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A road traffic census is an investigation to understand the realities of the road traffic in Japan, and there are the general traffic density investigation and the parking investigation. Especially, the general traffic density investigation measures the traffic of the pedestrian, the bicycle, and the car every one hour on the weekday or holiday. Therefore, grasping local environment and local traffic density can be estimated the traffic for the future by executing road traffic census. Information obtained from these traffic density investigations will be the basic source to be applied to road repair plan or maintenance management as well as the planning of various road policies. A method where the investigator measures by observation, holding a counter with one hand, is being adopted for traffic density investigation. However, since the current measurement method stations an investigator on every measuring spot, only dispersed traffic density within each measuring spot can be acquired, and a great deal of time and labor cost will be required. So recently, with the development of information technology, a method of analyzing and estimating the traffic density as modeled flow information by automatically tracking the moving object with the system to acquire continuous movement history information is being conceived. There is a research that applies GPS or movement body communication system as one of the method for automatically tracking the moving object from the system. However, because this method relies on the accuracy of the medium that acquires positional information, the result would be inaccurate depending on the measuring spot. Therefore, a research on the automatic measurement of people’s flow information based on the video image filmed by video camera is being widely performed. However, since a method of measurement, using a video camera placed on the ceiling facing vertically downwards so that people do not overlap, is being adopted in the existing research , the locations where video camera can be fixed will be limited. Furthermore, in the existing research , due to the adoption of measurement method by stereovision, cost incurred on camera placements will be Abstract: A road traffic census is an investigation to understand the realities of the road traffic in Japan, and there are the general traffic density investigation and the parking investigation. Especially, the general traffic density investigation measures the various traffics of the pedestrian, the bicycle, and the car every one hour on the weekday or holiday. Therefore, grasping local environment and local traffic density can be estimated the traffic for the future by executing road traffic census. Recently, with a development of information technology, the traffic density investigation can automatically be measured using the animation filmed with the video camera. In an existing research, a general and highly accurate method of detecting people is not established. Then, in this research, we try to establish it. Firstly, the area of people is specified by the background subtraction method and the smoothing process. Secondly, the feature of people is extracted by the labeling. Finally, the movement of people is measured from the area lap rate of the labeling. This research is applied to the crowded space like the elevator, and we aim for the development of a general and highly accurate system on measurement for counting people.

RESEARCH DEVELOPMENT ON MEASUREMENT FOR COUNTING PEOPLE IN CROWDED SPACE