Biosignal and Biomedical Image Processing phần 10 pdf

... upper images were created by thresholding the intensity. The lower left image is a com- bination (logical OR) of the upper images and the lower right image adds a thresholded texture-based image. The ... intensity thresh- olded images are shown in Figure 12.15 (upper images; the upper right image has been inverted). These images are combined in the lower left image. The lower right...

Ngày tải lên: 06/08/2014, 00:21

... digital signal and image processing concerns. To the extent possible, each topic is introduced with the minimum amount of information required to use and understand the approach, and enough information ... required to expand or modify signal processing tools, while for biomedical engineers, signal processing techniques are tools to be used. For the biomedical engineer, a det...

Ngày tải lên: 06/08/2014, 00:20

... signal processing algorithms and data that can be used to evaluate a signal processing system under development. The Web is becoming an evermore useful tool in signal and image processing, and a ... a random time series with a narrow bandwidth (left) and broader bandwidth (right). Note the inverse relationship be- tween the autocorrelation function and the spectrum: the broad...

Ngày tải lên: 06/08/2014, 00:20

... 0.1, and an upper passband between 500 and 100 0 Hz (assuming f s /2 = 100 0) with the same ripple as the lower passband. The f , a , and dev vectors would be: f = [100 300 400 500] ; a = [101 ] ; and dev ... of these ranges and is the same length as a . For example, assume you desire a bandstop filter that has a passband between 0 and 100 with a ripple of 0.01, a stopband bet...

Ngày tải lên: 06/08/2014, 00:20

... time, t 0 , will always be zero, and an appropriate offset time, t 1 , is added during plot- ting. The time and frequency boundaries are calculated using Eqs. (7) and (9), and the resulting boundaries ... range of the Mexican wavelet. % Uses the equations for center time and frequency and for time % and frequency spread given in Eqs. (7 10) % TLFeBOOK Time–Frequency Analysis 17...

Ngày tải lên: 06/08/2014, 00:20

... Problem 5. % Example 8.5 and Figure 8 .10 Adaptive Noise Cancellation % Use an adaptive filter to eliminate sinusoidal noise from a % narrowband signal % % Generate signal and noise close all; clear ... three-level analysis filter bank. Examine the high frequency subband for evidence of the discontinuity. % Example 7.5 and Figures 7 .10 and 7.11. Discontinuity detection % Construct...

Ngày tải lên: 06/08/2014, 00:20

... four different image classes or encoding schemes are: indexed images, RGB images, intensity images, and binary images. The first two classes are used to store color images. In indexed images, the ... these images as a montage. Border the images with black for separation on the montage plot. Generate 12 frames, but reduce the image to 100 by 100 to save memory. % Example 10. 2 and F...

Ngày tải lên: 06/08/2014, 00:20

... window function, and it is thresholded and converted to a binary image. % Example 10. 4 and Figures 10. 5 and 10. 6 % Demonstration of various image functions. % Load all frames of the MRI image in mri.tif ... image I I_add = imadd(I, J); % Adds image I and J (images and/ % or constants) to form image % I_add I_sub = imsubtract(I, J); % Subtracts J from image I I_...

Ngày tải lên: 06/08/2014, 00:20

... 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 ... Transformations, and Registration 335 F IGURE 11.13 Unaided image registration requiring several affine transforma- tions. The left image is the original (reference) image...

Ngày tải lên: 06/08/2014, 00:21