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Biomedical Signal and Image Processing
15.4 Read the image in file “p_15_4.jpg” and display it. The file on the left contains
MR images of the feet, and the right side shows the ankle.*
a. Split the two images.
b. Use both Canny and the Laplacian of Gaussian edge detection method to
find the boundaries of the femur. Compare the edge detection results.
c. C hoose a seed point in the middle of the bones in the foot each region to
start the region growing process.
d. Find the spaces between the bones in the same manner.
15.5 Read images “p_15_5.jpg” and display it. Image “p_15_5.jpg” is an MR image
of the brain with activity in the visual cortex of the brain.* The left side is a
posterior view, and the image on the right is an axial view in the caudal direction with the eyes on top.
a. Split the two images.
b. Use the Laplacian of Gaussian edge detection method to find the boundaries of the active region indicated by the blue arrows (the BOLD section).
c. C hoose a seed point in the middle of the visual activity section to start the
region growing process.
15.6 Read the image in file “p_15_6.jpg” and display it. The file contains MR
images of the knee, with a detail of the meniscus on the left.* Both images are
axial views.
a. Split the two images.
b. Use the Laplacian of Gaussian edge detection method to find the boundaries
of the meniscus.
c. Choose a seed point in the middle of the bones in the knee each region to
start the region growing process.
d. Find the spaces between the bones in the same manner.
* Courtesy of Philips Medical Systems.
Biomedical Signal and Image Processing
15.4 Read the image in file “p_15_4.jpg” and display it. The file on the left contains
MR images of the feet, and the right side shows the ankle.*
a. Split the two images.
b. Use both Canny and the Laplacian of Gaussian edge detection method to
find the boundaries of the femur. Compare the edge detection results.
c. C hoose a seed point in the middle of the bones in the foot each region to
start the region growing process.
d. Find the spaces between the bones in the same manner.
15.5 Read images “p_15_5.jpg” and display it. Image “p_15_5.jpg” is an MR image
of the brain with activity in the visual cortex of the brain.* The left side is a
posterior view, and the image on the right is an axial view in the caudal direction with the eyes on top.
a. Split the two images.
b. Use the Laplacian of Gaussian edge detection method to find the boundaries of the active region indicated by the blue arrows (the BOLD section).
c. C hoose a seed point in the middle of the visual activity section to start the
region growing process.
15.6 Read the image in file “p_15_6.jpg” and display it. The file contains MR
images of the knee, with a detail of the meniscus on the left.* Both images are
axial views.
a. Split the two images.
b. Use the Laplacian of Gaussian edge detection method to find the boundaries
of the meniscus.
c. Choose a seed point in the middle of the bones in the knee each region to
start the region growing process.
d. Find the spaces between the bones in the same manner.
* Courtesy of Philips Medical Systems.