Biosignal and Biomedical Image Processing phần 5 ppt

Biosignal and Biomedical Image Processing phần 5 ppt

... Uses the equations for center time and frequency and for time % and frequency spread given in Eqs. (7–10) % TLFeBOOK Time–Frequency Analysis 1 75 F IGURE 6. 15 The Rihaczek-Margenau distribution ... evidenced by the appearance of energy slightly before 0 .5 sec and slightly after 1 .5 sec, and energies at frequen- cies other than 10 and 40 Hz. In this example, the time resolut...

Ngày tải lên: 06/08/2014, 00:20

Biosignal and Biomedical Image Processing phần 9 pot

... rotated image and the origin al image. ) 9. Load a frame of the MRI image ( mri.tif ) and perform a spatial transfor- mation that first expands the image horizontally by 20% then rotates the image by ... montage of the first 12 images. 8. Load frame 12 of mri.tif and use imrotate to rotate the image by 15 degrees clockwise. Also reduce image contra st of the rotated image...

Ngày tải lên: 06/08/2014, 00:21