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A Gabor wavelet based palmprint recognition algorithm is introduced in this paper. With high recognition rate and low computational complexity, the algorithm is suitable for portable platform. TI TMS320VC5509A is a high performance digital signal processor (DSP) provided by Texas Instruments Corporation. By using the 5509A chip as the core processor, working with AVR microcontroller, CPLD device and...
SPIHT is computationally very fast and among the best image compression algorithms known today. According to statistic analysis of the output binary stream of SPIHT encoding, propose a simple and effective method combined with Huffman encode for further compression. A large number of experimental results are shown that this method saves a lot of bits in transmission, further enhanced the compression...
It is difficult to establish a precise mathematical model in extended Kalman filter (EKF) data fusion algorithm for GPS/DR integrated vehicle navigation system, a novel data fusion algorithm is put forward, which based on wavelet packet analysis. Firstly, the algorithm chooses best wavelet packet group for GPS, odometer and gyroscope signals with least cost principle, and does dynamic pre-filtering...
This paper presents an improved image compression algorithm to make up a deficiency arising when the embedded zerotree wavelet encoding (EZW) is employed to uniformly scan the low and high frequency coefficients. According to the feature of the wavelet transform's energy distribution, the scalar quantization is used to quantify sub-band coefficients of high frequency in order to reduce the IZ(Isolated...
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