TY  - JOUR
T1  - An algorithm for fast adaptive image binarization with applications in radiotherapy imaging.
JF  - IEEE Transactions on medical imaging
A1  - Sund, T.
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609548774
AB  - Locally adaptive image binarization with a sliding-window threshold can be an effective tool for various image processing tasks. We have used the method for the detection of bone ridges in radiotherapy portal images. However, a straight-forward implementation of sliding-window processing is too time consuming for routine use. Therefore, we have developed a new thresholding criterion suitable for incremental update within the sliding window, and we show that our algorithm gives better results on difficult portal images than various publicly available adaptive thresholding routines. For small windows, the routine is also faster than an adaptive implementation of the Otsu algorithm that uses interpolation between fixed tiles, and the resulting images are equally good.
KW  - Otsu algorithm.
KW  - Adaptive implementation.
KW  - Adaptive thresholding routines.
KW  - Algorithm.
KW  - Bone ridge detection.
KW  - Coregistration.
KW  - Electronic portal imager.
KW  - Fast adaptive image binarization.
KW  - Fixed tiles.
KW  - Image processing tasks.
KW  - Incremental update.
KW  - Interpolation.
KW  - Locally adaptive image binarization.
KW  - Radiotherapy imaging.
KW  - Radiotherapy portal images.
KW  - Sliding-window threshold.
KW  - Small windows.
KW  - Thresholding criterion.
ER  -