Segmentation by retrieval with guided random walks: Application to left ventricle segmentation in MRI

► A new random walks formulation is defined that can incorporate prior knowledge. ► Segmentation is guided by candidate that is dynamically retrieved from database. ► New dataset can be used directly as prior without generating any model. ► Accurate segmentation results; evaluation on 104 MRI dataset. ► Worst-case scenario produces conventional random walks performance.