Abstract: Methods and systems may provide for receiving an input image having an input pixel density and defining a single filter based on a sub-pixel modification value, wherein the single filter has a working lattice density that is greater than the input pixel density. Additionally, the single filter and the input image may be used to generate an output image. In one example, defining the single filter includes converting the input pixel density to the working lattice density at an aperture level of the single filter.

Abstract: Methods and systems may provide for receiving an input image having an input pixel density and defining a single filter based on a sub-pixel modification value, wherein the single filter has a working lattice density that is greater than the input pixel density. Additionally, the single filter and the input image may be used to generate an output image. In one example, defining the single filter includes converting the input pixel density to the working lattice density at an aperture level of the single filter.

Abstract: Systems and methods of blurring images may involve partitioning at least a portion of a non-separable finite impulse response (FIR) filter into a plurality of constant response sub-filters, wherein each constant response sub-filter has a rectangular aperture. In addition, the plurality of constant response sub-filters may be used to blur an image. In one example, the non-separable FIR filter may optionally be partitioned into one or more satellite sub-filters, wherein the one or more satellite sub-filters are also used to blur the image.

Abstract: Systems and methods of blurring images may involve partitioning at least a portion of a non-separable finite impulse response (FIR) filter into a plurality of constant response sub-filters, wherein each constant response sub-filter has a rectangular aperture. In addition, the plurality of constant response sub-filters may be used to blur an image. In one example, the non-separable FIR filter may optionally be partitioned into one or more satellite sub-filters, wherein the one or more satellite sub-filters are also used to blur the image.

Abstract: A video codec is used to reduce the bandwidth of a video signal for storage and/or transmission. To transmit an uncoded quality color NTSC television signal is digitized form requires channel bandwidth typically 90-120 Mb/s for the signal in the composite format and 216 Mb/s for the signal in the component format. The proposed video codec achieves a reduction of the required transmission bandwidth by a factor of 2-3 by splitting the imput signal into two channels, a main and a complementary channel, and by applying different coding techniques in each. In the main channel the input signal is subsampled and DPCM encoded using a fixed-rate companded quantization, whereas VWL and block coding is used to encode the complementary channel carrying the interpolation error signal. This arrangement seeks to ensure high picture quality while being easily adaptable to different transmission rates and signal formats.