Journal: IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Article Title: Improved Super-Resolution Ultrasound Microvessel Imaging with Spatiotemporal Nonlocal Means Filtering and Bipartite Graph-Based Microbubble Tracking
doi: 10.1109/TUFFC.2017.2778941
Figure Lengend Snippet: Processes of microbubble localization. (a) shows an example of a local region of the microbubble data, followed by 2D spatial interpolation (b), normalized 2D cross-correlation with the derived system PSF (c), cross-correlation coefficient thresholding (d), and finally identifying microbubble center locations by searching local maximum correlation coefficient. (e) shows an example of the localization indicated by the red crosses. (f) shows a zoomed-in image of a microbubble signal and (g) shows the derived PSF signal based on (f). (h) shows one example of the microbubble localization result on the full FOV data.
Article Snippet: The data was then spatially interpolated to 0.02 mm resolution using 2D linear interpolation (the “interp2.m” function in Matlab), as shown in .
Techniques: Derivative Assay