Lg Electronics Inc.

Taeil Chung

Jaehyun Lim

Joonyoung Park

Yongjoon Jeon

Byeongmoon Jeon

Seungwook Park

Jaewon Sung

Younghee Choi

Jingyeong Kim

Sangchul Kim

Jungsun Kim

Sangheon Lee

Jaehyeok Lee

Yoonjung Kim

Jonghun Yoo

Dahyun Yoon

Nara Lee

Taggun Lee

Heamin Lee

The method for deriving a temporal motion vector predictor according to the present invention comprises the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit. The present invention enhances image compression efficiency.

Method for encoding image and non-transitory computer readable storage medium storing a bitstream generated by a method

The present invention relates to a transmission apparatus and reception apparatus for parallel data streams. The present specification discloses a wireless stream transmission apparatus comprising: an encoder for dividing an inputted picture into multiple areas and performing, for each area, encoding so as to generate a bitstream including a header and data; a DS generating unit for removing or modifying at least a portion of headers related to the multiple areas into compact headers, and combining, with the data, at least the remaining headers which have not been removed or the compact headers so as to generate a data stream for each area; and a communication unit for packing the data stream so as to generate a packet, and transmitting, on the basis of wireless communication, the packet to a wireless stream reception apparatus. By using modified headers in applications where real time is important, it is possible to reduce a traffic burden and satisfy low-latency requirements.

Transmission apparatus and reception apparatus for parallel data streams

The present invention relates to a method for decoding a bitstream for a video signal including at least one precinct, and a device for same. Specifically, the present invention relates to a method, and a device for same, the method including: a step for demultiplexing packets of the current precinct among the at least one precinct into a plurality of first packets and a plurality of second packets; and a step for entropy-decoding the plurality of first packets and the plurality of second packets in parallel, wherein the plurality of first packets and the plurality of second packets are respectively entropy-decoded in parallel by a first entropy decoder engine and a second entropy decoder engine, the plurality of first packets include packet 0, packet 1, packet 4, packet 6, and packet 8, and the plurality of second packets include packet 2, packet 3, packet 5, packet 7, and packet 9.

Video signal processing method and device

The disclosure relates to a device for transmitting a data stream and a device for receiving a data stream. Disclosed is a device for transmitting a data stream including: an encoder configured to generate a compressed bitstream by encoding input media, generate additional information about the compressed bitstream, and generate a data stream (DS) including the additional information and the compressed bitstream, wherein the additional information includes at least one class information indicating an importance of the compressed bitstream, and a DS transmitter configured to generate a packet by packing the data stream, transmit a plurality of packets including the generated packet to a reception device, and retransmit at least some of the plurality of packets due to transmission error, wherein the retransmitted packets are identified based on at least corresponding class information.

Devices and system for transmitting and receiving compressed bitstream via wireless stream and handling transmission error

Method for encoding and decoding image and device using same

A method for encoding a video signal that includes determining a bit budget for a current precinct, determining a quantization parameter for the current precinct based on the determined bit budget, and determining a bit budget for sign information of the wavelet coefficient information based on that the number of significant bits of the wavelet coefficient information is greater than a truncation position. The method also includes performing quantization on the wavelet coefficient information based on that the significant bit number of the wavelet coefficient information is equal to the truncation position, such that the quantization is skipped based on that the significant bit number of the wavelet coefficient information is greater than the truncation position.

Method and apparatus for processing video signal

Method and apparatus for deriving a temporal motion vector predictor are described. A method for deriving a temporal motion vector predictor according to the present invention includes selecting a reference picture for a current block, determining a prediction block that corresponds to a predetermined storage unit block in the reference picture as a reference prediction unit for the current block, and deriving a temporal motion vector predictor from motion information of the determined reference prediction unit. According to the present invention, image compression efficiency can be improved.

A method for deriving a temporal motion vector predictor includes the steps of: selecting a reference picture for a current block; deciding a predictor block corresponding to a predetermined storage unit block, as a reference prediction unit for the current block, in the reference picture; and deriving the temporal motion vector predictor from motion information of the decided reference prediction unit.

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Seoul, South Korea

Taeil Chung