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Encoding method and decoding method of frame field information, encoder and decoder

An encoder and decoder technology, applied in the direction of image communication, digital video signal modification, pulse modulation TV signal transmission, etc., can solve the problem of increasing encoding bit overhead, save encoding bit overhead, avoid encoding, and save decoding time Effect

Active Publication Date: 2013-10-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Embodiments of the present invention provide a method for encoding and decoding frame field information, an encoder, a decoder, electronic products, a codec device, and a video playback device, so as to solve the existing problem of encoding repeated fields and increasing the encoding bit overhead. The problem

Method used

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  • Encoding method and decoding method of frame field information, encoder and decoder
  • Encoding method and decoding method of frame field information, encoder and decoder
  • Encoding method and decoding method of frame field information, encoder and decoder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] The VUI code stream organization method used in this embodiment is the same as the HEVC CD method.

[0100] The field identification SEI information stream organization method used in this embodiment is as shown in Table 1:

[0101] Table 1 Field Identification SEI Information Code Stream Organization Method 1

[0102] field_indication(payloadSize){

Descriptor

sequence_type_flag

u(1)

progressive_source_flag

u(1)

if(sequence_type_flag){

bottom_field_flag

u(1)

duplicate_flag

u(1)

field_used_for_pull_down_flag

u(1)

}else{

field_output_flag

u(1)

top_field_first_flag

u(1)

frame_used_for_pull_down_flag

u(1)

}

reserved_zero_3bits / *equal to 0* /

u(3)

}

[0103] In the above table 1:

[0104] The semantics and corresponding operations of sequence_type_flag and progressive_source_flag are exactly the s...

Embodiment 2

[0201] The VUI code stream organization method used in this embodiment is the same as the HEVC CD method.

[0202] The field identification SEI information stream organization method used in this embodiment is as shown in Table 3:

[0203] Table 3 Field Identification SEI Information Code Stream Organization Method 2

[0204] field_indication(payloadSize){

Descriptor

sequence_type_flag

u(1)

progressive_source_flag

u(1)

if(sequence_type_flag){

bottom_field_flag

u(1)

duplicate_flag

u(1)

if(!duplicate_flag){

field_used_for_pull_down_flag

u(1)

if(field_used_for_pull_down_flag)

order_to_place_duplicate

u(3)

}

}else{

field_output_flag

u(1)

if(field_output_flag){

top_field_first_flag

u(1)

frame_used_for_pull_down_flag

u(1)

if(frame_used_for_pull_down flag){

duplicate_top_flag

...

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Abstract

An encoding method of frame field information. The method comprises: an encoder receiving a video image and auxiliary information to be encoded; and the encoder encoding the video image, according to field identification information code stream organization method and the auxiliary information, encoding field identification information used in the video image and outputting a code stream comprising the field identification information. For the video image required to be played repeatedly, the encoder uses the field identification information to encode it as a repeat play mode.

Description

technical field [0001] The present invention relates to video compression encoding technology, in particular to an encoding method and decoding method of frame field information, an encoder, a decoder, an electronic product, an encoding and decoding device and a video playing device. Background technique [0002] To broadcast vintage film movies on digital broadcast systems, the image frames of the original film movies are usually first scanned and digitized, then encoded and transmitted. The frame rate of old-fashioned film movies is 24 frames per second, the field frequency of the National Television System Committee (NTSC) system is approximately 60 fields per second, and the Phase Alternation Line (PAL) system The field frequency of the TV system can be approximately considered to be 50 fields / second. Therefore, it is necessary to "break down" digitized old-fashioned film frames into fields, and adjust the field rate to suit different broadcast television systems. [0...

Claims

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Application Information

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IPC IPC(8): H04N7/26
CPCH04N7/24H04N19/112H04N19/46
Inventor 李明吴平
Owner ZTE CORP
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