Equivalent blur as a function of spurious response of a sampled imaging system: application to character recognition

摘要: Image sampling effects have been variously quantified as aliased signal, spatial and noise. However, a relationship between these characteristics human object recognition has not established in coherent, mathematical form. We present heuristic study that characterizes the performance degradation is due to spurious response of sampled imaging system an effective increase blur. A character experiment was performed which 20 observers responded 3500 pairs blur sample spacing. baseline created where probability determined function without sampling. The characters were then compared with this so effect on could be determined. Finally, response, describes overall observer recognition.