Nippon Telegraph and Telephone Corporation

Tetsuro Tokunaga

Kota Hidaka

Yoshihide Tonomura

Yoko Ishii

Yuichi Hiroi

Yasuhiko Miyazaki

Kiyoshi Tanaka

Mutsuhiro Nakashige

To identify and track a plurality of objects. An object tracking deviceincludes a frame acquisition unitfor acquiring one set of frame dataincluded in moving image data that captures a space where a plurality of objects are present; a distance acquisition unitfor acquiring measurement datafrom measurement of three-dimensional coordinates of points configuring the objects in the space where the objects are present; an object position detection unitfor detecting a two-dimensional position of each of the objects from the frame dataon the basis of comparison with template data of each of the objects; an object distance detection unitfor detecting a plurality of three-dimensional positions of the objects from the measurement data; and an associating unitfor associating each two-dimensional position from the object position detection unitwith the nearest three-dimensional position among the three-dimensional positions from the object distance detection unit 34.

Object tracking device, object tracking method, and object tracking program

There is provided an object tracking apparatus that realizes robust object detection and tracking even for movement fluctuation and observation noise, an object tracking method and a computer program. An object cracking apparatusis an apparatus tracking an object in video, the object tracking apparatusincluding: a deep learning discriminatorwhich is a discriminator by deep learning; and a particle filter function unittracking an object by applying a multi-channel feature value of video including feature values by the deep learning discriminatorto likelihood evaluation by a particle filter, according to a distance between position information about the multi-channel feature value and position information about each particle.

Object tracker, object tracking method, and computer program

A content display device includes a content acquisition unit configured to acquire content data including a script, a storage unit configured to expand the content data into tree-structure data and store the tree-structure data, a determination unit configured to determine from the tree-structure data a sub-tree corresponding to a portion of the digital content to be displayed by each of the plurality of child browsers, and transmit the sub-tree to the corresponding child browser, an execution unit configured to execute the script, and an access unit configured to, when the execution unit executes a process to access the tree-structure data, notify the child browser holding a sub-tree to be accessed of the process and cause the child browser to execute a process, and configured to, when an occurrence notice of an event is received from the child browser, cause the execution unit to execute a process corresponding to the event.

Content display device, content display method, and content display program

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Musashino, Japan

Tetsuro Tokunaga