Fig. 5From: Feature exploration for biometric recognition using millimetre wave body imagesShape context example. Example of the computation of a shape context descriptor for two single points within the eight digit shape. Image (a) and (c) represent a point within the eight digit shape and its respective log-polar histogram while image (b) and (d) a different point within the same digit and its associated log-polar histogram. Images extracted from [35]Back to article page