High Throughput DA-Based DCT With High Accuracy Error-Compensated Adder Tree

@article{Chen2011HighTD,
  title={High Throughput DA-Based DCT With High Accuracy Error-Compensated Adder Tree},
  author={Yuan-Ho Chen and Tsin-Yuan Chang and Chung-Yi Li},
  journal={IEEE Transactions on Very Large Scale Integration (VLSI) Systems},
  year={2011},
  volume={19},
  pages={709-714}
}
In this brief, by operating the shifting and addition in parallel, an error-compensated adder-tree (ECAT) is proposed to deal with the truncation errors and to achieve low-error and high-throughput discrete cosine transform (DCT) design. Instead of the 12 bits used in previous works, 9-bit distributed arithmetic-precision is chosen for this work so as to meet peak-signal-to-noise-ratio (PSNR) requirements. Thus, an area-efficient DCT core is implemented to achieve 1 Gpels/s throughput rate with… CONTINUE READING
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