System and method for effectively performing an adaptive quantization procedure
First Claim
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1. A system for performing an adaptive quantization procedure, comprising:
- an energy calculator that determines energy values for subbands of input data; and
a quantizer that receives initial quantization parameters that each correspond to a different respective one of said subbands, said quantizer calculating adaptive quantization parameters from said initial quantization parameters by utilizing corresponding ones of said energy values, said quantizer then utilizing said adaptive quantization parameters to generate quantized coefficients for said subbands during said adaptive quantization procedure.
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Abstract
A system and method for effectively performing an adaptive quantization procedure includes an energy calculator that initially determines energy values for subbands of input data. A quantizer receives initial quantization parameters that each correspond to a different respective one of the subbands. The quantizer calculates adaptive quantization parameters from the initial quantization parameters by utilizing corresponding ones of the energy values. The quantizer then utilizes the adaptive quantization parameters to generate quantized coefficients for the subbands during the adaptive quantization procedure.
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22 Claims
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1. A system for performing an adaptive quantization procedure, comprising:
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an energy calculator that determines energy values for subbands of input data; and a quantizer that receives initial quantization parameters that each correspond to a different respective one of said subbands, said quantizer calculating adaptive quantization parameters from said initial quantization parameters by utilizing corresponding ones of said energy values, said quantizer then utilizing said adaptive quantization parameters to generate quantized coefficients for said subbands during said adaptive quantization procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for performing an adaptive quantization procedure, comprising:
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determining energy values for subbands of input data by utilizing an energy calculator; using a quantizer for; generating initial quantization parameters that each correspond to a different respective one of said subbands; calculating adaptive quantization parameters from said initial quantization parameters by utilizing corresponding ones of said energy values; and utilizing said adaptive quantization parameters to generate quantized coefficients for said subbands during said adaptive quantization procedure.
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Specification