Data processing apparatuses, methods, computer programs and computer-readable media
AssigneeV-Nova International Limited
InventorDavid Handford
Life of this patent
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Abstract
A first value of a first data element in a first set of data elements is obtained, the first set of data elements being based on a first time sample of a signal. A second value of a second data element in a second set of data elements is obtained, the second set of data elements being based on a second, later time sample of the signal. A measure of similarity is derived between the first value and the second value. Based on the derived measure, a quantisation parameter useable in performing quantisation on data based on the first time sample of the signal is determined. Output data is generated using the quantisation parameter.
Claims20
An apparatus configured to:
- obtain a first value of a first data element in a first set of data elements, the first set of data elements being based on a first time sample of a signal;
- obtain a second value of a second data element in a second set of data elements, the second set of data elements being based on a second, later time sample of the signal;
- derive a measure of similarity between the first value and the second value;
- determine, based on the derived measure of similarity, at least one quantisation parameter useable in performing quantisation on data based on the first time sample of the signal;
- and
- generate output data using the at least one quantisation parameter,
- wherein the apparatus is configured to:
- generate an overall similarity score for the first time sample by combining a plurality of similarity scores, each of the plurality of similarity scores being associated with a different data element in the first set of data elements;
- and
- determine the at least one quantisation parameter based on the overall similarity score.
A method comprising:
- obtaining a first value of a first data element in a first set of data elements, the first set of data elements being based on a first time sample of a signal;
- obtaining a second value of a second data element in a second set of data elements, the second set of data elements being based on a second, later time sample of the signal;
- deriving a measure of similarity between the first value and the second value;
- determining, based on the derived measure of similarity, at least one quantisation parameter useable in performing quantisation on data based on the first time sample of the signal;
- and
- generating output data using the at least one quantisation parameter,
- wherein the method further comprises:
- generating an overall similarity score for the first time sample by combining a plurality of similarity scores, each of the plurality of similarity scores being associated with a different data element in the first set of data elements;
- and
- determining the at least one quantisation parameter based on the overall similarity score.
A non-transitory computer-readable medium storing computer program code comprising instructions that, if executed by a computer processor would cause an apparatus to:
- obtain a first value of a first data element in a first set of data elements, the first set of data elements being based on a first time sample of a signal;
- obtain a second value of a second data element in a second set of data elements, the second set of data elements being based on a second, later time sample of the signal;
- deriving a measure of similarity between the first value and the second value, including generating an overall similarity score for the first time sample by combining a plurality of similarity scores, each of the plurality of similarity scores being associated with a different data element in the first set of data elements;
- determine, based on the derived measure of similarity, at least one quantisation parameter useable in performing quantisation on data based on the first time sample of the signal, the at least one quantisation parameter being determined based on the overall similarity score;
- and
- generate output data using the at least one quantisation parameter.
Dependencies are inferred from the claim text.