The present invention discloses a method and a system for enhancing accuracy of human counting in at least one frame of a captured image in a real-time in a predefined area. The present invention detects human in one or more frames by using at least one human detection modality for obtaining the characteristic result of the captured image. The invention further calculates an activity probability associated with each human detection modality. The characteristic results and the activity probability are selectively integrated by using a fusion technique for enhancing the accuracy of the human count and for selecting the most accurate human detection modality. The human is then performed based on the selection of the most accurate human detection modality.