Method and device for entropy encoding, decoding video signal

Abstract

5 The present disclosure provides a method for decoding a video signal, the method comprising the steps of: decoding, from a bitstream, a syntax element indicating the last non-zero region, wherein the last non-zero region represents a region including the last non-zero transform coefficient in a scan order; splitting a current block into 10 multiple sub-regions; and based on the syntax element, determining the last non-zero region of the current block among the split sub-regions. 20 25 22 08 93 26 A ug 2 02 5 M E T H O D A N D D E V I C E F O R E N T R O P Y E N C O D I N G , D E C O D I N G V I D E O 1 0 2 0 2 5 2 2 0 8 9 3 2 6 A u g 2 0 2 5 S I G N A L A B S T R A C T 5 T h e p r e s e n t d i s c l o s u r e p r o v i d e s a m e t h o d f o r d e c o d i n g a v i d e o s i g n a l , t h e m e t h o d c o m p r i s i n g t h e s t e p s o f : d e c o d i n g , f r o m a b i t s t r e a m , a s y n t a x e l e m e n t i n d i c a t i n g t h e l a s t n o n - z e r o r e g i o n , w h e r e i n t h e l a s t n o n - z e r o r e g i o n r e p r e s e n t s a r e g i o n i n c l u d i n g t h e l a s t n o n - z e r o t r a n s f o r m c o e f f i c i e n t i n a s c a n o r d e r ; s p l i t t i n g a c u r r e n t b l o c k i n t o m u l t i p l e s u b - r e g i o n s ; a n d b a s e d o n t h e s y n t a x e l e m e n t , d e t e r m i n i n g t h e l a s t n o n - z e r o r e g i o n o f t h e c u r r e n t b l o c k a m o n g t h e s p l i t s u b - r e g i o n s . 5

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