US Patent Application 18246257. HISTORY-BASED MOTION VECTOR PREDICTION AND MODE SELECTION FOR GRADUAL DECODING REFRESH simplified abstract
HISTORY-BASED MOTION VECTOR PREDICTION AND MODE SELECTION FOR GRADUAL DECODING REFRESH
Organization Name
Inventor(s)
Seungwook Hong of San Diego CA (US)
Limin Wang of San Diego CA (US)
Krit Panusopone of San Diego CA (US)
HISTORY-BASED MOTION VECTOR PREDICTION AND MODE SELECTION FOR GRADUAL DECODING REFRESH - A simplified explanation of the abstract
This abstract first appeared for US patent application 18246257 titled 'HISTORY-BASED MOTION VECTOR PREDICTION AND MODE SELECTION FOR GRADUAL DECODING REFRESH
Simplified Explanation
- The patent application describes a method, apparatus, and computer program product for managing history-based motion vector prediction (HMVP) processes for Gradual Decoding Refresh (GDR) pictures. - It also discusses efficient implementations of mode selection within a GDR period and tuning of coding tools such as in-loop filters and Luma Mapping with Chroma Scaling (LMCS). - The method involves accessing a current coding unit of a picture and accessing information associated with coding unit references. - The method further involves determining candidate coding unit references based on a comparison of an associated index value to a dirty index. - At least one coding unit is then assigned to a candidate list for selection in a coding process.
Original Abstract Submitted
A method, apparatus, and computer program product provide for management of history-based motion vector prediction (HMVP) processes for Gradual Decoding Refresh (GDR) pictures, as well as efficient implementations of mode selection within a GDR period and tuning of coding tools such as in-loop filters and Luma Mapping with Chroma Scaling (LMCS) such that current coding units within a clean area avoid use of coding information within a dirty area of a picture. In the context of a method, the method accesses a current coding unit of a picture. The method also accesses information associated with coding unit references each associated with a respective inter-coded coding unit. The method also determines at least one candidate coding unit reference based at least upon a comparison of an associated index value to a dirty index, and assigns at least one coding unit to a candidate list for selection in a coding process.
