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Figure 4 | BMC Medical Informatics and Decision Making

Figure 4

From: Unified wavelet and gaussian filtering for segmentation of CT images; application in segmentation of bone in pelvic CT images

Figure 4

Sample Result. The original image is in the upper left corner. The image in the upper right corner is the image after cropping it to the region in which bone is found and histogram equalization. In the lower left corner is the image after Speckle Reducing Anisotropic Diffusion (SRAD) filtering. It can be observed that histogram equalization and SRAD filtering have an impact on the original image. The edges are maintained, contrast is enhanced, and texture is eliminated therefore eliminating some of the challenges in segmentation. In the lower right corner are results of segmentation. It can be noticed that the detected bone contour and shape are true to the actual bone contour and size.

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