Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Corporation of America

Toru Kawaguchi

Hiroshi Yahata

Tomoki Ogawa

Yasushi Uesaka

Yutaka Saito

Takahiro Nishi

Toshihisa Nakano

Toshihiko Munetsugu

Wataru Ikeda

Taiji Sasaki

Martin Schlockermann

Ralf Becker

Yuka Ozawa

Takuji Hiramoto

Hiroki Shinohara

José Luis Rey

A transmission device transmits data for causing a video display device to display, in a display area, a video made up of a 3D video and a superposed display object, the transmission device comprising: a division information generator generating division information indicating a range for each of two or more regions into which the display area is divided by at least one boundary line that is horizontal; an offset information configurator generating offset information in accordance with a 3D video depth in one of the regions, the offset information indicating a region depth for 3D display of the display object in the region, and a different piece of the offset information being generated for each region; a stream generator generating a transport stream that includes the division information, the offset information, and 3D video data for displaying the 3D video; and a stream transmitter transmitting the transport stream.

Display device and video transmission device, method, program, and integrated circuit for displaying text or graphics positioned over 3D video at varying depths/degrees

An encoding device that, when encoding frame image groups which represent scenes respectively viewed from plurality of viewpoints over predetermined time period, generates base-view video stream by encoding frame image group of standard viewpoint without using, as reference image, any frame image of other viewpoints, generates first-type dependent-view video stream by encoding frame image group of first-type viewpoint by using, as reference image, frame image of same time of base-view video stream or of another first-type dependent-view video stream, first-type viewpoint being positioned such that at least one viewpoint is present between first-type viewpoint and standard viewpoint, and generates second-type dependent-view video stream by encoding frame image group of second-type viewpoint by using, as reference images, frame images of same time of two viewpoints sandwiching second-type viewpoint, second-type viewpoint being neither standard viewpoint nor first-type viewpoint.

Encoding device, decoding device, playback device, encoding method, and decoding method

A video transmission device for transmitting a video image so that a video playback device can recognize a transmission path for an additional-view video image transmittable through various transmission paths, and play back a 3D video image. The video transmission device includes: a storage unit for storing therein video images transmitted through respective virtual channels, and virtual channel information pieces including definition information pieces defining the respective virtual channels; and a transmission unit for transmitting the video images and the virtual channel information pieces through the respective virtual channels, wherein the stored video images include one of two viewpoint images constituting the 3D video image, and, in one of the definition information pieces defining one of the virtual channels through which the one of the two viewpoint images is transmitted, transmission form information indicating a form of transmitting the other one of the two viewpoint images is described.

Video transmission device, video transmission method, and video playback device

A video processing device overlays appropriate presentation data over video images, even if the size of the display area for 3D video images differs from the size of the display area for presentation data that is to be presented with the 3D video images. The video processing device generates left- and right-view images from a 3D video stream, enlarges presentation data obtained from a relevant data stream to scale its display size to match the display size of video images, applying an offset value, which is determined to cause a specific parallax, to the thus enlarged presentation data to generate left- and right-view presentation data, and overlays the left-view presentation data over the left-view images and the right-view presentation data over the right-view images to display video images resulting from the overlaying.

Video processing device and video processing method

Provided is a video processing device that quickly identifies a distribution mode of a stream of display data, e.g., subtitles, and reproduces the data according to the distribution mode. The video processing device receives a transport stream including additional information and a data stream of display data to be displayed along with a 3D video, the additional information indicating whether the transport stream further includes left-view and right-view data streams generated from left-view and right-view data used for displaying the display data; determines whether the transport stream includes the left-view and the right-view data streams based on the additional information; and reproduces the left-view and the right-view data from the left-view and the right-view data streams when the transport stream includes the left-view and the right-view data streams, and reproduces alternative left-view and right-view data when the transport stream does not include the left-view and the right-view data streams.

Video processing device, transmission device, video processing system, video processing method, transmission method, computer program and integrated circuit

A data broadcast display device guarantees stereoscopic perception by the user of a displayed 3D data broadcast image, while alleviating the discomfort a user experiences due to a delay in display. The data broadcast display device includes a reception unit that receives object data for generating the left-view and right-view objects, a display data generation unit that generates the left-view and right-view objects using the received object data while providing notification upon completion of the generation of each object, and a display control unit that determines, at predetermined time intervals, whether the notification has been received for both the left-view and right-view objects, includes both the left-view and right-view objects in a data broadcast image for display when determining affirmatively, and includes neither the left-view nor the right-view object in the data broadcast image for display when determining negatively.

Data broadcast display device, data broadcast display method, and data broadcast display program

To provide a content playback device capable of, when playing back a content distributed in a streaming format via a network whose view mode is selectable among a plurality of view modes, presenting to a user the switchability between the view modes, thereby to improve the user's convenience. The content playback device includes a reception unit that receives, from the content distribution system, control information indicating a plurality of view modes selectable for viewing the video content, a presentation unit that presents, to a user, the view modes as options of a view mode for viewing the video content, an input reception unit that receives an input selecting one view mode among the view modes from the user; and a request unit that requests the content distribution system to distribute the video content in the streaming format, by transmitting information indicating the selected view mode to the content distribution system.

Content playback device, content playback method, content playback program, and content providing system

A content playback device reduces user discomfort, relative to conventional devices, when playback is interrupted and resumed after switching viewing modes, pieces of content representing different viewing modes for a common product, and differing in video length or having other differences. The content playback device receives and plays back streaming content from a content server delivering two pieces of content having different viewing modes for the common product, and comprises: a selection unit selecting a viewing mode; a determination unit determining whether playback of a first piece of content not having the selected viewing mode was interrupted; a conversion unit converting, when the determination unit has determined affirmatively, a playback interrupt position into a corresponding position in a second piece of content having the selected viewing mode; and a request unit making a request to the content server for transmission of the second piece of content from the corresponding position.

Content playback device, method for playing back content and content delivery system

In the present invention, a content distribution server distributes a content key, encrypted content encrypted using the content key, and playback control information describing a playback mode restriction for a specific section of content, to a content playback terminal, and the content playback terminal refers to the playback control information, and decodes and plays back encrypted content in the case of a playback mode in which the specific section of content is not restricted. By this means, the playback mode of a specific section of content can be restricted based on playback control information.

Content distribution server and content playback control terminal

A content distribution system inhibits execution of processing which is unnecessary for streams having specific structures. The content distribution system includes a distribution server and a playback apparatus. The distribution server transmits a program stream and a program state flag associated with the program stream that indicates whether or not program content corresponding to the program stream is constituted of only 3D video. The playback apparatus determines, prior to decoding the program stream, whether or not the program state flag indicates that the program content is constituted of only 3D video, and when determining that the program content is constituted of only 3D video, decodes the program stream and performs control so as to play back the program stream as 3D video without determining whether or not each frame included in the program stream is a 3D video frame.

Growing community of inventors

Tokyo, Japan

Toru Kawaguchi