Abstract: According to one embodiment, an electronic apparatus includes a video output module, a receiving module, and an image quality adjusting module. The video output module is configured to output 2D video and 3D video selectively. The receiving module is configured to receive a wearing state signal indicating whether or not a user wears shutter glasses. The image quality adjusting module is configured to determine a first image quality adjustment amount when the video output module outputs the 2D video and the wearing state signal indicates that the user wears the shutter glasses, and to determine a second image quality adjustment amount when the video output module outputs the 2D video and the wearing state signal indicates that the user does not wear the shutter glasses. The second image quality adjustment amount is different from the first image quality adjustment amount.

Abstract: A holographic direct-view display system uses holographic integral imaging techniques that is an auto stereoscopic way to reproduce parallax and occlusion. The display is not resolution limited and is scalable to display life size images if desired. The system can be used to transmit 3D depictions of a scene at video and sub-video rates as well as other information, such as images of documents or computer generated images. The images may be captured, transmitted and displayed in real-time (or near real-time) for telepresence or stored for time-shifted display. The system combines integral holography, a pulsed laser to record the hologram at high speed and a dynamic refreshable holographic material such as a photorefractive polymer as a recording media. The system uses techniques to write, read and erase the updateable hologram that allow the holographic material, hence direct-view display to remain stationary throughout each of the processes for continuous presentation of the hologram to the audience.

Abstract: A server process renders instances of a 3D virtual environment as video streams that may then be viewed on devices not sufficiently powerful to implement the rendering process natively or which do not have native rendering software installed. The server process is broken down into two steps: 3D rendering and video encoding. The 3D rendering step uses knowledge of the codec, target video frame rate, size, and bit rate from the video encoding step to render a version of the virtual environment at the correct frame rate, in the correct size, color space, and with the correct level of detail, so that the rendered virtual environment is optimized for encoding by the video encoding step. Likewise, the video encoding step uses knowledge of motion from the 3D rendering step in connection with motion estimation, macroblock size estimation, and frame type selection, to reduce the complexity of the video encoding process.

Abstract: A three-dimensional image viewing device includes a control panel in which a plurality of pixels are disposed in a predetermined region; a position identifying unit that identifies a right eye position and a left eye position of a user viewing a display screen on which a left eye image and a right eye image are displayed through the predetermined region of the control panel configured to be interposed between the user and the display screen; and a control circuit that controls the plurality of pixels such that at least part of the pixels arranged in a region corresponding to the right eye position identified by the position identifying unit transmits light only from the right eye image and also such that at least part of the pixels disposed in a region corresponding to the left eye position identified by the position identifying unit transmits light only from the left eye image.

Abstract: A pseudo holographic visual effect is produced by acquiring at least two actual images of a subject wherein each image represents a different viewing angle of the single subject. Intermediary images corresponding to other viewing angles of the subject may be extrapolated from the two actual images or two adjacent images if a sufficient number of actual images are not available to create the desired level of resolution. To create the effect, an initial start image is displayed. Computer based sensors or camera images from a camera are then used to determine any movement of the device or user from the initial position at which the initial image was displayed. Once movement is detected or once the position of the viewer is determined, the initial image is replaced with an image that corresponds to the change in the detected viewing angle or with an image that corresponds to the viewing angle of the viewer.

Abstract: Techniques for multi-view video format control are provided. In some embodiments, a display video format supported by a display panel is determined. A video format code is extracted from a coded bitstream in which a plurality of images is encoded in two or more source video formats. The video format code identifies a source video format in which a set of images in the plurality of images is encoded. A video format filter is selected to modify the set of images encoded in the source video format to generate another set of images encoded in the display video format. The other set of images encoded in the display video format is sent to the display panel.

Abstract: In a 3D image viewing system of field sequential type using a liquid crystal apparatus, an apparatus generates a black field that is a period for displaying a black image, which is located between a right field that is a right eye image display period and a left field that is a right eye image display period. Right and left shutters of shutter glasses start to open in synchronization with start of the right and left fields and start to close in synchronization with end of the adjacent black field.

Abstract: Various embodiments of the present invention are directed to methods and systems for processing signals, particularly signals encoding two-dimensional images, such as photographs, video frames, graphics, and other visually displayed information. Rather than attempting 3D-boosting by applying a global contrast enhancement method, method and system embodiments of the present invention generate a soft-segmented image, portions of which are effectively locally contrast enhanced and portions of which, having excepted region types, are not locally contrast enhanced, to produce an output image which is selectively 3D-boosted.

Abstract: A display device for displaying a stereoscopic image including a left-eye image viewed by a left eye and a right-eye image viewed by a right eye including: a display portion configured to display the left-eye image and the right-eye image; and a transmitter configured to transmit a synchronization signal synchronized with the stereoscopic image, wherein the transmitter includes a first transmitter and a second transmitter disposed away from the first transmitter.

Abstract: An image display device and a method for operating the same are disclosed. The method for operating the image display device including a plurality of backlight lamps arranged on upper and lower sides of a rear surface of a display panel includes receiving a 3-Dimensional (3D) image, alternately aligning a left-eye image and a right-eye image of the 3D image, and alternately displaying the aligned left- and right-eye images. In the displaying step, the backlight lamps arranged on the upper side of the panel and the backlight lamps arranged on the lower side of the panel are turned on in a portion of a period of the left-eye image or the right-eye image.

Abstract: The invention relates to a system and method of processing an input three dimensional video signal comprising multiple views, the method comprising: determining a far disparity estimate indicative of the largest disparity value for the input three dimensional video signal, a near disparity estimate indicative of the smallest disparity value for a spatial region within the input three dimensional video signal, adapting the input three dimensional video signal by shifting the input three dimensional video signal backwards by means of a disparity shift based on the far disparity estimate and generating an overlay within the spatial region for the shifted three dimensional video signal based on the near disparity estimate and the disparity shift. The invention further relates to a computer program product implementing a method according to the present invention.

Abstract: An apparatus for image reproduction and a method therefor are provided. The apparatus includes a processing module and a logic circuit. The processing module outputs a data signal. The logic circuit is for selectively processing a single image of the data signal and a group of images of the data signal for displaying. When the apparatus is in a synchronization mode, the logic circuit processes a data pattern of the data signal for determining a sequence of the data signal. When the apparatus is in a display mode, the logic circuit processes the group of images of the data signal according to the determined sequence. In an embodiment, the group of images indicates a three-dimensional (3-D) image for displaying by a 3-D panel.

Abstract: An image processing device includes a phase difference detection portion configured to detect phase difference between parallax images by performing correlation value calculation with a plurality of parallax images, and generate phase difference distribution in an image. The phase difference detection portion performs the phase difference detection individually along two or more directions different from each other, and generates the phase difference distribution by utilizing results of the phase difference detection regarding the two or more directions.

Abstract: An image reproducing apparatus (and method) includes obtaining a plurality of original images of a subject viewed from different viewpoints for generating a three-dimensional image, generating at least one interpolation image from the plurality of original images for interpolating a viewpoint between at least the plurality of original images, generating a motion picture in which the plurality of original images and at least some of the interpolation images are arranged in the order of viewpoint, and storing the plurality of original images and the motion picture in relation to each other.

Abstract: Provided is a recording medium on which are recorded a main-view stream, sub-view stream, and management information. The management information includes a system rate for each stream. 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: Compatibility between a depth image consumer and a depth image producer is provided by receiving a native depth image having an unsupported type that is not supported by a depth image consumer, and processing the native depth image into an emulation depth image having a supported type that is supported by the depth image consumer. This emulation depth image is then output to the depth image consumer.

Abstract: An endoscope apparatus, includes: an imaging unit that captures a subject to acquire an image of the subject; a control unit that includes: a base point setting section that sets base points on the image, the base points being used for a three dimensional measurement of the subject; a reference point setting section that sets reference points inside and outside a region based on the base points, the reference points being used for extracting a characteristic of the image; a measurement section that performs the three dimensional measurement of the subject based on the base points; and a generation section that generates characteristic information indicating a characteristic of the image at the reference points based on information on the image at the reference points; and a display that displays the image, the characteristic information, and a result of the three dimensional measurement.

Abstract: An application for three-dimensional encoding of frames of a digital video includes reserving a subset of pixels of each frame of the digital video and encoding frames meant for a first eye with a first pattern and encoding frames meant for the second eye with a second pattern, the second pattern being detectably different than the first pattern. Optionally, for frames having content for both eyes, any other pattern that is detectably different from the first pattern or second pattern is encoded into the subset of pixels. The subset of pixels is used during playback to shutter the left-eye and right-eye to simulate three-dimensions.

Abstract: A parallax information detection unit detects parallax information based on a motion vector obtained resulting from motion compensation on a 3D video performed by a decoder, and converts the detected parallax information into a stereoscopic effect level. Then, a control unit compares the stereoscopic effect level with a lock level recorded in a lock level register, and performs stereoscopic display effect control based on a result of the comparison.

Abstract: An application for three-dimensional encoding of frames of a digital video includes reserving a subset of pixels of each frame of the digital video and encoding frames meant for a first eye with a first pattern and encoding frames meant for the second eye with a second pattern, the second pattern being detectably different than the first pattern. Optionally, for frames having content for both eyes, any other pattern that is detectably different from the first pattern or second pattern is encoded into the subset of pixels. The subset of pixels is used during playback to shutter the left-eye and right-eye to simulate three-dimensions.

Abstract: Compatibility between a depth image consumer and a plurality of different depth image producers is provided by receiving a native depth image having unsupported depth camera parameters that are not compatible with a depth image consumer, and converting the native depth image to a virtual depth image having supported virtual depth camera parameters that are compatible with the depth image consumer. This virtual depth image is then output to the depth image consumer.

Abstract: A reproducing apparatus includes an OSD creating unit operable to create an OSD display image, an OSD combining unit operable to combine an image and the OSD display image created in the OSD creating unit, and an outputting unit operable to output a signal of the image with which the OSD display image is combined by the OSD combining unit, to a display apparatus which can display an image stereoscopically outside the reproducing apparatus, and, when a 3D image output format of the reproducing apparatus is set to a top and bottom format, the OSD combining unit arranges the OSD display image at a position, of an image inputted in the OSD combining unit, which does not cross a center line dividing the image into left and right images.

Abstract: A method and apparatus for generating a data stream for providing a three-dimensional (3D) multimedia service and a method and apparatus for receiving the data stream are provided. The generating method includes: generating at least one elementary stream (ES) including video data of each view from a program for providing a two-dimensional (2D) or 3D multimedia service; generating program map table (PMT) information about the program, including reference information about the at least one ES and 3D additional information for identifying and reproducing the video data of each view; and generating at least one transport stream (TS) by multiplexing packetized elementary stream (PES) packets generated by packetizing the at least one ES, and the PMT information.

Abstract: A digital broadcasting stream transmitting method and a digital broadcasting stream receiving method and apparatus for providing three-dimensional (3D) video services are provided. The transmitting method including: generating a plurality of elementary streams (ESs) for a plurality of pieces of video information including at least one of information about a base-view video of a 3D video, information about an additional-view video corresponding to the base-view video, and a two-dimensional (2D) video having a different view from views of the 3D video; multiplexing the plurality of ESs with link information for identifying at least one piece of video information linked with the plurality of pieces of video information, to generate at least one transport stream (TS); and transmitting the generated at least one TS via at least one channel.

Abstract: A video processing apparatus includes a video decoder, a storage device, and a video output device. The video decoder decodes an encoded video input to generate a video input with a source video format. The storage device buffers the video input generated from the video decoder. The video output device outputs a video output to a display device according to the video input buffered in the storage device. The video output has a display video format satisfying a display capability of the display device, and the source video format and the display video format are three-dimensional (3D) video formats different from each other.

Abstract: A recording apparatus includes a recording controller configured to record picture data of a 3D picture and viewing environment information indicating an environment intended as a viewing environment for the 3D picture on a recording medium.

Abstract: Set-top box circuitry and methods of operating the same are described that support the delivery of media content between one or more media content sources and a screen assembly of a display system. The set-top box circuitry is configured to process media content having display requirements that exceed constraints associated with a viewing environment that includes the screen assembly to produce processed media content having display requirements that do not exceed the constraints. The set-top box circuitry may also be configured to obtain substitute media content that replaces requested media content when the requested media content has display requirements exceeding constraints associated with a media content source, a communication path from the media content source, and/or the viewing environment.

Abstract: Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic images and the other portion of the checkerboard (e.g., “white” portions) are used to reconstruct the other image. The subsamples are, for example, taken from the image in a location coincident to the checkerboard position in which the subsamples are encoded.

Abstract: Provided is a recording medium in which extents for a base-view and a dependent-view are arranged alternately. The lower limit of the size of the base-view extents is the larger of a first lower limit value and a second lower limit value. The lower limit of the size of the dependent-view extent is a third lower limit value. The first lower limit value is determined so that, in monoscopic video playback, buffer underflow does not occur during jump periods between base-view extents. The second lower limit value is determined so that, in stereoscopic video playback, buffer underflow does not occur during read periods from each base-view extent to a next dependent-view extent. The third lower limit value is determined so that, in stereoscopic video playback, buffer underflow does not occur during read periods from each dependent-view extent to the next base-view extent.

Abstract: A three-dimensional processing circuit includes a multi-stream 3D image sender that produces packet based multi-stream information that includes a first stream that has first eye view information, such as left eye frame information and a second stream that includes corresponding second eye view information, such as right eye frame information, for display on a single display, wherein each stream comprises a same object viewed from differing view perspectives. In one example, the multi-stream information is communicated as packetized data over a single cable, for example wherein a packet includes both the left eye and right eye information. In addition, the encoder provides as part of the multi-stream information, control information indicating that the first and second streams are for a single display. In one example, the multi-streams are communicated concurrently so that the single display can display stereoscopic left and right eye frame information.

Abstract: A processing device for adding a subtitle to a three-dimensional (3D) image produced by left-eye and right-eye display patterns displayed on a display is disclosed. The processing device may include a video decoder configured to receive video content data representing content left-eye and content right-eye display patterns. The processing device may also include an audio decoder configured to receive sound data indicative of an audio volume level. Additionally, the processing device may include a subtitle decoder configured to receive subtitle data indicative of a subtitle display pattern, and modify the subtitle data based on the sound data. The processing device may also include a superimposition unit configured to combine the modified subtitle data with the video content data to create combined pattern data representing combined left-eye and combined right-eye display patterns.

Abstract: In a recording and reproducing device, compressed 3D video image data recorded on an optical disc is reproduced by a recording and reproducing unit and decompressed to baseband 3D video image data by a codec. A format converting unit converts the recording format of the optical disc into the transmission format of HDMI in accordance with the display capability of the display device preliminarily acquired and outputs the resulting data. The format converting unit of the display device converts the transmission format of 3D video image data received through an HDMI cable into a display format. A display control unit displays 3D video image data converted into the display format on the display panel.

Abstract: The animation generation system includes: an avatar generation module for generating an avatar in a virtual space, wherein the avatar has a set of skeletons and a skin, and the movable nodes of the set of skeletons are manipulated so that a motion of the skin is induced; and an avatar manipulation module for manipulating the movable nodes, including: a position mark which is moved to at least one first real position in a real space; at least one control mark which is moved to at least one second real position in the real space; and a video capturing unit for capturing the images of the real space; an arithmetic unit for identifying the first real position and the second real position from the images of the real space, and converting the first real position into a first virtual position, and the second real position into a second virtual position.

Abstract: A method and system is disclosed for generating a caption relative to a three-dimensional (3D) image. The caption may be generated such that it appears relative to a screen plane of an output device used to render the 3D image. The caption may be added to left and right viewpoint images included within images used by the output device to render the 3D image as a function of the positioning of the caption relative to the screen plane.

Abstract: A video processing device may enhance contrast of one or more of a plurality of view sequences extracted from a three dimensional (3D) input video stream based on contrast information derived from other sequences in the plurality of view sequences. The view sequences that are subjected to contrast enhancement and/or whose contrast information may be utilized during contrast enhancement may be selected based on one or more selection criteria, which may comprise compression bitrate utilized during communication of the input video stream. The video processing device may also perform noise reduction on one or more of the plurality of extracted view sequences during contrast enhancement operations. Noise reduction may be performed using digital noise reduction (DNR). The nose reduction may be performed separately and/or independently on each view sequence in the plurality of extracted view sequences.

Abstract: A video processing device may perform pulldown when generating an output video stream that corresponds to received input 3D video stream. The pulldown may be performed based on determined native characteristics of the received input 3D video stream and display parameters corresponding to display device used for presenting the generated output video stream. The native characteristics of the received input 3D video stream may comprise film mode, which may be used to determine capture frame rate. The display parameters may comprise scan mode and/or display frame rate. A left view or a right view frame in every group of frames in the input 3D video stream comprising two consecutive left view frames and corresponding two consecutive right view frames may be duplicated when the input 3D video stream comprises a film mode with 24 fps capture frame rate and the display device uses 60 Hz progressive scanning.

Abstract: A 3D video conversion device is operable to convert a first MPEG stream to a second MPEG stream. The 3D video conversion device includes an input module operable to receive a multiple-view stream, a conversion module operable to convert the multiple-view stream. The conversion module includes a decoding module operable to decode the multiple-view stream, a reformatting module operable to generate 3D views from decoded information, and an encoding module operable to re-encode the 3D views to an STB format stream, and an output module operable to output a reformatted stream.

Abstract: An image processing method including the following steps is provided. First, a two-dimensional original image is received. Next, a plurality of depth values corresponding to the two-dimensional original image are received. Afterwards, a two-dimensional shifting image is obtained according to the depth values and a standard value. A plurality of shifting values exist between the two-dimensional shifting image and the two-dimensional original image, and the shifting values are determined by a plurality of differences between the depth values and the standard value. Thereafter, a three-dimensional image is produced according to the two-dimensional original image and the two-dimensional shifting image.

Abstract: A video processing device may extract a plurality of view sequences from a three-dimensional (3D) input video stream and generate a plurality of graphics sequences that correspond to local graphics content. Each of the plurality of graphics sequences may be blended with a corresponding view sequence from the extracted plurality of view sequences to generate a plurality of combined sequences The local graphics content may comprise on-screen display (OSD) graphics, and may initially be generated as two-dimensional (2D) graphics. The plurality of graphics sequences may be generated from the local graphics content, based on, for example, video information for the input 3D video stream, user input, and/or preconfigured conversion data. After blending the view sequences with the graphics sequences, the video processing device may generate a 3D output video stream. The generated 3D output video stream may then be transformed to 2D video stream if 3D playback is not available.

Abstract: A 3D caption display method for harmoniously merging and displaying closed caption with 3D image in a 3D display apparatus, and a 3D display apparatus suitable for implementing the method. When the 3D display apparatus receives image signals of first and second images for implementing 3D image in a stereoscopic scheme, the 3D display apparatus receives closed caption data only for a base view determined from the first and second images. Then, the display apparatus determines the position of a closed caption for an extended view based on the closed caption data for the base view and a certain 3D caption information, and formats caption graphic data for the base view and the extended view to output 3D closed caption in a stereoscopic format.

Abstract: Embodiments of the invention are generally directed to transmission and handling of three-dimensional video content. An embodiment of a method includes receiving a multimedia data stream including video data utilizing an interface protocol and determining that the received video data includes three-dimensional (3D) video data, where each frame of the video data includes a first vertical synchronization (Vsync) signal prior to an active data region, the active data region including a first data region and a second data region. The method further includes converting the 3D video data from a 3D data format to a two-dimensional (2D) video format, where converting the 3D video data includes identifying a region between the first data region and the second data region, inserting a second Vsync signal between the first data region and the second data region, and providing an identifier to distinguish between the first data region and the second data region.

Abstract: A video processing device may generate a two dimensional (2D) output video stream from a three dimensional (3D) input video stream that comprises a plurality of view sequences. The plurality of view sequences may comprise sequences of stereoscopic left and right reference fields or frames. A view sequence may initially be selected as a base sequence for the 2D output video stream, and the 2D output video stream may be enhanced using video content and/or information from unselected view sequences. The video content and/or information utilized in enhancing the 2D output video stream may comprise depth information, and/or foreground and/or background information. The enhancement of the 2D input video stream may comprise improving depth, contrast, sharpness, and/or rate upconversion using frame and/or field based interpolation of images in the 2D output video stream.

Abstract: Several implementations relate to view synthesis with heuristic view merging for 3D Video (3DV) applications. According to one aspect, a first candidate pixel from a first warped reference view and a second candidate pixel from a second warped reference view are assessed based on at least one of a backward synthesis process to assess a quality of the first and second candidate pixels, a hole distribution around the first and second candidate pixels, or on an amount of energy around the first and second candidate pixels above a specified frequency. The assessing occurs as part of merging at least the first and second warped reference views into a signal synthesized view. Based on the assessing, a result is determined for a given target pixel in the single synthesized view. The result may be determining a value for the given target pixel, or marking the given target pixel as a hole.

Abstract: Disclosed are a display apparatus and a control method thereof. The display apparatus may include a signal receiving unit which receives a three-dimensional (3D) image signal, the 3D image signal including a left eye image and a right eye image; a converter which converts a format of the 3D image signal into a second transmission format if the format of the 3D image signal is of a first transmission format; a 3D processor which processes the converted 3D image signal for 3D display; and a display unit which performs the 3D display with regard to the processed 3D image signal. With this configuration, it is possible to convert a 3D image signal of a new standard into a format which can be processed by a system which processes a 3D image signal according to a previously existing standard.

Abstract: Provided is a camera apparatus, including: a camera unit including at least two cameras to acquire a stereoscopic image; a camera control unit to adjust a view angle of the at least two cameras and an interval between the at least two cameras; a depth information obtainment unit to obtain depth information from the stereoscopic image; and an intermediate image generator to generate an intermediate image based on the stereoscopic image and the depth information.

Abstract: A video processing device may enhance sharpness of one or more of a plurality of view sequences extracted from a three dimensional (3D) input video stream. The plurality of extracted view sequences may comprise stereoscopic left and right view sequences of reference fields or frames. The sharpness enhancement processing may be performed based on sharpness related video information, which may be derived from other sequences in the plurality of view sequences, user input, embedded control data, and/or preconfigured parameters. The sharpness related video information may enable classifying images in the 3D input video streams into different regions, and may comprise depth related data and/or point-of-focus related data. Sharpness enhancement processing may be performed variably on background and foreground regions, and/or on in-focus or out-of-focus regions. A 3D output video stream for display may be generated from the plurality of view sequences based on the sharpness processing.

Abstract: The present invention relates to a 3-dimensional (3D) video communication method, a 3D video sending device, a 3D video communication system, an image reconstruction method, and an image reconstruction system. The 3D video communication method includes: obtaining video image data of a scene collected by image collecting apparatuses, where the video image data includes at least one depth image and at least two color images; and encoding the video image data and sending the encoded video image data. The system includes a sending device and a receiving device. The sending device obtains at least one depth image and at least two color images of the scene through the image collecting apparatuses, the obtained depth images are accurate and reliable, and the collection of the video images is highly real-time.

Abstract: A media player may read three-dimensional (3D) video data comprising a plurality of view sequences of frames or fields from a media storage device, and may decimate one or more of the view sequences to enable transferring the video data to a display device. The media player may determine operational parameter(s) and/or transfer limitation(s) of a connecting subsystem used to transfer the video data to the display device. The decimation may be performed based on this determination of transfer limitation(s). The decimation may be performed temporally and/or spatially. The plurality of view sequences may comprise sequences of stereoscopic left and right view reference frames or fields. The decimation may be performed such that the removed data for each view sequence may be reconstructed, after reception, based on remaining data in the same view sequence and/or video data of other corresponding view sequences.

Abstract: [Object] To maintain consistency of perspective with each object in an image in the display of overlay information. [Solution] A video framing unit 112 manipulates left eye image data and right eye image data into a state according to the transmission mode, thereby obtaining stereoscopic image data for transmission. On the basis of the left eye image data and the right eye image data, at a predetermined position within an image, a view vector detecting unit 114 detects a view vector that is disparity information of one of a left eye image and a right eye image with respect to the other. A view vector encoder 115 generates an elementary stream of view vector. By a multiplexer 122, bit stream data into which the view vector stream is multiplexed in addition to a video stream, an audio stream, a graphics stream, and the like, is generated and transmitted.

Abstract: A three dimensional (3D) image synchronization apparatus and a 3D image providing system are provided. The 3D image synchronization apparatus synchronizes at least one input 3D image using a single sync signal and outputs the synchronized 3D image. Accordingly, the plurality of display apparatus are synchronized with one another according to a single sync signal.