CN107071417A - A kind of intra-frame prediction method for Video coding - Google Patents

A kind of intra-frame prediction method for Video coding Download PDF

Info

Publication number
CN107071417A
CN107071417A CN201710228419.6A CN201710228419A CN107071417A CN 107071417 A CN107071417 A CN 107071417A CN 201710228419 A CN201710228419 A CN 201710228419A CN 107071417 A CN107071417 A CN 107071417A
Authority
CN
China
Prior art keywords
pixel
block
predicted
equation
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710228419.6A
Other languages
Chinese (zh)
Other versions
CN107071417B (en
Inventor
朱策
毛敏
刘宇洋
宋世昶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Electronic Science and Technology of China
Original Assignee
University of Electronic Science and Technology of China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Electronic Science and Technology of China filed Critical University of Electronic Science and Technology of China
Priority to CN201710228419.6A priority Critical patent/CN107071417B/en
Publication of CN107071417A publication Critical patent/CN107071417A/en
Application granted granted Critical
Publication of CN107071417B publication Critical patent/CN107071417B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The invention belongs to technical field of video coding, a kind of intra-frame prediction method for Video coding is particularly related to.The method of the present invention includes：Predicted value is generated using the unfiltered reference pixel generation filtered reference pixel of multiple lines and multiple rows, using filtered reference pixel, smoothly generate new predicted value using the unfiltered reference pixel of multiple lines and multiple rows and predicted value.Beneficial effects of the present invention are, relatively existing PDPC technologies, the present invention can more efficiently, robustly carry out intraframe coding.

Description

Intra-frame prediction method for video coding
Technical Field
The invention belongs to the technical field of video coding, and particularly relates to an intra-frame prediction method for video coding.
Background
In recent years, colorful video contents are generated every moment, and the number of videos is exponentially increased explosively. According to YouTube statistics, the video volume uploaded by a user every minute reaches more than 300 hours; according to Bell laboratory prediction, the audio and video data flow accounts for 80% of the newly added flow in 2020, and various indications show that the video data becomes big data in big data, and people are in a multimedia era surrounded by massive audio and video data. In order to save storage space and reduce transmission bandwidth occupancy, video compression coding processing is generally required.
Intra-frame coding is a coding scheme in video coding standards. The reference pixel of the traditional intra-frame coding is obtained by selecting a prediction angle mode to perform linear prediction by only utilizing one row and one column of pixels of a reconstruction block closest to a current block to be coded.
This prediction method using a single row and a single column has proved to be very effective for small-sized coding blocks, but the method does not work well for large-sized coding blocks, and the prediction pixel filtering strategy required by the encoder varies with the position of the current block to be coded. For example, a lower intensity smoothing is required relative to pixels far above and to the left of the block to be encoded. Furthermore, even for the same size block, the encoder needs different filtering strategies due to the different encoded block content.
In the past, researchers have proposed using recursive filters to smooth the prediction values, and experiments have shown that coding efficiency can be improved.
W. -J.Han and J.Min ("Improved video compression efficiency prediction and correction extension of coding tools," IEEE Trans.circuits Syst.video technology, vol.20, No.12, pp.1709-1720, Dec.2010 "), and Y.Chen and J.Han, (" A iterative amplification to intra prediction encoding, "in Proc.IEEE int.Conf.Acoustics Specification Signal Process, Vancouver, BC, Canada, May 2013, pp.1734-8.) are methods of applying a set of recursive filters to smooth predicted values. Although the recursive method can smooth the predicted pixels to some extent, and the experimental results show that the recursive filter can improve the coding performance, the recursive filter is not suitable for parallel computation and does not consider the change of the signal as a whole.
Disclosure of Invention
In order to better utilize the internal texture features of a block to be coded, the invention provides an Enhanced Position dependent intra prediction combination (EPDCPC) based on a Position dependent prediction combination of multiple rows and multiple columns.
The technical scheme of the invention is as follows:
a method of intra prediction for video coding, comprising the steps of:
s1, generating a filtering reference pixel:
the filtered reference pixel S is obtained by the following equation 1:
S＝Ak·R+(E-Ak)·(Hkr) (equation 1)
In formula 1, HkThe filter parameter under the size of the coding block, R is selected multiple rows and multiple columns of reference pixels of the current block to be coded, and is a convolution operator, AkA weighting factor that is the output of the filter;
s2, calculating the prediction pixel value of the current coding block:
setting the encoding block size to M × N, and predicting the pixel P of each pixel (x, y) in the encoding blockx,yPredicting, wherein N is more than or equal to x and more than or equal to 1, and M is more than or equal to y and more than or equal to 1; suppose Sx,0And S0,yRespectively, a row of pixels and a column of pixels which are closest to the current block to be encoded in the filtered reference pixels S of the current block to be encoded, and the method for generating the predicted pixel value includes:
in Planar (Planar) prediction mode:
will predict pixel Px,yDefined as the average of the predicted values in both the horizontal and vertical directions, the predicted pixel value is obtained by the following equations 2, 3 and 4:
in direct current component (DC) prediction mode:
for chrominance components and luminance components greater than 16x16, the predicted pixel value is obtained by the following equation 5:
other cases are obtained by the following equation 6:
in the angular mode:
for a given vertical angle-like mode M, the reference pixels needed by the vertical angle-like mode M are mapped into a form, denoted as Ref, according to the following equations 7 and 8:
calculating the position of the current pixel corresponding to the reference pixel in the middle, denoted as pos, as the following formula 9:
pos ═ 5 (y · offset [ M ]) > (equation 9)
Calculating a weighting factor w of the current pixel corresponding to the reference pixel, as shown in the following equation 10:
w ═ (y, offset [ M ]) &31 (equation 10)
The predicted pixel value of the current pixel is calculated by the following equation 11:
Px,y＝((32-w)·Ref[pos]+w·Ref[pos+1]+16)>>5 (formula 11)
Wherein, offset [ M ] is an angle conversion factor, Round (·) is a rounding operation function;
s3, generating a new predicted value according to the rows and columns of the unfiltered reference pixels and the predicted value in a smoothing way:
according to the predicted value P obtained in step S2x,yAnd obtaining a final predicted pixel value of the current block to be coded through the following formulas 12 to 16:
wherein,is a stored prediction parameter, d is set to 1 for a block of 16 × 16 and to 2 for a larger block, bx,yIs a normalization factor, as shown in equation 16 below:
are weighted weights depending on horizontal position and vertical position respectively,is a set of weighted weights for the top left corner position,depending on the convolution template for the horizontal position, the vertical position, the upper left corner position,is the round-down operator and is,>>left shift operator.
According to the general technical scheme, according to the prediction angle mode of a coding block, the size of the coding block and the pixel position, a plurality of rows and columns of unfiltered reference pixels are used for predicting a predicted value of the current coding block to be coded, and the obtained predicted value and the filtered (smoothed) rows and columns of unfiltered reference pixels are combined in a weighting mode to obtain a final predicted value. Efficient intra-coding is achieved.
The invention has the beneficial effects that: compared with the prior art, the invention can more efficiently and robustly carry out intra-frame coding.
Drawings
Fig. 1 is a schematic diagram of two rows and two columns of EPDPCs in the present invention, wherein (a) a block to be encoded currently and an unfiltered reference pixel are illustrated, and (b) a block to be encoded currently and a filtered reference pixel are illustrated;
fig. 2 is a diagram illustrating intra angular mode prediction directions, wherein each arrow represents a prediction direction.
Detailed Description
The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings and embodiments:
examples
This example is an EPDPC with two rows and two columns to verify the effectiveness of the method of the present invention.
The method of the embodiment comprises the following steps:
constructing a quasi-gaussian filter by using the formula (1), and filtering two rows and two columns of reference pixels Unfiltered refine 2 and refine 1 (fig. 1(a)) of the current block to be coded to generate (fig. 1(b)) Filtered reference pixels Filtered refine 1:
S＝Ak·R+(E-Ak)·(Hkr) (equation 1)
Step 2, according to the angle mode in fig. 2, calculating the Prediction pixel Prediction (P) of the pixel point (x, y) of the current coding block by using the Filtered reference pixel Filtered reference 1x,y)；
Step 3, generating FPrediction (FP) by using Unfiltered Refline2, Unfiltered Refline1 and predictionP (x, y) filteringx,y). Obtaining P by the method of step 2x,yThen, b is calculated according to the formula (16)x,y：
Then, the final predicted pixel value FP of the current block is calculated using equation (15)x,y：
The parameters in equation (15) can be calculated using equation (12), equation (13) and equation (14), where d is set to 1 for the block of 16 × 16 and 2 for the larger block, andis a set of convolution templates.
Table 3 shows the coding results obtained in the examples:
TABLE 3 coding results obtained in the example
Sequence Y U V
Traffic -0.1％ 0.0％ 0.0％
PeopleOnStreet -0.2％ -0.3％ -0.2％
Nebuta -0.2％ -0.4％ -0.2％
SteamLocomotive -0.2％ -0.8％ -0.1％
ParkScene -0.2％ -0.1％ -0.1％
Cactus -0.1％ -0.1％ -0.2％
BasketballPass -0.1％ -0.1％ -0.4％
BQSquare -0.1％ 0.1％ -0.1％
BlowingBubbles -0.1％ -0.2％ -0.1％
RaceHorses -0.1％ -0.2％ -0.1％
FourPeople -0.2％ -0.2％ -0.3％
Johnny -0.1％ -0.1％ -0.1％
KristenAndSara -0.1％ 0.0％ 0.0％
SlideShow -0.2％ -0.2％ -0.6％
(Average) Average -0.1％ -0.2％ -0.2％
As can be seen from the coding performance shown in table 3, the coding effects of the YUV three components are all improved.

Claims (1)

1. A method of intra prediction for video coding, comprising the steps of:
s1, generating a filtering reference pixel:
the filtered reference pixel S is obtained by the following equation 1:
S＝Ak·R+(E-Ak)·(Hkr) (equation 1)
In formula 1, HkThe filter parameter under the size of the coding block, R is selected multiple rows and multiple columns of reference pixels of the current block to be coded, and is a convolution operator, AkFor filteringWeighting factors of the filter outputs;
s2, calculating the prediction pixel value of the current coding block:
setting the encoding block size to M × N, and predicting the pixel P of each pixel (x, y) in the encoding blockx,yPredicting, wherein N is more than or equal to x and more than or equal to 1, and M is more than or equal to y and more than or equal to 1; suppose Sx,0And S0,yRespectively, a row of pixels and a column of pixels which are closest to the current block to be encoded in the filtered reference pixels S of the current block to be encoded, and the method for generating the predicted pixel value includes:
in the plane prediction mode:
will predict pixel Px,yDefined as the average of the predicted values in both the horizontal and vertical directions, the predicted pixel value is obtained by the following equations 2, 3 and 4:
in the direct current component prediction mode:
for chrominance components and luminance components greater than 16x16, the predicted pixel value is obtained by the following equation 5:
other cases are obtained by the following equation 6:
in the angular mode:
for a given vertical angle-like mode M, the reference pixels needed by the vertical angle-like mode M are mapped into a form, denoted as Ref, according to the following equations 7 and 8:
calculating the position of the current pixel corresponding to the reference pixel in the middle, denoted as pos, as the following formula 9:
pos ═ 5 (y · offset [ M ]) > (equation 9)
Calculating a weighting factor w of the current pixel corresponding to the reference pixel, as shown in the following equation 10:
w ═ (y, offset [ M ]) &31 (equation 10)
The predicted pixel value of the current pixel is calculated by the following equation 11:
Px,y＝((32-w)·Ref[pos]+w·Ref[pos+1]+16)>>5 (formula 11)
Wherein, offset [ M ] is an angle conversion factor, Round (·) is a rounding operation function;
s3, generating a new predicted value according to the rows and columns of the unfiltered reference pixels and the predicted value in a smoothing way:
according to the predicted value P obtained in step S2x,yAnd obtaining a final predicted pixel value of the current block to be coded through the following formulas 12 to 16:
wherein,is a stored prediction parameter, d is set to 1 for a block of 16 × 16 and to 2 for a larger block, bx,yIs a normalization factor, as shown in equation 16 below:
are weighted weights depending on horizontal position and vertical position respectively,is a set of weighted weights for the top left corner position,depending on the convolution template for the horizontal position, the vertical position, the upper left corner position,is the round-down operator and is,>>left shift operator.
CN201710228419.6A 2017-04-10 2017-04-10 A kind of intra-frame prediction method for Video coding Active CN107071417B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710228419.6A CN107071417B (en) 2017-04-10 2017-04-10 A kind of intra-frame prediction method for Video coding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710228419.6A CN107071417B (en) 2017-04-10 2017-04-10 A kind of intra-frame prediction method for Video coding

Publications (2)

Publication Number Publication Date
CN107071417A true CN107071417A (en) 2017-08-18
CN107071417B CN107071417B (en) 2019-07-02

Family

ID=59601723

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710228419.6A Active CN107071417B (en) 2017-04-10 2017-04-10 A kind of intra-frame prediction method for Video coding

Country Status (1)

Country Link
CN (1) CN107071417B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019047883A1 (en) * 2017-09-08 2019-03-14 Fg Innovation Ip Company Limited Device and method for coding video data based on multiple reference lines
CN110858281A (en) * 2018-08-22 2020-03-03 浙江宇视科技有限公司 Image processing method, image processing device, electronic eye and storage medium
CN111787334A (en) * 2020-05-29 2020-10-16 浙江大华技术股份有限公司 Filtering method, filter and device for intra-frame prediction
WO2020258010A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Image encoding method, image decoding method, encoder, decoder and storage medium
WO2020258020A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Information processing method and device, apparatus, and storage medium
WO2020258001A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Luminance component prediction method, encoder, decoder and storage medium
US10965941B2 (en) 2017-10-09 2021-03-30 Qualcomm Incorporated Position-dependent prediction combinations in video coding
CN112889286A (en) * 2018-12-21 2021-06-01 华为技术有限公司 Method and apparatus for mode-dependent and size-dependent block-level limiting of position-dependent prediction combinations
CN112889281A (en) * 2018-11-26 2021-06-01 华为技术有限公司 Method for intra prediction of blocks in an image
CN114363632A (en) * 2021-12-10 2022-04-15 浙江大华技术股份有限公司 Intra-frame prediction method, encoding and decoding method, encoder and decoder, system, electronic device and storage medium
RU2790323C2 (en) * 2019-06-25 2023-02-16 Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. Image encoding method, image decoding method, encoder, decoder and data carrier
CN116567207A (en) * 2018-12-29 2023-08-08 华为技术有限公司 Method and apparatus for intra prediction

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102934446A (en) * 2010-04-05 2013-02-13 三星电子株式会社 Determining intra prediction mode of image coding unit and image decoding unit
CN103747250A (en) * 2013-12-28 2014-04-23 华中科技大学 Method for 4*4 sub-macroblock parallel intraframe prediction in H.264/AVC
CN105516728A (en) * 2015-12-15 2016-04-20 华中科技大学 Parallel intra-frame prediction method of 8*8 sub-macroblocks in H.265/HEVC

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102934446A (en) * 2010-04-05 2013-02-13 三星电子株式会社 Determining intra prediction mode of image coding unit and image decoding unit
CN103747250A (en) * 2013-12-28 2014-04-23 华中科技大学 Method for 4*4 sub-macroblock parallel intraframe prediction in H.264/AVC
CN105516728A (en) * 2015-12-15 2016-04-20 华中科技大学 Parallel intra-frame prediction method of 8*8 sub-macroblocks in H.265/HEVC

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
徐宁: "H.264编码器预测算法优化研究", 《中国优秀硕士论文库》 *
罗敏珂，周益民，钟敏，朱策: "AVS2视频编码码率控制算法", 《系统工程与电子技术》 *

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019047883A1 (en) * 2017-09-08 2019-03-14 Fg Innovation Ip Company Limited Device and method for coding video data based on multiple reference lines
US10856010B2 (en) 2017-09-08 2020-12-01 FG Innovation Company Limited Device and method for coding video data based on multiple reference lines
US10965941B2 (en) 2017-10-09 2021-03-30 Qualcomm Incorporated Position-dependent prediction combinations in video coding
CN110858281A (en) * 2018-08-22 2020-03-03 浙江宇视科技有限公司 Image processing method, image processing device, electronic eye and storage medium
CN110858281B (en) * 2018-08-22 2022-10-04 浙江宇视科技有限公司 Image processing method, image processing device, electronic eye and storage medium
CN112889281A (en) * 2018-11-26 2021-06-01 华为技术有限公司 Method for intra prediction of blocks in an image
US11553174B2 (en) 2018-11-26 2023-01-10 Huawei Technologies Co., Ltd. Method of intra predicting a block of a picture
CN112889286A (en) * 2018-12-21 2021-06-01 华为技术有限公司 Method and apparatus for mode-dependent and size-dependent block-level limiting of position-dependent prediction combinations
US12108077B2 (en) 2018-12-21 2024-10-01 Huawei Technologies Co., Ltd. Method and apparatus of mode- and size-dependent block-level restrictions for position dependent prediction combination
CN112889286B (en) * 2018-12-21 2022-04-19 华为技术有限公司 Method and apparatus for mode-dependent and size-dependent block-level limiting of position-dependent prediction combinations
CN116567207A (en) * 2018-12-29 2023-08-08 华为技术有限公司 Method and apparatus for intra prediction
CN116567207B (en) * 2018-12-29 2024-02-13 华为技术有限公司 Method and apparatus for intra prediction
US12120315B2 (en) 2018-12-29 2024-10-15 Huawei Technologies Co., Ltd. Method and apparatus for intra prediction
US11146798B2 (en) 2019-06-25 2021-10-12 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Picture encoding method, picture decoding method, encoder, decoder and storage medium
RU2790323C2 (en) * 2019-06-25 2023-02-16 Гуандун Оппо Мобайл Телекоммьюникейшнс Корп., Лтд. Image encoding method, image decoding method, encoder, decoder and data carrier
WO2020258001A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Luminance component prediction method, encoder, decoder and storage medium
US11778202B2 (en) 2019-06-25 2023-10-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information processing method and device, apparatus, and storage medium
WO2020258020A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Information processing method and device, apparatus, and storage medium
WO2020258010A1 (en) * 2019-06-25 2020-12-30 Oppo广东移动通信有限公司 Image encoding method, image decoding method, encoder, decoder and storage medium
CN111787334A (en) * 2020-05-29 2020-10-16 浙江大华技术股份有限公司 Filtering method, filter and device for intra-frame prediction
CN114363632A (en) * 2021-12-10 2022-04-15 浙江大华技术股份有限公司 Intra-frame prediction method, encoding and decoding method, encoder and decoder, system, electronic device and storage medium

Also Published As

Publication number Publication date
CN107071417B (en) 2019-07-02

Similar Documents

Publication Publication Date Title
CN107071417B (en) A kind of intra-frame prediction method for Video coding
CN105025293B (en) Method and apparatus to Video coding and to the decoded method and apparatus of video
CN108012157B (en) Method for constructing convolutional neural network for video coding fractional pixel interpolation
CN103430545B (en) Context adaptive motion compensated filtering for efficient video coding
CN103765901B (en) Method and apparatus for carrying out image coding and decoding using infra-frame prediction
CN106170093B (en) Intra-frame prediction performance improving coding method
CN103621079B (en) Intra-prediction method, and encoder and decoder using same
CN103152577B (en) Method and apparatus to Video coding and the method and apparatus to video decode
CN108712648B (en) Rapid intra-frame coding method for depth video
CN102740077B (en) H.264/AVC standard-based intra-frame prediction mode selection method
CN103248895B (en) A kind of quick mode method of estimation for HEVC intraframe coding
CN106303521B (en) A kind of HEVC Rate-distortion optimization method based on sensitivity of awareness
CN102484719A (en) Method and apparatus for encoding video, and method and apparatus for decoding video
CN102948146A (en) Video encoding method and video encoding apparatus and video decoding method and video decoding apparatus, which perform deblocking filtering based on tree-structure encoding units
CN106878729A (en) Adaptive loop filter method and apparatus based on subregion basis
CN104602011A (en) Image decoding apparatus
CN104471940A (en) Method and apparatus of simplified luma-based chroma intra prediction
CN105898332B (en) For the fast deep figure frame mode decision method of 3D-HEVC coding standards
TWI833073B (en) Coding using intra-prediction
CN107864380A (en) 3D HEVC fast intra-mode prediction decision-making techniques based on DCT
CN110677654B (en) Quantization parameter cascade method of high-efficiency video coding standard low-delay coding structure
CN111586405B (en) Prediction mode rapid selection method based on ALF filtering in multifunctional video coding
CN104702959B (en) A kind of intra-frame prediction method and system of Video coding
CN108777794A (en) The coding method of image and device, storage medium, electronic device
CN100502511C (en) Method for organizing interpolation image memory for fractional pixel precision predication

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant