Abstract: A recording method for recording a base video stream and an enhancement video stream. The recording method includes: a first step of generating the base video stream by performing an irreversible conversion on an original image; and a second step of generating the enhancement video stream that includes a shift parameter and picture data. A gradation bit sequence of each pixel constituting the picture data of the enhancement video stream represents a difference between a gradation bit sequence of each pixel constituting picture data of the original image and a gradation bit sequence of each pixel constituting picture data of the base video stream. The shift parameter defines a shift operation that is performed by a playback device when the gradation bit sequence of the base video stream is added to the gradation bit sequence of the enhancement video stream.

Abstract: A recording medium has a main-view stream, a sub-view stream, and an extended stream recorded thereon. The main-view stream contains a main-view video stream constituting main views of stereoscopic video images, and is divided into a plurality of main-view extents arranged on the recording medium. The sub-view stream contains a sub-view video stream constituting sub-views of the stereoscopic video images, and is divided into a plurality of sub-view extents arranged on the recording medium. The extended stream contains extended data to be used in combination with the main-view stream, and is divided into a plurality of extended extents arranged on the recording medium. Between an adjacent pair of the plurality of extended extents, at least two each of the plurality of the main-view extents and the plurality of the sub-view extents are placed in a continuous, interleaved arrangement.

Abstract: A left view graphics stream and a right view graphics stream recorded on a recording medium each include one or more display sets, and the display sets are data groups used for displaying one screen worth of one or more graphics objects. The one or more display sets included in the left view graphics stream are in one-to-one correspondence with the one or more display sets included in the right view graphics stream, and an identical playback time for the video stream on the playback time axis is set in each of the corresponding display sets. Each display set includes state information indicating whether the data is all data necessary for displaying one screen worth of one or more graphics objects, or is a difference from the immediately previous display set, and the state information included in corresponding display sets indicate identical content.

Abstract: A data creation device performing compression encoding on first frame images showing a view from a first viewpoint and second frame images showing a view from a second viewpoint generates a stream in an MPEG-2 format, and base-view/dependent-view video streams in a format conforming to an MPEG-4 MVC format. The stream in the MPEG-2 format is generated by performing compression encoding on the first frame images. The base-view video stream is a stream of dummy data having the same number of frames as and a smaller data amount than the stream in the MPEG-2 format. The dependent-view video stream is obtained by performing compression encoding on each frame of the second frame images, with reference to a frame of the stream in the MPEG-2 format to be presented at the same time as a frame of the base-view video stream corresponding to the frame of the second frame images.

Abstract: A state setting unit stores a parameter indicating the state of a display device. A packet analyzing unit refers to the parameter to receive a broadcast stream, and analyzes management packets contained in the broadcast stream. A decoding unit uses a result of the analyzing to extract packets constituting broadcast content from the broadcast stream and decode the packets into video frames. A display unit displays video images represented by the video frames. A 3D video image detecting unit uses a result of the analyzing to determine whether broadcast content to be displayed contains 3D video images or not. A transmitter unit transmits a notification signal to a pair of 3D glasses when the 3D video image detecting unit detects that the broadcast content contains 3D video images. A notifying unit operates to urge the viewer to use the pair of 3D glasses in response to the notification signal.

Abstract: A playback device for playing back a graphics stream in accordance with a stream selection table recorded on the recording medium. A procedure means determines a playback type of a graphics corresponding to the current stream number, based on the playback capability indicated by the capability register. The playback of graphics streams falls into two types, one of which is a first playback type in which a monoscopic graphics stream is used and the other is a second playback type in which a pair of left-eye graphics stream and right-eye graphics stream is used to perform a stereoscopic playback. The capability register indicates whether or not a capability to perform the stereoscopic playback by using the pair of left-eye graphics stream and right-eye graphics stream is present in the graphics decoder.

Abstract: Provided is a playback device which is capable of correctly determining a construction status of a virtual package. An access is attempted to a state signaling file recorded in a local storage using a fixed address on a virtual file system assigned by merge management information (step S13). The virtual package construction status is determined according to failure or success of the attempted access.

Abstract: Provided is a video encoding device and a video playback device, the video encoding device encoding 3D video images in a manner that suppresses an increase in the necessary band, while maintaining playback compatibility with playback devices configured for the MPEG-2 standard. A data creation device 5601 as a video encoding device includes: a 2D compatible video encoder 5602 generating a stream in the MPEG-2 format by compression-encoding left-view video images pertaining to multi-view video images; an extended video encoder 5606 generating a stream conforming to the MPEG-4 AVC format by compression-encoding pictures of right-view video images pertaining to the multi-view video images, each picture of the right-view video images being compression-encoded with reference to a picture, from among pictures in the stream in the MPEG-2 format, to be presented at the same time as the picture of the right-view video images; and a multiplexer 5607 multiplexing the generated streams.

Abstract: Provided are video encoding device that encodes high-quality video, restricting increase of the required bandwidth, while maintaining playback compatibility with playback devices conforming to MPEG-2 standard, and video playback device. Data creation device 5401 includes: 2D compatible video encoder 2602 that generates stream conforming to MPEG-2 format by compress-encoding original video of normal quality; base-view video encoder 2605 that generates stream, composed of black images, that includes the same number of pictures as stream that is obtained by compress-encoding original video; and dependent-view video encoder 5409 that generates dependent-view video stream by compress-encoding higher-quality original video, by using, as reference pictures, pictures included in stream conforming to the MPEG-2 format that have the same time information as pictures included in the base-view video stream that correspond to pictures constituting higher-quality original video.

Abstract: On a recording medium, a monoscopic video specific section and a stereoscopic video specific section are continuous immediately after an extended data specific section. A shared section includes a continuous, interleaved arrangement having one each of main-view extents, sub-view extents, and extended extents. The stereoscopic video specific section includes a continuous, interleaved arrangement of extents having one each of the main-view extents and the sub-view extents. The monoscopic video specific section includes a continuous arrangement of a copy of the main-view extent arranged in the stereoscopic video specific section. The extended data specific section includes one of the extended extents that is to be used in combination with the copy of the main-view extent arranged in the monoscopic video specific section. The shared section is accessed when stereoscopic video images are played back, when monoscopic video images are played back, and when an extended stream is used.

Abstract: Provided is a recording medium that enables seamless connection between preceding playitems which are stream data arranged prior to a position where a long jump occurs, such as a layer boundary, and succeeding playitems which are stream data arranged subsequent to the position where the long jump occurs. A block exclusively for 2D playback Ln2D is arranged succeeding a 3D extent block in which a depth map data block, a right-view data block, and a left-view data block are arranged in an interleaved manner. A 3D extent block including a block exclusively for 3D playback L3SS is arranged between the block exclusively for 2D playback and a long jump point LB. The block exclusively for 2D playback and the block exclusively for 3D playback are identical in content.

Abstract: 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.

Abstract: A device for displaying stereoscopic video images on a screen includes a receiving unit, signal processing unit, and display unit. The receiving unit receives stream data including left-view frames and right-view frames of stereoscopic images. The signal processing unit alternately extracts left-view frames and right-view frames from the stream data. Over one frame period of the stereoscopic video images, the signal processing transmits a pair of a left-view frame and a right-view frame when the control information indicates a 3D playback mode, and transmits only a left-view frame when the control information indicates a 2D playback mode. The display unit displays each frame transmitted from the signal processing unit for a predetermined time on the screen.

Abstract: The present invention provides a playback apparatus for playing back one combination video by combining a broadcast video with any additional video not determined by a fixed position relative to the broadcast video. The playback apparatus comprises: a first receiving unit that receives, via a broadcast wave, a broadcast video composed of broadcast images, each broadcast image being a portion of a frame image among a plurality of frame images constituting the original video; a second receiving unit that receives an additional video composed of remaining images, each remaining image being the remaining portion of the frame image; an arrangement information acquiring unit that acquires arrangement information indicating an arrangement of the broadcast image and the remaining image in the frame image; and a playback unit that reproduces and plays back the frame images by arranging the broadcast images and the remaining images based on the arrangement information.

Abstract: A recording medium records a main-view stream, a sub-view stream, and management information. The management information includes a system rate for each stream, and each stream is divided into a plurality of data blocks that form a plurality of extent blocks. In each extent block, main-view data blocks and sub-view data blocks are in a continuous interleaved arrangement. A main-view data block and sub-view data block forming a single pair each have a maximum size that is determined by the following conditions: (i) the system rate of the sub-view stream, (ii) whether the pair is the top pair within the extent block, and (iii) whether a long jump region exists between the recording areas of two extent blocks that are to be read continuously.

Abstract: A recording medium includes a base-view stream and a dependent-view stream. The base-view stream is used for monoscopic video playback. The dependent-view stream is used for stereoscopic video playback in combination with the base-view stream. The recording medium further includes a first file and a second file. The first file refers to the base-view stream in monoscopic video playback, and the second file refers to the base-view stream in stereoscopic video playback.

Abstract: A data generating apparatus 100 includes: an acquiring unit 101 configured to acquire a frame image; a setting unit 109 configured to set prohibition information showing a region on the frame image in which superimposition of an additional image is prohibited, the prohibition information being used when a playback apparatus superimposes the additional image on the frame image for playback; and a multiplexing unit 104 configured to multiplex the frame image and the prohibition information to generate data. A receiving apparatus 400 includes: a receiving unit 401 configured to receive data having been generated by multiplexing the frame image and the prohibition information; a separating unit 402 configured to separate the frame image and the prohibition information from the data; an acquiring unit 409 configured to acquire the additional image; and a superimposing unit 407 configured to superimpose the additional image on the frame image based on the prohibition information.

Abstract: The recording medium 100 stores playlist information and a plurality of elementary streams. The playlist information includes a basic stream selection table and an extension stream selection table. The basic stream selection table shows elementary streams that are permitted to be played back in a monoscopic playback mode. The extension stream selection table shows elementary streams that are permitted to be played back only in a stereoscopic playback mode. The stream entry in the extension stream selection table indicates a packet identifier that is to be used by the playback device to perform demultiplexing when the playback device is in the stereoscopic playback mode and the corresponding stream number is set in the stream number register provided in the playback device.

Abstract: A pair of main-view and sub-view video streams and a graphics stream are recorded on a BD-ROM disc. Metadata is provided in each GOP in the sub-view video stream. The metadata includes offset information. The offset information specifies offset control for a plurality of pictures constituting a GOP. Offset control is to provide a left offset and right offset for the horizontal coordinates in a graphics plane to generate a pair of graphics planes, and to combine them separately with main-view and sub-view video planes. The sub-view video stream is packetized and multiplexed in a transport stream. A header of each TS packet includes a TS priority flag. TS packets containing the metadata have a different value of TS priority flag from TS packets containing sub-view pictures.

Abstract: An image generation device 100 includes: a detection unit 210 that detects a viewer's viewpoint; a viewpoint calculation unit 220 that obtains a virtual viewpoint by multiplying the displacement of the viewer's viewpoint from a reference point by r (where r is a real number greater than 1); a generation unit 230 that generates an image seen from the virtual viewpoint; and an output unit 240 that outputs the generated image to an external display.