transform'. Examples of use Template matching has various applications and is used in such fields as face recognition (see facial recognition system) and medical image processing. Systems have been developed and used in the past to count the number of faces that walk across part of a bridge within a certain amount of time. Other systems include automated calcified nodule detection within digital chest X-rays. Recently, this method was implemented in geostatistical simulation which could provide a fast algorithm. See also Facial recognition system Pattern recognition Computer vision Elastic Matching References External links Template Matching in OpenCV Visual Object Recognition using Template Matching Rotation, scale, translation-invariant template matching demonstration program perspective-invariant template matching An extensive template matching bibliography up to 2009 Image processing