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DCT_IDCT
to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression
for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution
now compare our special 8X8 functions with the internal general functions
use this code:
A = int32(100*rand(8,8))
tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc
tic for i = 1 : 1000 idct2(dct2(A)) end toc
i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)
- 2007-12-05 18:28:42下载
- 积分:1
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H0334410
NNM-i Developer s Toolkit Guide
- 2015-01-29 15:24:28下载
- 积分:1
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terminal_position_lookup_table
If the used buffer size is smaller than the actual buffer size, regenerate the lookup table and write the new table to the file.
- 2015-10-15 11:17:43下载
- 积分:1
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f_cma
the code uses cma for channel identification and equalization
- 2010-11-12 18:27:31下载
- 积分:1
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matlabfrq
信号检测与估计中的算法频率估计,是三种不同算法对信号频率的估计(Signal detection and estimation of the frequency estimation algorithm)
- 2013-12-09 09:30:43下载
- 积分:1
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poleo-de-datos
an a dedicated hyperterminal
- 2014-02-04 00:25:11下载
- 积分:1
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Highspeedvehiclenavigationresearch1
高速车辆组合导航研究,主要研究卡尔曼滤波,扩展卡尔曼滤波(High-speed vehicle navigation research, major research Kalman filter, extended Kalman filter)
- 2009-04-21 21:23:17下载
- 积分:1
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matlab_carNOsegmentationprogram
采用matlab开发的用于车牌分割的开发程序,识别率高(The development of the use of matlab for the development of procedures for license plate segmentation, recognition rate is high)
- 2009-03-29 11:34:02下载
- 积分:1
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zhouqitu
利用周期图法对信号进行功率谱估计,源代码,有详细的注解,供参考(Periodogram method using the signal power spectrum estimation, source code, there are detailed notes for reference)
- 2009-11-19 11:49:46下载
- 积分:1
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ASCI
Auto sequential current source inverter.circuit equaally resmbels which is in in p.s.bimbra
- 2011-06-18 15:30:42下载
- 积分:1