CN101631242A - Video weighted prediction system and coding and decoding method thereof - Google Patents
Video weighted prediction system and coding and decoding method thereof Download PDFInfo
- Publication number
- CN101631242A CN101631242A CN 200910055606 CN200910055606A CN101631242A CN 101631242 A CN101631242 A CN 101631242A CN 200910055606 CN200910055606 CN 200910055606 CN 200910055606 A CN200910055606 A CN 200910055606A CN 101631242 A CN101631242 A CN 101631242A
- Authority
- CN
- China
- Prior art keywords
- parameter
- weight estimation
- module
- standard
- look
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a video weighted prediction system and a coding and decoding method thereof based on the H.264 standard and the AVS standard in the technical field of image processing, comprising an arithmetic module, a control module, a parameter storage module and a lookup table, wherein, the arithmetic module is connected with the control module so as to transmit a weighted prediction parameter, the control module is respectively connected with the arithmetic module, the parameter storage module and the lookup table so as to transmit the weighted prediction parameter and a control instruction, and the arithmetic module receives a weighted prediction request and outputs a weighted prediction result. The invention uses a set of weighted prediction arithmetic circuit, and input data for forward weighted prediction and rearward weighted prediction does not need to be generated simultaneously, thereby meeting the requirement on speed, saving hardware resources and efficiently accomplishing the H.264 standard and the AVS standard weighted prediction.
Description
Technical field
What the present invention relates to is a kind of system and processing method thereof of technical field of image processing, specifically is a kind of based on the H.264 video weighted prediction system and the coding-decoding method thereof of standard and AVS standard.
Background technology
H.264 standard is the high compression digital video coding-coding device standard that is proposed by the joint video team (JVT, Joint Video Team) that ITU-T video coding expert group (VCEG) and ISO/IEC dynamic image expert group (MPEG) constitute jointly.H.264 the advantage of standard maximum is to have very high data compression ratio, and under the condition of equal picture quality, H.264 the compression ratio of standard is more than 2 times of MPEG-2, is 1.5～2 times of MPEG-4.It will be further appreciated that H.264 standard also has the image of high-quality smoothness when having high compression ratio.Because its good performance, it has obtained the extensive support of industry at present.The AVS standard is the abbreviation of " information technology advanced audio/video coding " series standard, and the AVS standard comprises support standards such as four main technical standards such as system, video, audio frequency, digital copyright management and uniformity test.The video section of this technology is the State Standard of the People's Republic of China on February 22nd, 2006 by promulgation.
H.264 standard has similar technical characterstic with the AVS standard, and two standards have all adopted weight estimation after interpolation.Weight estimation is a kind of method of revising the motion compensated prediction data sample in the macro block of P or B band, it can controlled motion compensation prediction process in the relative distribution of reference frame.H.264 standard has the pattern of two kinds of weight estimations: explicit (explicit) and implicit (implicit expression).The explicit weighting prediction is by transmitting to determine weighted factor at encoder and slice header.The implicit expression weight estimation is then determined weighted factor according to the relative timing position of reference picture.If reference picture near present image, uses bigger weight coefficient on sequential; If reference picture away from present image, uses less weight coefficient on sequential.The AVS standard has only a kind of pattern of weight estimation, is similar to H.264 explicit weighting prediction in the standard.
Weight estimation is divided into various modes, and every kind of pattern all has corresponding reference picture weight and reference picture skew to each pixel.If for the macro block of B band, then also to be divided into forward prediction, back forecast and bi-directional predicted.Therefore, data volume in computational process and operand all are very large.Therefore, be necessary to seek a kind of simple calculations circuit and realize weight estimation, thereby reach the purpose of saving resource.
Find that through retrieval people such as Ren Xiaohui have proposed a kind of framework of weight estimation in " hardware of interpolation and weight estimation is realized in the Video Decoder " (" modern electronic technology " 2006 the 18th phases) to the prior art file.In this framework,, reached the purpose of saving hardware resource by to the multiplexing of H.264 standard and AVS standard weight estimation module and the working method that adopts flowing water.But this structure has adopted the hardware resource of two cover weight estimations simultaneously in order to carry out two-way weight estimation, has so just increased circuit area greatly.And if only need to carry out under the situation of forward prediction or back forecast, the service efficiency of circuit only is about 50%.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of video weighted prediction system and coding-decoding method thereof are provided, can finish the H.264 weight estimation of standard and AVS standard fast.
The present invention is achieved by the following technical solutions:
The present invention relates to video weighted prediction system comprises: computing module, control module, parameter memory module and look-up table, wherein: computing module is connected with control module with transmission weight estimation parameter, control module is connected with computing module, parameter memory module and look-up table respectively with transmission weight estimation parameter and control command, computing module and control module are connected with motion compensating module with the interpolating module of system outside respectively, computing module is in order to receive the weight estimation request and to export the weight estimation result, and control module is in order to transfer control signal.
Described weight estimation parameter comprises: weighting parameter, offset parameter, code stream parameter.
Described computing module comprises: 4 basic calculating unit and 1 shift register, can be simultaneously to carrying out the 32bit computing with 4 pixels in the delegation in the macro block, wherein: the basic calculating unit is connected with transmission weight estimation request and receives the weight estimation parameter with control module, and shift register is connected with control module to receive control command and to transmit the weight estimation result.
Described basic calculating unit calculates the weight estimation computing for monochrome information, 8*8 piece is divided into the sub-piece of 2 8*4; For the weight estimation computing of chrominance information, according to the sample format of 4:2:0, its Pixel Information is half of brightness, therefore can be divided into the sub-piece of 2 4*4.
Described shift register is 8 grades of shift registers, this shift register is deposited 8 all after dates to the result of forward direction weight estimation and is exported to basic processing unit or the result of forward direction weight estimation is deposited 4 all after dates export to basic processing unit when bi-directional predicted.
Described look-up table comprises: first random asccess memory in parallel with control module respectively and second random asccess memory, be used for storing the weighting parameter and the offset parameter of weight estimation parameter, or the relative position of reference picture is poor.
The capacity of described first random asccess memory is 2048 byte, and bit wide 8bit is used for inquiring about H.264 Y look and Cb look, the field mode of implicit predictive mode or the field mode of AVS standard of the explicit predictive mode of standard; The capacity of described second random asccess memory is 256 byte, and bit wide 8bit is used to inquire about H.264 Cr look, the frame pattern of implicit pattern or the frame pattern of AVS standard of the explicit pattern of standard.
Described parameter memory module comprises some registers, is mainly used in the code stream parameter in stored reference index information, code stream information and the weight estimation parameter.
Described reference index information comprises: 4 brightness reference index information and 4 chroma reference index informations;
Described code stream information comprises: the direction mode of code stream kind, macro block kind and weight estimation, and wherein: the code stream kind is meant the code stream of standard H.264 or AVS standard, and the macro block kind is meant: P macro block or B macro block; The direction mode of weight estimation is meant: forward prediction, back forecast or bi-predictive mode.
Described control module comprises: first state machine and second state machine, wherein: first state machine connects parameter poke module and look-up table respectively and is responsible for reading parameter from parameter memory module and look-up table, second state machine is connected with computing module and is responsible for control and calculation unit work, and described first state machine and second state machine adopt the working method of flowing water.
The present invention relates to the coding-decoding method of above-mentioned video weighted prediction system, may further comprise the steps:
The first step, control module read required reference index information and code stream information and are kept in the register in a macro block;
Read in the described macro block and be meant: the sub-piece that the macro block of a 16*16 is divided into 4 8*8, the sub-piece of each 8*8 has 2 reference index information, 2 reference keys are respectively applied for forward prediction and back forecast, in a macro block, read 4 brightness reference index information earlier, read 4 chroma reference index informations again, order is for from left to right, from top to bottom;
Described P macro block carries out forward prediction; Described B macro block carries out forward prediction, back forecast or bi-directional predicted;
Second step, control module are judged code stream kind and predictive mode according to code stream information, make up with reference key to obtain the look-up table address and look-up table is searched, and obtain weighting parameter and offset parameter, or the relative position of reference picture are poor.
Describedly judge that according to code stream information code stream kind and predictive mode are meant: when code stream kind during for standard H.264, predictive mode is divided into explicit predictive mode and implicit predictive mode, wherein: H.264 the explicit predictive mode of standard and the AVS standard weight estimation parameter that obtains of tabling look-up is weighting parameter and offset parameter, and H.264 the table look-up weight estimation parameter that obtains of the implicit predictive mode of standard is that the relative position of reference picture is poor.
The relative position difference of described weighting parameter, offset parameter and reference picture is 8 bit numbers;
The 3rd step, the basic calculating unit in the computing module according to criteria for classification and weight estimation general formula carry out forward prediction or back forecast or bi-directional predicted in the calculating of forward prediction:
predPart
c＝clip1(((predPart0
c*w
0+predPart1
c*w
1+m)＞＞n)+o)，
Wherein: predPart0
cRepresent the Pixel Information of the forward prediction of 8 bits, predPart1
cRepresent the Pixel Information of the back forecast of 8 bits, predPart
cBe the result of the weight estimation of 8 bits, operator "＞＞" expression right shift operation, the expression formula of clip1 (x) function is as follows:
W0, w1, m, n and o are the computing parameter, are configured by control module, and the concrete value under different mode is as follows:
Described criteria for classification is meant:
When computing module when H.264 standard code stream calculates:
1) if carry out forward prediction or back forecast, then computing module directly with the result of calculation output of weight estimation, has been finished the weight estimation of this pixel, and has been skipped following steps, carries out the calculating of next Pixel Information;
2) if carry out the bidirectional weighting prediction and calculation, also need to carry out the back-weight prediction, then computing module is stored in the result of calculation of current weight estimation in the shift register, waits for the parameter information of back forecast;
When computing module calculated at AVS standard code stream: weight estimation had only forward prediction or back forecast, so computing module is directly exported the result of calculation of weight estimation, finish the weight estimation of this pixel, and skipped following steps, carried out the calculating of next Pixel Information.
The 4th step, the back-weight that carries out in the bidirectional weighting prediction predict that control module reconfigures the value of w0, w1, m, n and o, and the basic calculating unit in the computing module calculates according to criteria for classification and weight estimation general formula then.Thus, obtain the final result and the output of bidirectional weighting prediction, finished the weight estimation of this pixel, carry out the calculating of next Pixel Information then.
The present invention uses the computing circuit of a cover weight estimation, just can finish the bidirectional weighting prediction of many standards.Simultaneously, owing to adopted the working method of flowing water, can satisfy the rate request of system.Simultaneously, the present invention does not require the input data that produce forward direction weight estimation and back-weight prediction simultaneously, can reduce the hardware resource of other modules indirectly.Therefore, the present invention can meet the demands on speed, has saved hardware resource simultaneously again.
Description of drawings
Fig. 1 is the weight estimation structure drawing of device.
Fig. 2 is 8 * 8 processing order figure.
Fig. 3 is the arithmetic element structure chart.
Embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment relates to weighted prediction system and comprises: computing module, control module, parameter memory module and look-up table, wherein: computing module is connected with control module with transmission weight estimation parameter, control module is connected with computing module, parameter memory module and look-up table respectively with transmission weight estimation parameter and control command, computing module and control module are connected with motion compensating module with the interpolating module of system outside respectively, computing module is in order to receive the weight estimation request and to export the weight estimation result, and control module is in order to transfer control signal.
Described computing module comprises: 4 basic calculating unit and 1 shift register, can be simultaneously to carrying out the 32bit computing with 4 pixels in the delegation in the macro block, wherein: the basic calculating unit is connected with control module to transmit the input information and the parameter information of weight estimation with outside input module, and shift register is connected with control module to transmit the output information and the control information of weight estimation with outside output module.
Described basic calculating unit calculates the weight estimation computing for monochrome information, 8*8 piece is divided into the sub-piece of 2 8*4; For the weight estimation computing of chrominance information, according to the sample format of 4:2:0, its Pixel Information is half of brightness, therefore can be divided into the sub-piece of 2 4*4.
Described shift register is 8 grades of shift registers, and this shift register is deposited 8 all after dates to the result of forward direction weight estimation and exported to basic processing unit or the result of forward direction weight estimation is deposited 4 all after dates export to basic processing unit.
Described look-up table comprises: first random asccess memory and second random asccess memory, be used for storing the weighting parameter and the offset parameter of weight estimation parameter, or the relative position of reference picture is poor, wherein:
The capacity of described first random asccess memory is 2048 byte, and bit wide 8bit is used for inquiring about H.264 Y look and Cb look, the field mode of implicit predictive mode or the field mode of AVS standard of the explicit predictive mode of standard;
The capacity of described second random asccess memory is 256 byte, and bit wide 8bit is used to inquire about H.264 Cr look, the frame pattern of implicit pattern or the frame pattern of AVS standard of the explicit pattern of standard.
Described parameter memory module comprises some registers, is mainly used in the code stream parameter in stored reference index information, code stream information and the weight estimation parameter.
Described reference index information comprises: 4 brightness reference index information and 4 chroma reference index informations;
Described code stream information comprises: the direction mode of code stream kind, macro block kind and weight estimation, and wherein: the code stream kind is meant the code stream of standard H.264 or AVS standard, and the macro block kind is meant: P macro block or B macro block; The direction mode of weight estimation is meant: forward prediction, back forecast or bi-predictive mode.
Described control module comprises two state machines, and first state machine is responsible for reading parameter from parameter memory module and look-up table, and second state machine is responsible for control and calculation unit work, is flowing water work between these two state machines.
As shown in Figure 2, above-mentioned prognoses system is divided into the sub-piece of 4 8*8 with the macro block of a 16*16, and each sub-piece all has 2 reference key, is respectively that forward direction reference key and back are to reference key.For the P macro block, only carry out forward prediction; And, may only carry out forward prediction or back forecast for the B macro block, also may carry out bi-directional predicted.The appearance of macro block neutron piece is in proper order for from left to right, from top to bottom.
The first step, control module read required reference index information and code stream information and are kept in the register in a macro block;
Read in the described macro block and be meant: the sub-piece that the macro block of a 16*16 is divided into 4 8*8, the sub-piece of each 8*8 has 2 reference index information, 2 reference keys are respectively applied for forward prediction and back forecast, in a macro block, read 4 brightness reference index information earlier, read 4 chroma reference index informations again, order is for from left to right, from top to bottom;
Described P macro block carries out forward prediction; Described B macro block carries out forward prediction, back forecast or bi-directional predicted;
Second step, control module are judged code stream kind and predictive mode according to code stream information, make up with reference key to obtain the look-up table address and look-up table is searched, and obtain weighting parameter and offset parameter, or the relative position of reference picture are poor.
Describedly judge that according to code stream information code stream kind and predictive mode are meant:
When code stream kind during for standard H.264, predictive mode is divided into explicit predictive mode and implicit predictive mode; H.264 the explicit predictive mode of standard and the AVS standard weight estimation parameter that obtains of tabling look-up is weighting parameter and offset parameter, and H.264 the table look-up weight estimation parameter that obtains of the implicit predictive mode of standard is that the relative position of reference picture is poor.
The relative position difference of described weighting parameter, offset parameter and reference picture is 8 bit numbers;
As shown in Figure 3, the 3rd step for the basic calculating unit in the computing module according to criteria for classification and weight estimation general formula carry out forward prediction or back forecast or bi-directional predicted in the calculating of forward prediction:
predPart
c＝clip1(((predPart0
c*w
0+predPart1
c*w
1+m)＞＞n)+o)，
Wherein: predPart0
cRepresent the Pixel Information of the forward prediction of 8 bits, predPart1
cRepresent the Pixel Information of the back forecast of 8 bits, predPart
cBe the result of the weight estimation of 8 bits, operator "＞＞" expression right shift operation, the expression formula of clip1 (x) function is as follows:
W0, w1, m, n and o are the computing parameter, are configured by control module, and the concrete value under different mode is as follows:
Described criteria for classification is meant:
When computing module when H.264 standard code stream calculates:
1) if carry out forward prediction or back forecast, then computing module directly with the result of calculation output of weight estimation, has been finished the weight estimation of this pixel, and has been skipped following steps, carries out the calculating of next Pixel Information;
2) if carry out the bidirectional weighting prediction and calculation, also need to carry out the back-weight prediction, then computing module is stored in the result of calculation of current weight estimation in the shift register, waits for the parameter information of back forecast;
When computing module calculated at AVS standard code stream: weight estimation had only forward prediction or back forecast, so computing module is directly exported the result of calculation of weight estimation, finish the weight estimation of this pixel, and skipped following steps, carried out the calculating of next Pixel Information.
The 4th step, the back-weight that carries out in the bidirectional weighting prediction predict that control module reconfigures the value of w0, w1, o, m and n, and the basic calculating unit in the computing module calculates according to criteria for classification and weight estimation general formula then.Thus, obtain the final result and the output of bidirectional weighting prediction, finished the weight estimation of this pixel, carry out the calculating of next Pixel Information then.
Adopting present embodiment to handle the required maximum duration of 8*8 piece is 48 cycles, can satisfy 1080P, the requirement of the real-time weight estimation of 30fps, and compare with existing design, multiplier saving rate can reach 50%.
Claims (10)
1, a kind of video weighted prediction system, it is characterized in that, comprise: computing module, control module, parameter memory module and look-up table, wherein: computing module is connected with control module with transmission weight estimation parameter, control module respectively with computing module, parameter memory module is connected with look-up table with transmission weight estimation parameter and control command, computing module and control module are connected with motion compensating module with the interpolating module of system outside respectively, computing module is in order to receive the weight estimation request and to export the weight estimation result, control module is in order to transfer control signal, and described weight estimation parameter comprises: weighting parameter, offset parameter, the code stream parameter.
2, video weighted prediction system according to claim 1, it is characterized in that, described computing module comprises: 4 basic calculating unit and 1 shift register, can be simultaneously to carrying out the 32bit computing with 4 pixels in the delegation in the macro block, wherein: the basic calculating unit is connected with transmission weight estimation request and receives the weight estimation parameter with control module, and shift register is connected with control module to receive control command and to export the weight estimation result.
3, video weighted prediction system according to claim 2 is characterized in that, described basic calculating unit calculates the weight estimation computing for monochrome information, 8*8 piece is divided into the sub-piece of 2 8*4; For the weight estimation computing of chrominance information, according to the sample format of 4:2:0, its Pixel Information is half of brightness, therefore can be divided into the sub-piece of 2 4*4.
4, video weighted prediction system according to claim 1, it is characterized in that, described look-up table comprises: first random asccess memory in parallel with control module respectively and second random asccess memory, wherein: the capacity of first random asccess memory is 2048byte, bit wide 8bit is used for inquiring about H.264 Y look and Cb look, the field mode of implicit predictive mode or the field mode of AVS standard of the explicit predictive mode of standard; The capacity of second random asccess memory is 256byte, and bit wide 8bit is used to inquire about H.264 Cr look, the frame pattern of implicit pattern or the frame pattern of AVS standard of the explicit pattern of standard.
5, video weighted prediction system according to claim 1, it is characterized in that, described control module comprises: first state machine and second state machine, wherein: first state machine connects parameter poke module and look-up table respectively and is responsible for reading parameter from parameter memory module and look-up table, second state machine is connected with computing module and is responsible for control and calculation unit work, and described first state machine and second state machine adopt the working method of flowing water.
6, a kind of coding-decoding method of video weighted prediction system according to claim 1 is characterized in that, may further comprise the steps:
The first step, control module read required reference index information and code stream information and are kept in the register in a macro block;
Second step, control module are judged code stream kind and predictive mode according to code stream information, make up with reference key to obtain the look-up table address and look-up table is searched, and obtain weighting parameter and offset parameter, or the relative position of reference picture are poor;
The 3rd step, the basic calculating unit in the computing module according to criteria for classification and weight estimation general formula carry out forward prediction or back forecast or bi-directional predicted in the calculating of forward prediction:
predPart
c＝clip1(((predPart0
c*w
0+predPart1
c*w
1+m)＞＞n)+o)，
Wherein: predPart0
cRepresent the Pixel Information of the forward prediction of 8 bits, predPart1
cRepresent the Pixel Information of the back forecast of 8 bits, predPart
cBe the result of the weight estimation of 8 bits, w0, w1, m, n and o are the computing parameter, operator "＞＞" expression right shift operation, the expression formula of clip1 (x) function is as follows:
The 4th step, the back-weight that carries out in the bidirectional weighting prediction predict that control module reconfigures the value of w0, w1, o, m and n, and the basic calculating unit in the computing module calculates according to criteria for classification and weight estimation general formula then.Thus, obtain the final result and the output of bidirectional weighting prediction, finished the weight estimation of this pixel, carry out the calculating of next Pixel Information then.
7, the coding-decoding method of video weighted prediction system according to claim 6, it is characterized in that, read in the described macro block and be meant: the sub-piece that the macro block of a 16*16 is divided into 4 8*8, the sub-piece of each 8*8 has 2 reference index information, and 2 reference keys are respectively applied for forward prediction and back forecast, in a macro block, read 4 brightness reference index information earlier, read 4 chroma reference index informations again, order is for from left to right, from top to bottom.
8, the coding-decoding method of video weighted prediction system according to claim 6, it is characterized in that, describedly judge that according to code stream information code stream kind and predictive mode are meant: when code stream kind during for standard H.264, predictive mode is divided into explicit predictive mode and implicit predictive mode, wherein: H.264 the explicit predictive mode of standard and the AVS standard weight estimation parameter that obtains of tabling look-up is weighting parameter and offset parameter, and H.264 the table look-up weight estimation parameter that obtains of the implicit predictive mode of standard is that the relative position of reference picture is poor.
9, the coding-decoding method of video weighted prediction system according to claim 6 is characterized in that, described computing parameter w0, w1, m, n and the concrete value of o under different mode are as follows:
10, the coding-decoding method of video weighted prediction system according to claim 6 is characterized in that, described criteria for classification is meant:
In the 3rd when step, when computing module when H.264 standard code stream calculates:
1) if carry out forward prediction or back forecast, then computing module has been finished the weight estimation of this pixel directly with the result of calculation output of prediction, skips the step of back, carries out the calculating of next Pixel Information;
2) if carry out bi-directional predicted calculating, also need to carry out bi-directional predicted back-weight prediction, then computing module is stored in the result of calculation of current weight estimation in the shift register, waits for the parameter information of back forecast;
When computing module calculated at AVS standard code stream: weight estimation had only forward prediction or back forecast, so computing module is directly exported the result of calculation of weight estimation, finish the weight estimation of this pixel, and skipped later step, carried out the calculating of next Pixel Information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055606 CN101631242A (en) | 2009-07-30 | 2009-07-30 | Video weighted prediction system and coding and decoding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910055606 CN101631242A (en) | 2009-07-30 | 2009-07-30 | Video weighted prediction system and coding and decoding method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101631242A true CN101631242A (en) | 2010-01-20 |
Family
ID=41576153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910055606 Pending CN101631242A (en) | 2009-07-30 | 2009-07-30 | Video weighted prediction system and coding and decoding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101631242A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101909212A (en) * | 2010-08-05 | 2010-12-08 | 上海交通大学 | Multi-standard macroblock prediction system of reconfigurable multimedia SoC |
| CN103873872A (en) * | 2012-12-13 | 2014-06-18 | 联发科技（新加坡）私人有限公司 | Reference image management method and device |
| WO2017035831A1 (en) * | 2015-09-06 | 2017-03-09 | Mediatek Inc. | Adaptive inter prediction |
| CN106899849A (en) * | 2012-06-27 | 2017-06-27 | 株式会社东芝 | Coding method, coding/decoding method, encoding device and decoding device |
| CN112000549A (en) * | 2020-08-21 | 2020-11-27 | 北京浪潮数据技术有限公司 | Capacity analysis method of storage equipment and related device |
-
2009
- 2009-07-30 CN CN 200910055606 patent/CN101631242A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101909212A (en) * | 2010-08-05 | 2010-12-08 | 上海交通大学 | Multi-standard macroblock prediction system of reconfigurable multimedia SoC |
| CN101909212B (en) * | 2010-08-05 | 2012-08-22 | 上海交通大学 | Multi-standard macroblock prediction system of reconfigurable multimedia SoC |
| CN106899849A (en) * | 2012-06-27 | 2017-06-27 | 株式会社东芝 | Coding method, coding/decoding method, encoding device and decoding device |
| CN106899849B (en) * | 2012-06-27 | 2019-08-13 | 株式会社东芝 | A kind of electronic equipment and coding/decoding method |
| CN103873872A (en) * | 2012-12-13 | 2014-06-18 | 联发科技（新加坡）私人有限公司 | Reference image management method and device |
| WO2017035831A1 (en) * | 2015-09-06 | 2017-03-09 | Mediatek Inc. | Adaptive inter prediction |
| WO2017036417A1 (en) * | 2015-09-06 | 2017-03-09 | Mediatek Inc. | Method and apparatus of adaptive inter prediction in video coding |
| US10979707B2 (en) | 2015-09-06 | 2021-04-13 | Mediatek Inc. | Method and apparatus of adaptive inter prediction in video coding |
| CN112000549A (en) * | 2020-08-21 | 2020-11-27 | 北京浪潮数据技术有限公司 | Capacity analysis method of storage equipment and related device |
| CN112000549B (en) * | 2020-08-21 | 2022-06-17 | 北京浪潮数据技术有限公司 | Capacity analysis method of storage equipment and related device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8213515B2 (en) | Interpolated skip mode decision in video compression | |
| CN101867814B (en) | Image encoding apparatus, image encoding method, and computer program | |
| US9122609B2 (en) | Caching method and system for video coding | |
| US8019000B2 (en) | Motion vector detecting device | |
| Akiyama et al. | MPEG2 video codec using image compression DSP | |
| CN101325710A (en) | Motion refinement engine with a plurality of cost calculation methods for use in video encoding and methods for use therewith | |
| CN101014129B (en) | Video data compression method | |
| Wang et al. | A fast algorithm and its VLSI architecture for fractional motion estimation for H. 264/MPEG-4 AVC video coding | |
| JP2007251453A (en) | Moving image encoding device and program | |
| CN101631242A (en) | Video weighted prediction system and coding and decoding method thereof | |
| CN102148990B (en) | Device and method for predicting motion vector | |
| US20240037700A1 (en) | Apparatus and method for efficient motion estimation | |
| EP1940175A1 (en) | Image encoding apparatus and memory access method | |
| CN102223543B (en) | Reference pixel read and storage system | |
| WO2006006489A1 (en) | Motion detection device | |
| US8879629B2 (en) | Method and system for intra-mode selection without using reconstructed data | |
| CN101325709A (en) | Motion refinement engine with selectable partitionings for use in video encoding and methods for use therewith | |
| JP4670085B2 (en) | Method for determining reference picture block in direct coding mode | |
| Seidel et al. | Coding-and energy-efficient FME hardware design | |
| Chen et al. | Low complexity architecture design of H. 264 predictive pixel compensator for HDTV application | |
| CN100469146C (en) | Video image motion compensator | |
| Shi et al. | Algorithm optimization and hardware implementation for merge mode in HEVC | |
| KR100900058B1 (en) | Method and Circuit Operation for Motion Estimation of Deverse Multimedia Codec | |
| US5978033A (en) | Motion picture encoder | |
| KR101368732B1 (en) | Apparatus for estimating motion for h.264/avc encoder with high performance and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100120 |