Simple Algorithms and Architectures for B-spline Interpolation March 1988 (vol. 10 no. 2) pp. 271-276
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/34.3889
It is proved that the Toeplitz binary value matrix inversion associated with mth-order B-spline interpolation can be implemented using only 2(m+1) additions. Pipelined architectures are developed for real-time B-spline interpolation based on simple running average filters. It is shown that an ideal interpolating function, which is approximated by a truncated sinc function with M half cycles, can be implemented using B-splines with M+2 multiplies. With insignificant loss of performance, the coefficients at the knots of the truncated sinc function can be approximated using coefficients which are powers of two. The resulting implementation requires only M+4m+6 additions. It is believed that the truncated sinc function approximated by zero-order B-spline functions actually achieves the best visual performance. [1] H. S. Hou and H. C. Andrews, "Cubic splines for image interpolation and digital filtering,"IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-26, pp. 508-517, 1978.
Index Terms:
picture processing; pipelined architecture; B-spline interpolation; filters; truncated sinc function; visual performance; interpolation; parallel architectures; picture processing; splines (mathematics)
Citation:
P.V. Sankar, L.A. Ferrari, "Simple Algorithms and Architectures for B-spline Interpolation," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 10, no. 2, pp. 271-276, Mar. 1988, doi:10.1109/34.3889 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||