Abstract:
PURPOSE: A method for encoding/decoding a depth image and an apparatus thereof are provided to enable a decoder to correct errors generated during a depth image coding/decoding process using characteristic information of a depth image. CONSTITUTION: A depth image decoder receives characteristic information of a depth image (S910). The depth image decoder decodes the received characteristic information of the depth image (S920). When the decoding of the received characteristic information is completed, the depth image decoder decodes the depth image using the decoded characteristic information (S930). [Reference numerals] (S910) Receive characteristic information of a depth image; (S920) Decode the received characteristic information of the depth image; (S930) Decode the depth image using the decoded characteristic information
Abstract:
PURPOSE: An operation mode adaptive transmission device and a method thereof are provided to improve system performance and to increase cable resource use efficiency. CONSTITUTION: A frequency interleaving unit (102) performs frequency interleaving to obtain frequency diversity of a mapping processed signal. A pilot and preamble insertion unit (103) inserts block unit preamble and pilot into the frequency interleaved signal. An IFFT (Inverse Fast Fourier Transform) unit (104) inverse-fast-Fourier-transforms the block unit preamble and a pilot-inserted signal. A CP (Cycle Prefix) insertion unit (105) inserts a CP greater than a channel delay time into the IFF transformed signal. A DAC (Digital-to-Analog Converter)/RF unit (106) coverts the digital signal inputted to the CP insertion unit and transforms a baseband signal into an RF band signal. [Reference numerals] (101) Signaling mapping view; (102) Frequency interleaving unit; (103) Pilot and preamble insertion unit; (104) IFFT(Inverse Fast Fourier Transform) unit; (105) CP(Cycle Prefix) insertion unit; (106) DAC(Digital-to-Analog Converter)/RF unit; (107) FFT unit; (108) Preamble insertion unit; (109) Over sampling unit; (110) Pulse connection filtering unit; (AA) Channel encoding generating signal
Abstract:
PURPOSE: An additional image encoding/decoding method and an apparatus using thereof are provided to limit the number of scaling in a candidate prediction movement vector, thereby reducing the encoding/decoding time. CONSTITUTION: An additional image encoder encodes a first additional image(S300). The additional image encoder filters the first additional image(S310). The additional image encoder encodes a filtering coefficient(S320). The additional image encoder encodes a second additional image based on the filtered first additional image(S330). [Reference numerals] (AA) Start; (BB) End; (S300) Encode a first additional image; (S310) Filter the first additional image; (S320) Encode a filtering coefficient; (S330) Encode a filtered second additional image based on the first additional image
Abstract:
PURPOSE: A method for estimating the timing of a symbol used in a cable network communicating with an OFDM method is provided to reduce hardware complexity in an OFDM receiver while maintaining symbol timing estimation performance. CONSTITUTION: An OFDM symbol including a cyclic symbol is received(510). An energy property of the OFDM symbol is calculated by using a pre-established SNR(Signal to Noise Ratio)(520). The timing of the OFDM symbol is estimated on the basis of the calculated energy property of the OFDM symbol and the correlation property of the OFDM symbol(530). [Reference numerals] (510) Step of receiving an OFDM symbol including a cyclic symbol; (520) Step of calculating energy property of the OFDM symbol by using a pre-established SNR; (530) Step of estimating timing of the OFDM symbol on the basis of the energy property and correlation property of the OFDM symbol; (AA) Start; (BB) End
Abstract:
PURPOSE: A transceiving device for 2D mode play in a digital terminal, a 2D mode play device in the digital terminal, and a method thereof are provided to selective supply a higher quality image from among two eye images by using additional 3D-related information when playing a received 3D program in a 2D form. CONSTITUTION: A generating unit(910) generates additional 3D-related information. The additional 3D-related information includes identification information indicating a proper image for a 2D mode from among additional images and reference images composing a 3D program. An identification information generating unit(915) of the generating unit generates the identification information based on a format type of stereoscopic content. A providing unit(930) provides the additional 3D-related information to a 3D terminal. [Reference numerals] (910) Generating unit; (915) Identification information generating unit; (930) Providing unit
Abstract:
PURPOSE: A signal transceiving method and an apparatus thereof are provided to increase the amount of transmitted data by easily performing a signal separation in a receiving side. CONSTITUTION: A first transmission processor(11) includes a S/P[Serial-to-Parallel] converting unit(110), a symbol mapping unit(111), an IFFT[inverse fast fourier transform] unit(112), a P/S[Parallel-to-Serial] converting unit(113), a scaling unit(114), and an angle modulating unit(115). The S/P converting unit converts inputted data into parallel data. The symbol mapping unit generates a symbol signal by mapping a symbol to the parallel data. The IFFT unit converts the symbol signal with IFFT. The P/S converting unit converts the IFFT-converted signal into a serial type signal. The scaling unit scales the serial type signal. The angle modulating unit modulates the scaled signal. A second transmission processor(12) includes a S/P converting unit(120), an IFFT unit(122), a P/S converting unit(123), a scaling unit(124), a phase adjusting unit(125), and an angle modulating unit(126). The S/P converting unit converts inputted data into parallel data. The phase adjusting unit adjusts the phase of a scaled signal. The angle modulating unit modulates the phase-adjusted signal. [Reference numerals] (1) Transmission device; (110,120) S/P converting unit; (111,121) Symbol mapping unit; (112,122) IFFT unit; (113,123) P/S converting unit; (114,124) Scaling unit; (115,126) Angle modulating unit; (125) Phase adjusting unit; (AA) Input data #1; (BB) Input data #2; (CC) Transmission signal
Abstract:
PURPOSE: A signaling method for a stereoscopic video service and an apparatus capable of using the method are provided to offer a stereoscopic service by using additional descriptor information. CONSTITUTION: An encoding device determines an encoded stream type(S200). The encoding device determines a reference image stream of an elementary stream(S210). The encoding device determines whether the elementary stream is a left image stream or a right image stream(S220). The encoding device determines the upsampling information of additional image(S230). The encoding device determines the information of a subsampling line(S240). [Reference numerals] (AA) Start; (BB) End; (S200) Determine an encoded stream type; (S210) Determine a reference image stream of an elementary stream; (S220) Determine whether or not the elementary stream is a left image stream or a right image stream; (S230) Determine upsampling information of an additional image; (S240) Determine information of a subsampled line
Abstract:
PURPOSE: A transmitting method and an apparatus of stereoscopic image information are provided to offer various types of stereoscopic image services. CONSTITUTION: A stereoscopic image information transmitter comprises a signaling table(S110). The apparatus transmits the image information including the comprised signaling table information and the image data information to an image information receiver(S120). The signaling information includes the service type information in which the service type of a video stream indicates the recognition of a two-dimensional monoscopic service or the recognition of a three-dimensional stereoscopic service. [Reference numerals] (AA) Start; (BB) End; (S110) Comprise a signaling table; (S120) Transmit image information
Abstract:
본 발명은 서로 다른 시점(viewpoint)을 가지는 복수의 카메라가 각기 촬영한 다시점(multi-viewpoint) 동영상 데이터들을 부호화하기 위하여 적응적으로 움직임 벡터를 예측하는 방법 및 장치에 관한 것으로서, 본 발명은 현재 블록의 인접 블록 중 현재 블록이 시간적 또는 공간적으로 참조하는 블록과 동일한 블록을 참조하는 블록만을 검출하는 블록 검출부; 및 블록 검출부에서 검출된 블록의 움직임 벡터를 기초로 현재 블록의 예측 움직임 벡터값을 구하는 적응적 예측부를 포함하여 적응적으로 움직임 벡터를 예측함으로써 압축률을 개선한다.
Abstract:
PURPOSE: A method for encoding and decoding a video and a device thereof are provided to support space, time, quality, and point scalability. CONSTITUTION: An encoder(510) receives N images and encodes the images. A bitstream extracting device(520) receives a bitstream transmitted from the encoder and outputs a bitstream which includes a top layer corresponding to spatial resolution, temporal resolution, image quality resolution, and a view number. A decoder(530) decodes the outputted bitstream. [Reference numerals] (510) Encoder; (520) Bitstream extracting device; (530) Decoder; (AA) First time image; (BB) Second time image; (CC) N-th time image; (DD) Encoded bitstream; (EE) Information about space, time, image quality and time layer; (FF) Extracted bitstream; (GG) Firs time output image; (HH) Second time output image; (II) D-th time output image;