Video encoding and decoding methods and apparatuses
First Claim
1. A video encoding method comprising:
- determining an encoding operation to encode raw video among a frame encoding operation, a top/bottom field encoding operation, and a left/right field encoding operation based on at least one characteristic of the raw video; and
generating a bit stream by adaptively performing the encoding operation which is determined to encode the raw video.
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Abstract
Video encoding and decoding methods and apparatuses are provided which are effective for error correction and error concealment in an error-prone environment. The video encoding method includes determining an encoding operation to encode raw video among a frame encoding operation, a top/bottom field encoding operation, and a left/right field encoding operation based on at least one characteristic of the raw video; and generating a bit stream by adaptively performing the encoding operation that is determined to encode the raw video. Further, video may be divided into frame pictures, top/bottom field pictures and left/right field pictures, and encoded accordingly. Therefore, a compression rate can be increased, and error correction and concealment can be effectively performed on a lost field by using a normally received field.
88 Citations
48 Claims
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1. A video encoding method comprising:
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determining an encoding operation to encode raw video among a frame encoding operation, a top/bottom field encoding operation, and a left/right field encoding operation based on at least one characteristic of the raw video; and
generating a bit stream by adaptively performing the encoding operation which is determined to encode the raw video. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A video encoding method comprising:
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encoding a raw video in a base layer and generating a base-layer-bit stream;
determining an encoding operation to encode the raw video among a frame enhancement-layer encoding operation, a top/bottom field enhancement-layer encoding operation, and a left/right field enhancement-layer encoding operation based on at least one characteristic of the raw video; and
generating an enhancement-layer bit stream by adaptively performing the enhancement-layer encoding operation which is determined to encode the raw video. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A video decoding method comprising:
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determining an encoding operation of encoding a bit stream which is received; and
generating a decoded video by adaptively performing one of a frame decoding operation, a top/bottom field decoding operation, and a left/right field decoding operation based on the encoding operation which is determined. - View Dependent Claims (15, 16, 17)
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18. A video decoding method comprising:
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decoding a base-layer bit stream and generating a base-layer video;
determining an encoding operation of encoding an enhancement-layer bit stream which is received separately from the base-layer bit stream; and
generating an enhancement-layer video by adaptively performing one of a frame enhancement-layer decoding operation, a top/bottom field enhancement-layer decoding operation, and a left/right field enhancement-layer decoding operation on the enhancement-layer bit stream which is received according to the encoding operation which is determined. - View Dependent Claims (19, 20, 21, 22)
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23. A video encoding apparatus comprising:
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an encoding operation determiner which determines an encoding operation to encode raw video among a frame encoding operation, a top/bottom field encoding operation, and a left/right field encoding operation based on at least one characteristic of the raw video; and
an encoder which generates a bit stream by adaptively performing the encoding operation which is determined to encode the raw video. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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30. A video encoding apparatus comprising:
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a base-layer encoder which encodes a raw video in a base layer and generates a base-layer bit stream;
an encoding operation determiner which determines an encoding operation to encode the raw video among a frame enhancement-layer encoding operation, a top/bottom field enhancement-layer encoding operation, and a left/right field enhancement-layer encoding operation based on at least one characteristic of the raw video; and
an enhancement-layer encoder which generates an enhancement-layer bit stream by adaptively performing the enhancement-layer encoding operation which is determined to encode the raw video. - View Dependent Claims (31, 32, 33, 34, 35)
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36. A video decoding apparatus comprising:
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an encoding method determiner which determines an encoding operation of encoding a bit stream which is received; and
a decoder which generates a decoded video by adaptively performing one of a frame decoding operation, a top/bottom field decoding operation, and a left/right field decoding operation according to the encoding operation which is determined. - View Dependent Claims (37, 38, 39, 40)
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41. A video decoding apparatus comprising:
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a base-layer decoder which decodes a base-layer bit stream and generates a base-layer video;
an encoding method determiner which determines an encoding operation to encode an enhancement-layer bit stream which is received separately from the base-layer bit stream; and
an enhancement-layer decoder which generates an enhancement-layer video by adaptively performing one of a frame enhancement-layer decoding operation, a top/bottom field enhancement-layer decoding operation, and a left/right field enhancement-layer decoding operation on the enhancement-layer bit stream according to the decoding operation that is determined. - View Dependent Claims (42, 43, 44, 45, 46)
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47. A computer-readable recording medium on which a program for executing a video encoding method, the video encoding method comprising:
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determining an encoding operation to encode raw video among a frame encoding operation, a top/bottom field encoding operation, and a left/right field encoding operation based on at least one characteristic of the raw video; and
generating a bit stream by adaptively performing the encoding operation which is determined to encode the raw video.
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48. A computer-readable recording medium on which a program for executing a video decoding method, a video decoding method comprising:
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determining an encoding operation of encoding a bit stream which is received; and
generating a decoded video by adaptively performing one of a frame decoding operation, a top/bottom field decoding operation, and a left/right field decoding operation based on the encoding operation which is determined.
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Specification