Method for encoding video

Patent metadata

Field	Value
Publication number	US-10812799-B2
Application number	US-201916458644-A
Country	US
Kind code	B2
Filing date	Jul 1, 2019
Priority date	Jul 11, 2011
Publication date	Oct 20, 2020
Grant date	Oct 20, 2020

Abstract

A method for decoding video includes receiving a frame of the video that includes at least one slice and at least one time. Each of the at least one slice and the at least one tile are not all aligned with one another. Each of the at least one slice is characterized that it is decoded independently of the other the at least one slice. Each of the at least one tile is characterized that it is a rectangular region of the frame and having coding units for the decoding arranged in a raster scan order. The at least one tile of the frame are collectively arranged in a raster scan order of the frame.

First claim

We claim:

1. A method for decoding video comprising:
(a) receiving a bit-stream of a frame of said video that includes at least one slice and at least one tile, wherein, said at least one tile is a rectangular region of said frame, and a width of said at least one tile is less than a width of said frame, and said at least one tile includes a plurality of rows of coding units arranged in a raster scan order;
(b) decoding a first syntax element in a slice header of said at least one slice indicating whether bit-stream location information of said at least one tile is transmitted within said slice header of the at least one slice; and
(c) in a case when the first syntax element indicates bit-stream location of said at least one tile is transmitted within said slice header, decoding a second syntax element in said slice header of said at least one slice indicating a bit-stream location of said at least one tile in the bit-stream.

2. The method of claim 1 , wherein the second syntax element indicates a byte location of the at least one tile in the bit-stream.

3. The method of claim 1 further comprising:
decoding each of said at least one tile by decoding said plurality of rows of coding units included in said at least one tile in the raster scan order.

4. A decoding device for decoding video comprising:
circuitry configured to:
(a) receive a bit-stream of a frame of said video that includes at least one slice and at least one tile, wherein, said at least one tile is a rectangular region of said frame, and a width of said at least one tile is less than a width of said frame, and said at least one tile includes a plurality of rows of coding units arranged in a raster scan order;
(b) decode a first syntax element in a slice header of said at least one slice indicating whether bit-stream location information of said at least one tile is transmitted within said slice header of the at least one slice; and
(c) in a case when the first syntax element indicates bit-stream location of said at least one tile is transmitted within said slice header, decode a second syntax element in said slice header of said at least one slice indicating a bit-stream location of said at least one tile in the bit-stream.

5. The decoding device of claim 4 , wherein the second syntax element indicates a byte location of the at least one tile in the bit-stream.

6. The decoding device of claim 4 further comprising:
the circuitry further configured to:
decode each of said at least one tile by decoding said plurality of rows of coding units included in said at least one tile in the raster scan order.

7. A non-transitory computer readable medium storing instructions which when executed cause a computer to perform a method, the method comprising:
(a) receiving a bit-stream of a frame of said video that includes at least one slice and at least one tile, wherein, said at least one tile is a rectangular region of said frame, and a width of said at least one tile is less than a width of said frame, and said at least one tile includes a plurality of rows of coding units arranged in a raster scan order;
(b) decoding a first syntax element in a slice header of said at least one slice indicating whether bit-stream location information of said at least one tile is transmitted within said slice header of the at least one slice; and
(c) in a case when the first syntax element indicates bit-stream location of said at least one tile is transmitted within said slice header, decoding a second syntax element in said slice header of said at least one slice indicating a bit-stream location of said at least one tile in the bit-stream.

8. The non-transitory computer readable medium of claim 7 , wherein the second syntax element indicates a byte location of the at least one tile in the bit-stream.

9. The non-transitory computer readable medium of claim 7 , wherein the method further comprises:
decoding each of said at least one tile by decoding said plurality of rows of coding units included in said at least one tile in the raster scan order.

Assignees

• Velos Media Llc

Inventors

• Misra Kiran
• Segall Christopher

Classifications

• H04N19/70 Primary

  characterised by syntax aspects related to video coding, e.g. related to compression standards · CPC title

• H04N19/91

  Entropy coding, e.g. variable length coding [VLC] or arithmetic coding · CPC title

• H04N19/13

  Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC] · CPC title

• H04N19/176

  the region being a block, e.g. a macroblock · CPC title

• H04N19/174

  the region being a slice, e.g. a line of blocks or a group of blocks · CPC title