Lg electronics inc. (20240414354). INTRA PREDICTION MODE DERIVATION-BASED INTRA PREDICTION METHOD AND DEVICE

INTRA PREDICTION MODE DERIVATION-BASED INTRA PREDICTION METHOD AND DEVICE

Organization Name

lg electronics inc.

Inventor(s)

Seunghwan Kim of Seoul (KR)

Jie Zhao of Seoul (KR)

Seethal Paluri of Seoul (KR)

INTRA PREDICTION MODE DERIVATION-BASED INTRA PREDICTION METHOD AND DEVICE

This abstract first appeared for US patent application 20240414354 titled 'INTRA PREDICTION MODE DERIVATION-BASED INTRA PREDICTION METHOD AND DEVICE

Original Abstract Submitted

according to one embodiment of the present disclosure, a method by which a decoding device decodes an image is provided. the method comprises the steps of: acquiring image information from a bit-stream; determining whether at least one from among a template-based inter mode derivation (timd) mode and decoder-side intra mode derivation (dimd) mode is applied to the current block; generating a prediction sample of the current block on the basis of the at least one from among the timd mode and dimd mode; and generating a reconstructed sample of the current block on the basis of the prediction sample of the current block, wherein the timd mode is derived from a template of the current block and the dimd mode is derived on the basis of the gradient of adjacent reference samples of the current block.