Digital filter with spatial scalability

Filtering device for filtering an input signal and comprising:

• a first set of multiplying units for filtering of samples of the input signal with a first phase of filter coefficients,
• at least one first summing unit for adding together the first filtered samples for forming a first sum signal,
• at least one further set of multiplying units for filtering samples of the input signal with at least one further phase of filter coefficients,
• at least one further summing unit for adding together the further filtered samples for forming at least one further sum signal, and
• at least one normalizing unit dividing the first sum signal with the sum of the first phase of filter coefficients and each further sum signal with the sum of the corresponding phase of filter coefficients for outputting at least the thus normalized sum signals as a first and further output signals from the filter.

Video coding device including at least one filter for filtering signals, which filter comprises:

• a first set of multiplying units for filtering of samples of the input signal with a first phase of filter coefficients,
• at least one first summing unit for adding together the first filtered samples for forming a first sum signal,
• at least one further set of multiplying units for filtering samples of the input signal with at least one further phase of filter coefficients,
• at least one further summing unit for adding together the further filtered samples for forming at least one further sum signal, and
• at least one normalizing unit dividing the first sum signal with the sum of the first phase of filter coefficients and each further sum signal with the sum of the corresponding phase of filter coefficients for outputting at least the thus normalized sum signals as a first and further output signals from the filter.