Proposed Title :

FPGA Implementation of High Efficiency Video Coding Standard Deblocking Filter

Improvement of this Project:

• Spit the Deblocking filter 32×32, 16×16, 8×8, 4×4.

• Reduced the artifact

Software implementation:

• Modelsim
• Xilinx 14.2

Proposed System:

The deblocking filter reduces the blocking artifacts (visible discontinuities in the vidEO) caused by block-based encoding with strong quantization. It is applied by modifying samples along horizontal and vertical boundaries of PUs and TUs of size not smaller than 8×8 samples. Filtering is applied separately in 4×4 blocks (so-called P and Q blocks).

Boundary strength and Edge level adaptivity

• Boundary strength(BS) is calculated for boundaries that are either prediction unit boundaries or the transform unit boundaries.
• The boundary strength can take values as 0,1 or 2.
• For luma component, only block boundaries with BS values 1 or 2 are filtered. Therefore there is no filtering in static areas which avoids multiple subsequent filtering of same areas where pixels are copied from one picture to another with a residual equal to zero which can cause over smoothening.
• In case of chroma components, only boundaries with BS equal to 2 are filtered. Hence the block boundaries that are filtered have at least one of the two adjacent blocks intra predicted.

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A Deblocking Filter Hardware Architecture for the High Efficiency Video Coding Standard

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