Abstract: An information processing apparatus according to the present disclosure includes: a projection unit configured to arrange a predetermined number of virtual points in a front direction of an imaging device that captures a first image, by using an estimated position of the imaging device as a starting point, and project the virtual points onto each of a plurality of images used for generating an environment map being three-dimensional information; an image extraction unit configured to extract a second image from the plurality of images, based on a result of the projection of the virtual points; and an estimation unit configured to estimate, by using a feature point included in a target image being a target for estimating a position and a pose of an imaging device and a feature point included in the second image, aa position and a pose of the imaging device that captures the target image.

Abstract: An object is to provide a map generation apparatus for improving the quality of an environment map created using virtual images. A map generation apparatus (10) according to the present disclosure includes: a map generation unit (11) configured to generate a three-dimensional map showing an environment around a photographing device by identifying shooting locations of a plurality of still images shot by the photographing device and restoring three-dimensional positions of feature points marked in each image of the plurality of the still images; a generation unit (12) configured to generate a virtual image when the three-dimensional positions of each of the feature points on the three-dimensional map corresponding to the feature points in the still images are shot from a virtual viewpoint; and an update unit (13) configured to update the three-dimensional map with reference to the virtual feature points in the virtual image.

Abstract: A positioning device includes an acquisition unit that acquires an environmental map of a target area being generated by using an image processing technique for estimating a three-dimensional shape of a target included in a two-dimensional image, and a plurality of captured images being used for generating the environmental map, an image retrieval unit that extracts, from a plurality of the captured images, a similar image having a feature vector similar to a feature vector determined based on a feature amount included in an input image, and an estimation unit that estimates a position and an attitude of an imaging device that has captured the input image by using a first feature point group of the input image and a third feature point group in the environmental map associated to a second feature point group of the similar image being matched with the first feature point group.

Abstract: An image processing apparatus includes a conversion unit for converting moving image data generated in an imaging apparatus into a plurality of still image data pieces, an image quality calculation unit for calculating an image quality of each still image represented by one of the plurality of still image data pieces, and a selection unit for selecting a still image data piece for image processing to be used for image processing. The selection unit selects still image data pieces satisfying a reference quality as the still image data piece(s) for image processing from among the plurality of still image data pieces arranged in an order of captured time if it is determined that a rotation angle of the imaging apparatus when the first still image data piece included in the plurality of still image data pieces is captured exceeds a designated angle.

Abstract: A wireless communication system according to the present invention includes a transmission control device and a reception control device configured to communicate with each other via at least one wireless link established in a wireless network, the transmission control device including a composite signal generation unit configured to select at least one signal from a predetermined number of signals to generate a composite signal and a multipath control unit configured to transmit the composite signal via the at least one wireless link, the reception control device including a multipath control unit configured to receive the composite signal from the at least one wireless link and a signal recovery unit configured to accumulate the received composite signal and to recover the predetermined number of signals from the predetermined number or more of the composite signals, the predetermined number being 1 or more.

Abstract: A communication load estimation system is provided with a load estimation means 501 for estimating a communication load of a wireless base station to be an object of estimation, using at least: a network parameter which is a parameter concerning the number of antennas used for signal transmission of the wireless base station; a first quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total reception power; and a second quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.

Abstract: A communication load estimation system is provided with a load estimation means 501 for estimating a communication load of a wireless base station to be an object of estimation, using at least: a network parameter which is a parameter concerning the number of antennas used for signal transmission of the wireless base station; a first quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total reception power; and a second quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.

Abstract: In order to reduce wasteful delays occurring when a mobile terminal whose RRC state is a state wherein communication is possible transfers in a temporarily stopped state, a distribution sequence determination device, which determines the distribution sequence for push messages transmitted to each of multiple terminals, determines the distribution sequence on the basis of whether each of the multiple terminals is in a state wherein communication is possible or is in a temporarily stopped state, so as to transmit the push messages to each of the multiple terminals in a distribution sequence in which terminals in a state wherein communication is possible are given priority over terminals in the temporarily stopped state.

Abstract: A message distributing system of the present invention includes: a mobile terminal; a service server which distributes a message to the mobile terminal; a message distributing apparatus which repeats the message and a request for distribution of the message that are provided by the service server; and a network apparatus which transmits the message, that is provided by the message distributing apparatus; to the mobile terminal. The message distributing apparatus sets a retransmission control time; which is used for controlling a time of retransmission of the message, on the basis of the request for distribution, and controls the time of retransmission to the network apparatus on the basis of the retransmission control time.

Abstract: A terminal, a message distribution system, a message distribution method, and a message distribution program are provided, which are capable of reliably delivering a push message to the terminal from a push server, regardless of a type of network utilized by the terminal, while reducing a processing load of the push server.

Abstract: Provided are a delivery device, a communication system, a load balancing method, and a load balancing program that enable processing loads for maintaining connections with terminals to be balanced over time, and enable the real time property of message delivery to be maintained for an event notification service.

Abstract: There is provided a relay server 20 relaying communications between terminals using an application. Each terminal 10 includes a voice call means 11 which performs a voice call process, and a voice call information transmission means 12 which, when the voice call process is performed by the voice call means 11, transmits to the relay server 20 a voice call status change notice inclusive of information for identifying the terminal 10 and indicative of voice call status having been changed, the transmission being performed by communication using the application. Upon receipt of communication data through communication using the application from a communication source terminal 10, the relay server 20 identifies a communication destination terminal based on the voice call status change notice and transmits the communication data to the identified communication destination terminal.

Abstract: A message distributing system of the present invention includes: a mobile terminal; a service server which distributes a message to the mobile terminal; a message distributing apparatus which repeats the message and a request for distribution of the message that are provided by the service server; and a network apparatus which transmits the message, that is provided by the message distributing apparatus, to the mobile terminal. The message distributing apparatus sets a retransmission control time, which is used for controlling a time of retransmission of the message, on the basis of the request for distribution, and controls the time of retransmission to the network apparatus on the basis of the retransmission control time.

Abstract: In order to reduce wasteful delays occurring when a mobile terminal whose RRC state is a state wherein communication is possible transfers in a temporarily stopped state, a distribution sequence determination device, which determines the distribution sequence for push messages transmitted to each of multiple terminals, determines the distribution sequence on the basis of whether each of the multiple terminals is in a state wherein communication is possible or is in a temporarily stopped state, so as to transmit the push messages to each of the multiple terminals in a distribution sequence in which terminals in a state wherein communication is possible are given priority over terminals in the temporarily stopped state.

Abstract: Provided are a delivery device, a communication system, a load balancing method, and a load balancing program that enable processing loads for maintaining connections with terminals to be balanced over time, and enable the real time property of message delivery to be maintained for an event notification service.

Abstract: A terminal, a message distribution system, a message distribution method, and a message distribution program are provided, which are capable of reliably delivering a push message to the terminal from a push server, regardless of a type of network utilized by the terminal, while reducing a processing load of the push server.

Abstract: There is provided a relay server 20 relaying communications between terminals using an application. Each terminal 10 includes a voice call means 11 which performs a voice call process, and a voice call information transmission means 12 which, when the voice call process is performed by the voice call means 11, transmits to the relay server 20 a voice call status change notice inclusive of information for identifying the terminal 10 and indicative of voice call status having been changed, the transmission being performed by communication using the application. Upon receipt of communication data through communication using the application from a communication source terminal 10, the relay server 20 identifies a communication destination terminal based on the voice call status change notice and transmits the communication data to the identified communication destination terminal.

Abstract: Provided is an information processing device capable of executing a larger variety of processes on screen data on the basis of motion of the device body.

Abstract: A message relay server includes a call state control section that acquires call state data containing data identifying telephones from a line switching server which controls speech communication calls; a call state storage section storing the call state data for each of the calls; a message relay section receiving a message, which includes the identification data of a first telephone, from a first client terminal, and specifying a second telephone; and a message storage section configured to store the message and identification data of the second telephone. The message relay section receives a message inquiry, to acquire a message which includes the identification data of the second telephone, from a second client terminal, and transmits the stored message for the identifier data.

Abstract: A mobile communication system 100 includes: a plurality of relay servers 101 and 102 connected via a global IP network so as to be capable of communicating; a first mobile communication terminal 110 connected with the relay server 101 so as to be capable of communicating; a second mobile communication terminal 120 connected with the relay server 102 so as to be capable of communicating; and a message relay server 103 relaying transmission and reception of a message between the mobile communication terminals 110 and 120. The first mobile communication terminal transmits a message including global address information acquired from the relay server 101, to the second mobile communication terminal. The second mobile communication terminal requests the relay server 102 to establish a communication session between the mobile communication terminals 110 and 120 through the relay servers 101 and 102, based on the received global address information.