Guest Editorial: Special Issue on Real-Time Defect Detection

Quality control is becoming a relevant issue for many products. In general, quality control presents the folfied optical flow constraint and on energy minimization. Fast defect localization constitutes the basis for lowing interrelated aspects: the assessment of quality by means of a set of quality indicators, the detection of defects as resulting from the quality indicators or exceptional defects, the classification of defects in a multi-dimensional space, and the assessment of defect location and dimension.