing a wavelet transform on a first frame of media samples; determine a first energy value based on a first portion of the first plurality of filtered values; determine a second energy value based on a second portion of the first plurality of filtered values; determine a first descriptor of the first frame of media samples based on a comparison of the first energy value and the second energy value; generate a first signature based on the first descriptor; determine a second descriptor of a second frame of media samples; and generate a second signature based on the second descriptor. - View Dependent Claims (16, 17, 18, 19)
-
Specification