Patent ID: 11955994
Assignee: V-NOVA INTERNATIONAL LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An apparatus according to claim 7, the apparatus being configured to:
derive the representation of the first time sample of the signal at the relatively low level of quality by:
performing a downsampling operation on the first representation of the first time sample of the signal to derive a preliminary representation,
instructing an encoding operation on the preliminary representation to generate encoded data at the relatively low level of quality,
instructing a decoding operation on the encoded data to generate decoded data at the relatively low level of quality, and
obtaining the representation at the relatively low level of quality based on the decoded data;
derive the second representation of the first time sample of the signal by performing an upsampling operation on the representation of the first time sample of the signal at the relatively low level of quality; and
obtain the first set of data elements by comparing the first representation of the first time sample of the signal with the second representation of the first time sample of the signal.