Abstract: The object of the present invention is to provide a technique capable of effectively compressing point cloud data output from the ranging sensor. A data compression apparatus of the present invention includes a data acquisition unit (121) which acquires point cloud data including a plurality of sets each including a direction and a distance from a ranging sensor (11), a data conversion unit (122) which converts directions and distances in the sets into color signals, an image generation unit (123) which generates a bitmap Image by mapping the color signals into a two-dimensional data structure in accordance with the directions, and an image compression unit (124) which applies a predetermined image compression technique to the bitmap image.

Abstract: An image data collecting apparatus includes: an acquisition unit that acquires position information of a plurality of mobile bodies on which a photographing device is mounted, and a selecting unit that acquires, for each mobile body, the position information acquired for the plurality of mobile bodies, information indicating photographing ranges of the photographing devices mounted on the plurality of mobile bodies, and position information of a predetermined object, and selects a mobile body on which a photographing device that outputs collection target image data is mounted from the plurality of mobile bodies on the basis of the acquired information; a transmitting unit that transmits a collection instruction for image data which is a photographing result of the photographing device mounted on the mobile body to the selected mobile body; and a receiving unit that receives the image data transmitted from the mobile body having received the collection instruction.

Abstract: The present invention offers a network management technique that can realize effective acquisition of various data transmitted from terminals, while reducing the network congestion. In a network management system including a plurality of terminals that can transmit data, a plurality of destination devices that perform respective predetermined processes based on the data, a relay device arranged between them, and a management device communicable with the terminals, the destination devices, and the relay device, the management device receives a request regarding required data from the destination devices; and, in response to the request, instructs to integrate data items that are to be relayed to individual destination devices.

Abstract: The object of the present invention is to provide a technique capable of effectively compressing point cloud data output from the ranging sensor. A data compression apparatus of the present invention includes a data acquisition unit (121) which acquires point cloud data including a plurality of sets each including a direction and a distance from a ranging sensor (11), a data conversion unit (122) which converts directions and distances in the sets into color signals, an image generation unit (123) which generates a bitmap Image by mapping the color signals into a two-dimensional data structure in accordance with the directions, and an image compression unit (124) which applies a predetermined image compression technique to the bitmap image.

Abstract: The present invention offers a network management technique that can realize effective acquisition of various data transmitted from terminals, while reducing the network congestion. In a network management system including a plurality of terminals that can transmit data, a plurality of destination devices that perform respective predetermined processes based on the data, a relay device arranged between them, and a management device communicable with the terminals, the destination devices, and the relay device, the management device receives a request regarding required data from the destination devices; and, in response to the request, instructs to integrate data items that are to be relayed to individual destination devices.