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 operate in accordance with a tiered hierarchy having multiple different levels of quality, the tiered hierarchy having at least a relatively high level of quality and a relatively low level of quality, and wherein the first set of data elements is at the relatively high level of quality.
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, the method being performed in accordance with a tiered hierarchy having multiple different levels of quality, the tiered hierarchy having at least a relatively high level of quality and a relatively low level of quality, and wherein the first set of data elements is at the relatively high level of quality.
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;
- 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 instructions are performed in accordance with a tiered hierarchy having multiple different levels of quality, the tiered hierarchy having at least a relatively high level of quality and a relatively low level of quality, and wherein the first set of data elements is at the relatively high level of quality.
Dependencies are inferred from the claim text.