Electronics and Telecommunications Research Institute

Other

Net & Tv Inc.

Park, Gwang-hoon

Nong Hyup Bank, As Trustee for Kdb Infra IP Capital Fund

Young-Kwon Lim

Myoung-Ho Lee

Jin Woong Kim

Jin Woo Hong

Won-Sik Cheong

Yoon-Jin Lee

Jin-Woong Kim

Kyu-Heon Kim

Gwang-Hoon Park

Chie-Teuk Ahn

Soo In Lee

Gun Bang

Kug Jin Yun

Namho Hur

Hyun-Cheol Kim

Kyuheon Kim

Jae-Gark Choi

Han Kyu Lee

Jin-Suk Kwak

Ji-Sang Yoo

Hee-Dong Chang

Jun-Geun Jeon

Jihun Cha

Ye-Sun Joung

Injae Lee

The present invention relates to a stereoscopic content service system and method, and more particularly to a stereoscopic content service system and method which defines a Scene Descriptor (SD) including information required for stereoscopic contents, displays the stereoscopic contents based on the information of the defined SD, and thereby may perform a two-dimension (2D)/three-dimension (3D) display conversion through user interaction and display a stereoscopic text based on information about a left and right text and disparity information.

Stereoscopic content service system and method

Provided is a Simple Aggregation Format (SAF) synchronization packet structure including a SAF synchronization packet header and a SAF synchronization packet payload and multiplexing diverse element streams which include a scene description elementary stream. The SAF synchronization packet header includes time information related to an access unit included in the SAF synchronization packet payload, and the SAF synchronization packet payload includes header information on the access unit and payload information indicating the access unit. Since the present invention can multiplex diverse elementary streams effectively and simply into one data stream, synchronized data transmission is possible. Since the present invention accommodates a synchronization layer packet of the MPEG-4 system, it can be easily integrated with the MPEG-4 system and utilize the advantage of the MPEG-4 synchronization layer packet such as the concept of an access unit or a degradation priority.

SAF synchronization layer packet structure and server system therefor

A water ring encoding method of processing an initial data set, such as an image frame, is disclosed having a writing step and an encoding step. The initial data set is organized with at least one initial origin enveloped by a plurality of nested initial environs successively surrounding each other in the initial data set. The writing step includes writing a portion of data from the initial data set into a scanned data string, by starting the writing of the portion of the data from the initial data set into the scanned data string at the RC grouping corresponding to the initial origin (initial water ring ()) and by sequentially progressing the writing outwardly from the family of RC groupings corresponding to the nearest nested initial environ (initial water ring ()) towards the family of RC groupings corresponding to a furthest nested initial environ (initial water ring (n)). The encoding step includes encoding the scanned data string into an encoded data string.

Water ring encoding method

A water ring decoding apparatus configured to process a data string into a restored data set, such as a video image frame, is disclosed. The restored data set is organized with at least one restored origin enveloped by a plurality of nested restored environs successively surrounding each other in the restored data set. The decoder is configured to write the data string into the restored data set by starting at the RC group corresponding to the restored origin (restored water ring (0)) and by sequentially progressing outwardly from the family of RC groups corresponding to the nearest nested restored environ (restored water ring (1)) towards the family of RC groups corresponding to a furthest nested restored environ (restored water ring (n)).

Water ring decoding apparatus

A water ring decoding method of processing a data string into a restored data set, such as a video image frame, is disclosed. The restored data set is organized with at least one restored origin enveloped by a plurality of nested restored environs successively surrounding each other in the restored data set. The water ring decoding method includes the steps of decoding by writing the data string into the restored data set by starting at the RC group corresponding to the restored origin (restored water ring ()) and by sequentially progressing outwardly from the family of RC groups corresponding to the nearest nested restored environ (restored water ring ()) towards the family of RC groups corresponding to a furthest nested restored environ (restored water ring (n)).

Water ring decoding method

A water ring encoding apparatus configured to process an initial data set, such as a video image frame, is disclosed. The water ring encoding apparatus includes a a scanner and an encoder. The initial data set is organized with at least one initial origin enveloped by a plurality of nested initial environs successively surrounding each other in the initial data set. The scanner is configured to write a portion of the data from the initial data set into a scanned data string by starting at the RC grouping corresponding to the initial origin (initial water ring ()) and by sequentially progressing outwardly from the family of RC groupings corresponding to the nearest nested initial environ (initial water ring ()) towards the family of RC groupings corresponding to a furthest nested initial environ (initial water ring (n)). The encoder is configured to encode the scanned data string into an encoded data string.

Water ring encoding apparatus

A water ring scanning apparatus and method, and an apparatus and method for encoding/decoding video sequences using the same are disclosed. A water ring scanning apparatus includes: a preferential scan unit for scanning information on a water ring origin point (water_ring()) in an image frame, which is a most significant bit of the image frame to be preferentially scanned; a scan location decision unit for deciding a location of i_th generated water ring (water_ring(i)), which is a rectangular-shape ring surrounding the water ring origin point; and a scan unit for scanning information on the location of the i_th generated water ring.

Water ring scanning apparatus and method, and apparatus and method for encoding/decoding video sequences using the same

A water ring scanning method is disclosed for use in processing an initial data set, such as a video image frame, by writing a portion of data from the initial data set into a data string with a scanner. The initial data set is organized with at least one initial origin enveloped by a plurality of nested initial environs successively surrounding each other in the initial data set. The writing step starts by writing of the portion of the data from the initial data set into the data string at the RC grouping corresponding to the initial origin (initial water ring ()) and by sequentially progressing the writing outwardly from the family of RC groupings corresponding to the nearest nested initial environ (initial water ring ()) towards the family of RC groupings corresponding to a furthest nested initial environ (initial water ring (n)).

Water ring scanning method

A water ring scanning apparatus configured to process an initial data set, such as a video frame, is disclosed. The water ring scanning apparatus is configured to write a portion of data from the initial data set into a data string. The initial data set is organized with at least one initial origin enveloped by a plurality of nested initial environs successively surrounding each other in the initial data set. The scanner is configured to write a portion of the data from the initial data set into the data string by starting at the RC grouping corresponding to the initial origin (initial water ring (0)) and by sequentially progressing outwardly from the family of RC groupings corresponding to the nearest nested initial environ (initial water ring (1)) towards the family of RC groupings corresponding to a furthest nested initial environ (initial water ring (n)).

Water ring scanning apparatus

A video encoding method and a computer-readable record media for performing the method are disclosed, in which in carrying out the video encoding, an intra updating technique is adopted by sorting out the blocks requiring an intra updating by utilizing the bit stream size information for each block, thereby maximizing the intra updating effect. The video encoding method includes the following steps. That is, at a first step, an encoding method for each frame of incoming images is selected, and the images are divided into blocks of a certain size. At a second step, either an intra coded block encoding or an inter coded block encoding is carried out depending on whether an encoding of a current frame and an inter coded encoding are needed or not, and whether an intra coded block is relevant or not. Further, blocks requiring an intra updating are sorted out by utilizing a bit stream size information for each block if the inter coded encoding is needed. At a third step, the first and second steps are repeatedly carried out to the last frame.

Method for video encoding by utilizing intra updating technique based on error probabilities estimated from size of bit stream for each block

The present invention relates to a method of scalable transmission of video objects segmented by content-base, comprising the steps of: constituting a set of video objects to be transferred (TxSet); checking as to whether TxSet is the last portion of a video sequence, and then calculating a current transmission rate and a transmission tolerance data size; constituting a video object evaluation group (egs); comparing the data size of the video object evaluation group with a data size of TxSet elements plus a data amount of the video objects of the transmission priority j and then adding the video objection evaluation group (egs) to the TxSet; and checking as to whether the video object of the transmission priority j is the last element of the video object evaluation group i.

Scalable transmission method of visual objects segmented by content-base

A method of automatically dividing the domain of a motion picture is disclosed including the steps of: quantizing at least two sequential picture frames, and simplifying the shapes of the quantized picture frames; obtaining time space slope information from the quantized and simplified picture frames; detecting divides of the picture from the time space gradient information, and obtaining the boundaries between the divides, so as to divide the picture into multiple regions; combining neighboring smaller regions using graph theory, to thereby reduce the number of the divided regions; and dividing the regions into a motionless background object and moving objects, using motion information of the combined regions.

Growing community of inventors

Taejeon, South Korea

Young-Kwon Lim