METHOD AND DEVICE FOR ENCODING/DECODING IMAGES BASED ON SUB-FRAMES AND METHOD FOR TRANSMITTING A BIT STREAM Russian patent published in 2023 - IPC H04N19/132 H04N19/105 H04N19/176 H04N19/573 H04N19/70 

Abstract RU 2803197 C1

FIELD: encoding/decoding images.

SUBSTANCE: invention helps determining whether or not bi-directional optical flow (BDOF) or prediction granularity with optical flow (PROF) is applied to the current block, based on the BDOF or PROF applied to the current block, sampling the current block prediction sample from the current block reference frame based on motion information of the current block and extracting a detailed prediction sample of the current block by applying BDOF or PROF to the current block based on the sampled prediction sample.

EFFECT: provision of efficient encoding and decoding.

6 cl, 38 dwg, 2 tbl

Similar patents RU2803197C1

Title Year Author Number
IMAGE DECODING METHOD TO PERFORM INTER FRAME PREDICTION WHEN PREDICTION MODE FOR CURRENT BLOCK CANNOT BE SELECTED AND DEVICE FOR THIS METHOD 2020
  • Jang, Hyeongmoon
  • Park, Naeri
  • Kim, Seunghwan
RU2793902C1
IMAGE ENCODING AND DECODING EQUIPMENT AND IMAGE DATA TRANSMISSION EQUIPMENT 2020
  • Jang, Hyeongmoon
  • Park, Naeri
  • Kim, Seunghwan
RU2820148C2
METHOD AND DEVICE FOR MUTUAL FORECASTING BASED ON DVD AND BDOF 2020
  • Park, Naeri
  • Nam, Junghak
  • Jang, Hyeongmoon
RU2777969C1
METHOD AND DEVICE FOR MUTUAL PREDICTION BASED ON DETAILS OF MOTION VECTORS ON THE SIDE OF THE DECODER (DMVR) AND BIDIRECTIONAL OPTICAL FLOW (BDOF) 2020
  • Park, Naeri
  • Nam, Junghak
  • Jang, Hyeongmoon
RU2803564C2
METHOD AND DEVICE FOR MUTUAL PREDICTION BASED ON DECODER-SIDE MOTION VECTOR REFINEMENT (DMVR) AND BIDIRECTIONAL OPTICAL FLOW (BDOF) 2020
  • Park, Naeri
  • Nam, Dzungkhak
  • Dzang, Khieongmoon
RU2805521C2
METHOD AND EQUIPMENT FOR IMAGE ENCODING/DECODING TO PERFORM IN-LOOP FILTRATION BASED ON SUB-FRAME STRUCTURE AND METHOD FOR TRANSMITTING A BIT STREAM 2020
  • Jang, Hyeong Moon
  • Paluri, Seethal
  • Hendry, Hendry
  • Nam, Jung Hak
RU2801265C1
METHOD AND EQUIPMENT FOR IMAGE ENCODING/DECODING TO PERFORM IN-LOOP FILTRATION BASED ON SUB-FRAME STRUCTURE AND METHOD FOR TRANSMITTING BIT STREAM 2020
  • Jang, Hyeong Moon
  • Paluri, Seethal
  • Hendry, Hendry
  • Nam, Jung Hak
RU2815430C2
METHOD AND EQUIPMENT FOR PROCESSING OF VIDEO DATA 2020
  • Jang, Hyeongmoon
  • Nam, Junghak
RU2789452C2
METHOD AND EQUIPMENT FOR IMAGE ENCODING 2020
  • Choi, Jangwon
  • Nam, Junghak
RU2807256C2
EQUIPMENT AND METHOD OF ENCODING IMAGES BASED ON CROSS-COMPONENT ADAPTIVE CONTOUR FILTERING 2020
  • Choi, Jangwon
  • Nam, Junghak
RU2822989C1

RU 2 803 197 C1

Authors

Jang, Hyeong Moon

Dates

2023-09-11Published

2020-09-23Filed