Ricoh Company, Ltd.

Kenichiro Morita

Shoh Nagamine

Takuya Imai

Hidekuni Annaka

Takeshi Homma

Hideki Shiro

Norio Kimura

Hiroshi Kubo

Michitaka Suzuki

Yoshito Suzuki

Takeshi Akai

Takashi Fujii

Hiroyuki Kanda

Atsushi Miyamoto

Shigeru Nakamura

Hiroshi Hinohara

Satoshi Saito

Jun Yamada

Ikuhisa Okamoto

Masashi Ogasawara

Takashi Hasegawa

Yoshinaga Kato

Tatsuya Nagase

Takashi Nakano

Takuya Morinaga

Takuya Sano

Atsushi Nakafuji

Takafumi Takeda

Takuya Soneda

Mayu Hakata

Yohhei Ohmura

Tomonori Aikawa

Junpei Mikami

Shinya Kitaoka

Yoichiro Matsuno

Kumiko Yoshida

Hideki Tobinaga

Yuichi Kawasaki

Mamoru Kambayashi

Atsushi Kanaya

Takehisa Shimazu

Kenji Hayasaka

Yuya Akimoto

Fumiyuki Heishi

Kyohsuke Kaminushi

Tatsuaki Nagano

Yasuo Kosuga

Yohei Yamamoto

Hiroaki Utagawa

Takuma Ariga

Motoya Sano

Shingo Matsushita

Ryuji Yoshida

Koki Sakano

Atsushi Fujita

Takashi Fukumoto

Shoichiro Kanematsu

Masanori Ishigami

Masataka Fukuchi

Yoshikazu Goto

Kazuhiro Terayama

Akihito Kameda

An image communication system includes a first communication terminal including first circuitry and a second communication terminal including second circuitry. The first circuitry of the first communication terminal transmits, to the second communication terminal, first image data representing a first image and second image data representing a second image. The first circuitry of the first communication terminal transmits, to the second communication terminal, position information indicating a predetermined position on the first image. The second circuitry of the second communication terminal combines, based on the position information, the second image with the first image at the predetermined position on the first image to generate a combined image. The second circuitry of the second communication terminal displays, on a display, the combined image.

Communication terminal, image communication system, and display control method

A communication terminal including circuitry to: receive video data including a captured image, from a communication management server that manages the captured image of video data distributed from another communication terminal different from the communication terminal; determine whether any predetermined-area information indicating a predetermined area of the captured image to be displayed during a reproduction time of the video data is stored in a memory; and control a display to display an image representing the predetermined area indicated by the predetermined-area information, based on a determination that the predetermined-area information is stored in the memory.

Communication terminal, image communication system, and method of displaying image

A communication management system manages a session in which a plurality of terminal apparatuses shares a stroke image. The communication management system includes circuitry configured to: manage stroke information including a plurality of pieces of stroke data representing the stroke image; receive, from a first terminal apparatus, group operation information for designating one or more pieces of stroke data, which are operation targets, from among the plurality of pieces of stroke data; and restrict, based on the group operation information, an operation regarding the one or more pieces of stroke data by a second terminal apparatus, which is different from the first terminal apparatus.

Communication management system, communication system, communication management device, image processing method, and non-transitory computer-readable medium

An image capturing device includes an imaging device and circuitry. The imaging device captures an image. The circuitry defines a point of interest in the image, converts the defined point of interest in accordance with attitude information of the image capturing device, and cuts out a viewable area from the image. The viewable area includes the converted point of interest.

Omnidirectional camera system with improved point of interest selection

A communication management device includes circuitry that: receives captured image data of a captured image obtained by an image capturing device and time-series information representing a date and time associated with predetermined area information, the predetermined area information representing a predetermined area and is transmitted by a communication terminal that displays a predetermined area image of the predetermined area; and transmits, to the communication terminal, converted predetermined area image data obtained through perspective projection conversion based on the received captured image data and the received time-series information.

Communication management device, image communication system, communication management method, and recording medium

A communication management apparatus for communicating with a communication terminal, including circuitry that receives from the communication terminal pieces of designated-position information transmitted, each indicating a corresponding one of a plurality of designated positions in an area where the plurality of image capturing devices are provided, and transmits to the communication terminal identification information of a shareable image capturing device and pieces of predetermined-area information of the shareable image capturing device, the shareable image capturing device being an image capturing device for which distances from any two designated positions among the plurality of designated positions indicated by the pieces of designated-position information are shortest and which is capable of sharing images of the two designated positions, each of the pieces of predetermined-area information of the shareable image capturing device indicating a predetermined area in which a corresponding one of the two designated positions is viewed at the front.

Communication management apparatus, image communication system, communication management method, and recording medium

A communication terminal including circuitry to: receive images captured by a plurality of image capturing devices in a distribution site; accept designation of a point of interest in the distribution site by a user; acquire predetermined-area information indicating a predetermined area including the designated point of interest, the predetermined area being included in an image captured by a specific image capturing device selected based on a position of the point of interest and positions of the image capturing devices; and display a predetermined-area image based on the acquired predetermined-area information, the predetermined-area image being an image of the predetermined area in the image captured by the specific image capturing device.

Communication terminal, image communication system, and method for displaying image

A communication management apparatus includes circuitry to receive from a communication terminal predetermined-position information indicating a predetermined position in an area where a plurality of image capturing devices are provided, and number-of-division information indicating the number of divisions for dividing the area from the predetermined position, and transmit to the communication terminal first predetermined-area information indicating a predetermined area including the predetermined position in an image captured by a first image capturing device and second predetermined-area information indicating a predetermined area including the predetermined position in an image captured by a second image capturing device, the first image capturing device being arranged at a shortest distance from the predetermined position, and the second image capturing device being arranged such that an angle between the second and the first image capturing devices is closest to an angle obtained by dividing the area in accordance with the number of divisions.

A communication terminal includes a memory and circuitry. The memory stores, for each image type information indicating a type of image data, sizes of a plurality of display areas, each display area being a divided area divided from an entire area displayable by a display, in association with required resolutions of image data to be displayed in the corresponding display areas. The circuitry receives, from a communication management system, specific image type information indicating a type of specific image data transmitted from other communication terminal. The circuitry transmits, to the communication management system, specific required resolution, which is a resolution stored in the memory for the specific image type information in association with the size of one of the display areas in which the specific image data is to be displayed.

Communication terminal, communication system, communication method, and display method

An image communication system includes a first communication terminal and a second communication terminal. The first communication terminal acquires an image captured by an image capturing device. The second communication terminal receives the image from the first communication terminal via a network, and displays the image on a screen of a display. The first communication terminal includes first circuitry that, in response to receipt of an operation of switching a view mode related to viewing of the image, transmits the image and first viewable area information to the second communication terminal. The first viewable area information is related to a viewable area of the image to be displayed on the screen. The second communication terminal includes second circuitry that receives the image and the first viewable area information and displays the viewable area of the image on the screen based on the first viewable area information.

Image communication system, image capturing device, communication terminal, and mode switching method

A communication terminal that receives at least one of image data and audio data from at least one other communication terminal via a network, the communication terminal including circuitry to generate log data in response to occurrence of an event at the communication terminal, and transmit the generated log data to an accumulation apparatus each time the event occurs.

Communication terminal, communication system, log data transmission method, and non-transitory computer-readable medium

A communication management system, a communication system, a communication control method, and a recording medium. The communication management system manages sharing of data between a plurality of communication terminals and transmits storage location information indicating a storage location of image data, the storage location information to be received by a first communication terminal of the plurality of communication terminals, receives a notice indicating a start of uploading of the image data to the storage location indicated by the storage location information, the notice transmitted by the first communication terminal, transmits the notice indicating the start of uploading of the image data, the notice to be received by a second communication terminal of the plurality of communication terminals, receives stroke data for reproducing a stroke image, the stroke data transmitted by the first communication terminal, and transmits the stroke data, the stroked data to be received by the second communication terminal.

Communication management system, communication system, communication control method, and recording medium

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Tokyo, Japan

Kenichiro Morita