Compressive sensing with joint signal compression and quality control
AssigneeNokia of America Corporation
InventorsRaziel Haimi-Cohen, Xin Yuan
Life of this patent
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Abstract
An encoder determines a compression ratio for compressive sensing and a quantization level used to quantize a media signal based on a target indicator. The encoder accesses compressive sensing measurements performed using the compression ratio and quantizes the compressive sensing measurements based on the quantization level. A decoder receives a compressed signal generated from the signal acquired by the signal acquisition device using the compression ratio and the quantization level. The decoder also receives information indicating the compression ratio or the quantization level. The decoder decompresses the compressed signal based on the compression ratio and the quantization level.
Claims9
A method comprising:
- receiving a compressed signal generated from a media signal using a compression ratio for compressive sensing and a quantization level used to quantize compressive measurements of the media signal, wherein the compression ratio and the quantization level are determined based on a target indicator and based on a functional relationship between the quantization level and a number of the compressive measurements of the media signal;
- receiving information indicating at least one of the compression ratio or the quantization level;
- and
- decompressing the compressed signal based on the compression ratio and the quantization level.
A decoder comprising:
- a transceiver to receive a compressed signal generated from a media signal using a compression ratio for compressive sensing and a quantization level used to quantize compressive measurements of the media signal, wherein the compression ratio and the quantization level are determined based on a target indicator and based on a functional relationship between the quantization level and a number of the compressive measurements of the media signal,
- the transceiver to receive information indicating at least one of the compression ratio and the quantization level;
- and
- a processor to decompress the compressed signal based on the compression ratio and the quantization level.
A non-transitory computer-readable medium embodying programmed instructions which, when executed by at least one processor, directs the at least one processor to:
- receive a compressed signal generated from a media signal using a compression ratio for compressive sensing and a quantization level used to quantize compressive measurements of the media signal, wherein the compression ratio and the quantization level are determined based on a target indicator and based on a functional relationship between the quantization level and a number of the compressive measurements of the media signal;
- receive information indicating at least one of the compression ratio and the quantization level;
- and
- decompress the compressed signal based on the compression ratio and the quantization level.
Dependencies are inferred from the claim text.