Abstract: The people counting device includes an image acquisition unit to acquire an image from an imaging device, a head coordinate detection unit to detect a head coordinate of a target person from the image, a foot coordinate estimation unit to estimate a foot coordinate of the target person from the detected head coordinate, an individual region detection unit to perform region segmentation of the image and to give an attribute to each of regions, a foot coordinate correction unit to determine whether the target person overlaps another person based on the given attribute and to correct the foot coordinate of the target person estimated by the foot coordinate estimation unit when the persons are determined to overlap each other, a foot coordinate region inside/outside determination unit to determine whether the foot coordinate exists in a detection region set in the image, and a people counting unit to count foot coordinates.

Abstract: The people counting device includes an image acquisition unit to acquire an image from an imaging device, a head coordinate detection unit to detect a head coordinate of a target person from the image, a foot coordinate estimation unit to estimate a foot coordinate of the target person from the detected head coordinate, an individual region detection unit to perform region segmentation of the image and to give an attribute to each of regions, a foot coordinate correction unit to determine whether the target person overlaps another person based on the given attribute and to correct the foot coordinate of the target person estimated by the foot coordinate estimation unit when the persons are determined to overlap each other, a foot coordinate region inside/outside determination unit to determine whether the foot coordinate exists in a detection region set in the image, and a people counting unit to count foot coordinates.

Abstract: When a mail is shared, it is necessary to store data of the mail to be shared in a storage device on a server. Recently, however, an attachment file having large capacity like image data has been increasingly used, and a method for storing mail data in a storage device of a server involves a problem of large capacity loads. To solve such problem, an electronic mail system which sends and receives an e-mail between a first terminal device and a second terminal device transmits to the second terminal device link information about a shared mail which is an e-mail designated to be shared out of e-mails stored in the above-stated first terminal device, and if transmission of the shared mail is requested by using the link information from the second terminal device, the first terminal device transmits the shared mail to the second terminal device.