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This paper proposes an automatic method for the detection of lumen contours in intravascular OCT images with guide wire shadow artifacts. This algorithm is divided into five main procedures: pre-processing, an Otsu binarization approach, an intensity curve approach, a lumen contour position correction, and image reconstruction and contour extraction. The 30 IVOCT images from six anonymous patients...
In this paper, we introduce and propose a new Digital Zoom method based on the HCI color model which is a new color representation scheme. The HCI color model consists of three channels; hue, chroma, and intensity. Since this new color model is not expanded to a cylindrical form, not only the problem of saturation dependence on the brightness can be avoided, but also the fully saturated achromatic...
In this paper, we introduce and propose a new color representation scheme, the HCI color model, and its usage. The HCI color model consists of three channels; hue, chroma, and intensity. Using the dichromatic reflection model, it is proved that hue is robust against illumination effects. Since this new color model is not expanded to a cylindrical form, not only the problem of saturation dependence...
In this paper, the fuzzy flood fill mean shift algorithm is introduced. This algorithm is developed for the methodology of robust segmentation by improving the mean shift algorithm through the fuzzy kernels and the flood fill technique, instead of those based on the spatial bandwidth. Due to this exchange, the flood fill mean shift involves only one parameter, the range bandwidth, which is less sensitive...
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