Abstract
Recently, accidents such that seniors fall down from the bed in care facilities or hospitals are increased. To prevent these accidents, we have developed an awakening detection system using Neural Network (NN). In this paper, to confirm the detection capability of the awakening detection system in the clinical site, it is conducted that the detection experiment using the captured image in the clinical site for the detection. From the result of this experiment, the detection success rate of this experiment is low. So, we analyze the captured image in the clinical site. From the result of the histogram analysis, it proves that the fluctuation of brightness quantity makes decrease the detection capability. Therefore, to decrease the influence of the brightness quantity, the histogram of the captured image is equalized. Finally, it is verified that the histogram equalization reduce the effect of fluctuation of brightness quantity
