CN101185343A - Method for providing and using information about inter-layer prediction for video signal - Google Patents
Method for providing and using information about inter-layer prediction for video signal Download PDFInfo
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- CN101185343A CN101185343A CNA2006800184121A CN200680018412A CN101185343A CN 101185343 A CN101185343 A CN 101185343A CN A2006800184121 A CNA2006800184121 A CN A2006800184121A CN 200680018412 A CN200680018412 A CN 200680018412A CN 101185343 A CN101185343 A CN 101185343A
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Abstract
A method for decoding a video signal encoded through inter-layer prediction is provided. When encoded bitstreams of first and second layers are received and decoded into a video signal, pictures of the first layer are predicted from pictures of the second layer. It is determined whether or not inter-layer prediction is constrained under the condition that a target block in the first layer has been coded in an intra mode through prediction from a picture of the second layer. An operation for checking a flag ''intra_base_flag'' indicating whether or not image data of the target block has been coded into difference data with reference to residual data, coded in an intra mode, of a corresponding block of a different layer is skipped if it is determined that inter-layer prediction is constrained. This eliminates the need for an encoder to transmit the flag under the same condition.
Description
Technical field
The present invention relates to when this vision signal being offered a plurality of layers, to provide and use method about the information of inter-layer prediction by encoded video signal.
Background technology
According to scalable video codecs (SVC) scheme, even vision signal obtains the coding of best video quality in the decoded mode that also can present low quality video of the part that obtains picture sequence from coding (frame sequence of selecting in the middle of this picture sequence off and on).Motion compensated temporal filter device (or filtering) is a kind of encoding scheme that is proposed to be used in the SVC scheme (MCTF).
Yet though even only be that the part of the picture sequence that receives is processed, the picture sequence by SVC scheme coding also can present low-quality image, if bit rate reduces the picture quality serious degradation.In order to overcome deteriroation of image quality, can provide such as per second and have the extra auxiliary picture sequence that the small size video of littler frame number and/or picture sequence etc. have low transfer rate to have the hierarchical structure of one deck at least.
Suppose and handle two sequences, auxiliary sequencel (lower level sequence) and main picture sequence (last sequence of layer) are called as basic unit and enhancement layer respectively.Yet, because basic unit is to obtain by the identical video source of encoding with enhancement layer, so all there is redundant information in the vision signal of two layers.Correspondingly, in order to improve the code rate of enhancement layer, the coded message of use basic unit is come the encoding video signal to enhancement layer.This promptly is a kind of inter-layer prediction scheme.
For example, when the type of current macro in the enhancement layer is confirmed as the frame mode macro block, just use the view data of relevant block in the frame mode of basic unit will this current macroblock coding (this relevant block exists simultaneously with the macro block of this enhancement layer in time and be identical) in residual data.
This encoded macro block is called as " frame in BL mode block ", and be used for the standard of BL pattern in the frame of this macro block can restricted or also can be unrestricted.For example, shown in Figure 1A, inter-layer prediction can be by only just allowing inter-layer prediction to retrain when the relevant block of basic unit is encoded with frame mode.In addition, shown in Figure 1B, inter-layer prediction can be unfettered by all can allow inter-layer prediction when the relevant block of basic unit is encoded with inter-frame mode and frame mode.
Coding mode (in encoder-side) or decoding schema (in decoder end) come to be determined from pattern shown in Figure 1A and the 1B a kind of according to basic unit " constrained_intra_pred_flag ".When the macro block with residual data of encoding with frame mode was rebuilt, this sign was used to indicate fixed value (constrained_intra_pred_flag=1) or rebuilds pixel value (constrained_intra_pred_flag=0) and is used to adjacent inter mode block.
Yet, when vision signal be with as shown in Figure 23 layers encode and than upper strata (L1) and intermediate layer (L2) both by lower level (L3) being encoded as prediction interval and when they are provided for decoder subsequently, be constrained on the encoding scheme of the intra mode block that is used for lower level (L3) than upper strata (L1) and intermediate layer (L2) both.In other words, when the constrained_intra_pred_flag of lower level (L3) was ' 1 ', prediction-constraint was assigned to than upper strata (L1) and intermediate layer (L2) thereby makes and encodes by the scheme of being tied as shown in Figure 1A than upper strata (L1) and intermediate layer (L2).In addition, when constrained_intra_pred_flag was ' 0 ', prediction did not have that constraint is assigned to than upper strata (L1) and intermediate layer (L2) thereby feasiblely encodes by the no constraint scheme as shown in Figure 1B than upper strata (L1) and intermediate layer (L2).In other words, when according to lower level (L3) inter-layer prediction, then this lower level can not select inter-layer prediction constraint or inter-layer prediction not to have constraint separately than the upper strata.
In addition, owing to determine inter-layer prediction constraint (not having constraint) at " constrained_intra_pred_flag " with different attribute, if, then may lose the degree of freedom of inter-layer prediction constraint than the upper strata so " constrained_intra_pred_flag " of lower level has the central particular value of a plurality of layers.In other words, only be that inter-layer prediction constraint and inter-layer prediction do not have intrafascicular approximately one and be forced to be identified for this than the upper strata.
Summary of the invention
Correspondingly, the present invention is made is used to solve the above-mentioned problem that occurs in the prior art, and to an object of the present invention is to provide a kind of being used for by prediction-coded layer be that vision signal sends about the information of inter-layer prediction constraint and uses the information that is sent to come method to this decoding video signal.
To achieve these goals, providing a kind of is the method for the bit stream of the ground floor and the second layer with image signal encoding, and the method comprising the steps of (1) is encoded to the image block in the picture of ground floor in the residual data according to the view data corresponding to the piece of video blocks in the second layer; And (2) bit stream by ground floor provides indication information, and this indication information represents that this coding still is that inter-layer prediction does not have constraint and realizes with inter-layer prediction constraint.
According to a further aspect in the invention, provide a kind of being used for to come method that the coded bit stream of the ground floor and the second layer is decoded by the received code bit stream, the method comprising the steps of (1) determines that all or part of data of expression ground floor are not have the indication information that restrained condition is encoded with the inter-layer prediction constraint state or with inter-layer prediction, and this indication information provides by the bit stream of ground floor; And (2) thus determine to have in the picture of the whether earlier rebuilt reconstruction of inter mode block ground floor of the second layer relevant block of AD HOC.
According to another aspect of the invention, provide a kind of being used for to come method that the coded bit stream of the ground floor and the second layer is decoded by the received code bit stream, the bound indication information of use of definite indication that the method comprising the steps of (1) consecutive frame inter mode blocks of data when the reconstruction intra mode block, sign is included in the bit stream of the second layer; And (2) determine that all or part of data of expression ground floor are not have the indication information that restrained condition is encoded with the inter-layer prediction constraint state or with inter-layer prediction, provides this indication information if the use of the determined indication information indication of step (1) consecutive frame inter mode blocks of data is a bit stream affined then by ground floor.
According to one embodiment of present invention, indication information is assigned with different values according to picture type.
According to one embodiment of present invention, the type of picture is divided into two types that comprise key picture (or the picture with low frequency band component) and non-key picture (or the picture with high band component).
According to one embodiment of present invention, indication information is classified according to the type of picture and is had this picture of expression and retrained the value of encoding with inter-layer prediction constraint/nothings.
Description of drawings
Specify below considering in conjunction with the accompanying drawings, above and other purpose of the present invention, feature and advantage will be more apparent.
Figure 1A shows according to the diagrammatic sketch of inter-layer prediction constraint based on lower level prediction intra mode block;
Figure 1B shows according to inter-layer prediction does not have the diagrammatic sketch of constraint based on lower level prediction intra mode block;
Fig. 2 shows the diagrammatic sketch of an example of the inter-layer prediction scheme of higher level when vision signal is encoded by a plurality of layer that comprises 3 layers and send at least;
Fig. 3 shows the block diagram according to the structure of the video signal encoding device that adopts the ges forschung scheme for vision signal of the present invention;
Fig. 4 shows and is used for sent the block diagram of the structure of the decoder of decoding with coded data stream by the encoding device shown in Fig. 3;
Fig. 5 shows decoded device according to an embodiment of the invention and is used for determining the whether diagrammatic sketch of an example of affined grammer of inter-layer prediction;
Fig. 6 shows according to another embodiment of the present invention decoded device and is used for determining the whether diagrammatic sketch of an example of affined grammer of inter-layer prediction.
Implement optimal mode of the present invention
After this with reference to the accompanying drawings the preferred embodiments of the present invention are described.In following explanation and accompanying drawing, same numeral is used to specify identical or similar assembly, and will omit the repeat specification to same or similar assembly.
Fig. 3 shows the block diagram according to the structure of the video signal encoding device of employing vision signal ges forschung scheme of the present invention.Though the equipment shown in Fig. 3 is encoded to incoming video signal in two-layer, though this equipment 3 layers or more multi-layered in input signal is encoded, following principle of the present invention also all is suitable between each layer.
Video signal encoding device according to the present invention comprises shown in Fig. 3: enhancement layer (EL) encoder 1, be used for by a standard scheme (for example, MCTF or AVC) incoming video signal being carried out encoding scalablely and generating appropriate managerial information based on each macroblock unit; Texture coding unit 2, being used for each macroblock encoding information translation is the compression bit string; Motion encoded unit 3 is used for by being encoded to the compression bit string from the video blocks motion vector that the EL encoder obtains such as standard schemes such as AVC schemes and generating the small size video sequence that 25% or picture sequence that picture sequence for example has the original video size have size identical with enhancement layer and low frame rate; Multiplexer 5, be used for dateout, the encoded video sequence of BL encoder 4 and the output vector data of motion encoded unit 120 with predetermined format encapsulation texture coding unit 2, with predetermined format that each data are multiplexed each other, and export this multiplexed data subsequently.
EL encoder 1 is carried out motion estimation operation and predicted operation about the macro block in the predetermined image frame.In this case, video data and the coded message inter-layer prediction coding that provides from BL encoder 4 is provided EL encoder 1, to be inserted in the suitable header as macro block information according to the coded message of this inter-layer prediction coding, and when code efficiency is improved, send this coded message.
In this cataloged procedure,, then determine to be in frame mode or inter-frame mode corresponding to the piece of this current macro block according to the information that provides from BL encoder 4 if the current macro that is encoded is confirmed as the frame mode macro block.In the situation of frame mode, current macro is designated as the interior BL mode block of frame and uses the view data of the relevant block in the basic unit to be encoded in the residual data.
In the situation of inter-frame mode, current macro can be designated as BL mode block in the frame (in unconfined situation) according to the inter-layer prediction constraint that is intended for encoding/no restrained condition, and uses the view data of the relevant block of basic unit to be encoded in the residual data as described above.In case of constraint, current macro can be designated as intra mode block according to inter-layer prediction constraint/no restrained condition and also can be encoded in the residual data according to the pixel value of adjacent macroblocks.
In addition, the customizing messages that in case of constraint, comprises " constrained_intra_pred_flag " can be set as ' 1 '.If constraint is not set, then constrained_intra_pred_flag can be set as ' 0 '.The customizing messages of this setting is inserted in the header (sequence header, picture or picture group header or sheet header) that will be sent out.
In no case of constraint, EL encoder 1 is according to by being appointed as BL pattern in the frame with the image encoding of current macro to the reconstructed image of carrying out reconstruction operation (MC: motion compensation or contrary MCTF) acquisition corresponding to the inter mode block of this current macro block in the basic unit in residual data and with the pattern of the image of current macro.In the reconstruction operation of inter mode block, reconstructed image can be by receiving from BL encoder 4 requested image, and if BL encoder 4 temporary transient storing image data before current macro is encoded into residual data, then can use the view data of being stored.
EL encoder 1 can be inserted into constraint flag among of some headers.If BL encoder 1 is inserted into picture header (PPS with constraint flag; Frame parameter is provided with and PPSE; PPS expansion) or in the sheet header, EL encoder 1 can be specified inter-layer prediction constraint according to these sheets.In addition, EL encoder 1 can be inserted into constraint flag in the header of the header of sequence or picture group (GOP).In this case, all sheets that belong to this sequence or GOP stand by the constraint of constraint flag appointment comparably or do not have constraint.
Description with the cataloged procedure of multiple block mode will be omitted about macro block, because these cataloged procedures are directly not related to the present invention.In addition, cataloged procedure can adopt general known scheme.
Received image signal is stored in the extra memory cell by the cataloged procedure that comprises said process.Then, all or part of request according to decoder of picture signal is read out and is sent out by transmission channel from memory cell.Selection to the picture signal amount is to determine according to the capacity of transmission channel, so and because this selects the irrelevant description that will omit about the selection of picture signal amount with the present invention.
Fig. 4 shows the block diagram of the structure that is used for decoder that the data flow of encoding as described above and send is decoded.Decoder shown in Fig. 4 comprises: remove multiplexer 15, be used for received data flow is divided into compressing motion vectors stream and compressed macroblocks information flow; Texture decoder unit 12 is used for recovering the primitive solution compressed information stream from compressed macroblocks stream; Motion decoding unit 13 is used for recovering the primitive solution compressive flow from compressing motion vectors stream; Enhancement layer (EL) decoder 11 is used for by the MCTF scheme decompression macroblock information stream and motion vector circulation being changed to raw video signal; And basic unit (BL) decoder 14, be used for by the base layer stream of decoding such as predetermined scheme such as AVC schemes.
Thereby BL decoder 14 will be included in header information in the input base layer stream and offer EL decoder 11 and make EL decoder 11 to use to comprise the coded message (in the header at base layer stream) of the required basic unit of motion vector information and macro block mode information in decoding input base layer stream.In addition, BL decoder 14 according to the indication of EL decoder 11 will through basic unit's picture of decoding or wherein the view data of the decoded picture of part piece offer EL decoder 11.
EL decoder 11 determine to have in the middle of the received enhancement layer picture sequence will by in the header of the GOP of current decoded pictures or sequence as the constrained_inter_layer_pred_flag of inter-layer prediction constraint sign.As it is described to run through above coded sequence, can detect the inter-layer prediction constraint sign in picture header or sheet header.
If the inter-layer prediction constraint sign that is applied to decoded sheet is set as " inter-layer prediction constraint " (constrained_inter_layer_pred_flag=1), then in this sheet in the situation of interlayer BL mode block, at least for intra mode block, EL decoder 11 receive the decoded picture data (or the memory of sharing between EL decoder and BL decoder 14 reads the decoded picture data) that provide by BL decoder 14 and according to the decoded picture data corresponding to the residual data reconstruction raw image data of the data reconstruction of the piece of BL mode block in frame BL mode block in the frame.
Do not have constraint (constrained_inter_layer_pred_flag=0) if the determined inter-layer prediction constraint sign that is applied to decoded sheet is designated as inter-layer prediction, then offer EL decoder 11 corresponding to macro blocks all in this sheet and with the macro block of reconstruction in EL decoder 11 indication BL decoders 14 reconstructed base layer with decoded sheet.If BL decoder 14 is set up in the mode that BL decoder 14 always provides the decoded data of all pictures, then need not EL decoder 11 and require indication according to situation.Yet, owing to except inter-layer prediction, also used residual prediction at each interlayer based on BL pattern in the frame, therefore preferably BL decoder 14 only all data in reconstruction frames internal schema blocks of data rather than the picture offer EL decoder 11 with the data that will rebuild, and when extra indication is arranged, the inter mode block in this picture is carried out reconstruction operation (MC or contrary MCTF) so that the sheet with this reconstructed image data to be provided.
EL decoder 11 according to the sheet with the data reconstruction that receives from BL decoder 14 data reconstruction residual data of BL mode block in the present frame of corresponding of BL mode block rebuild raw image data.
According to another embodiment of the present invention, can classify and be provided with according to picture type about the information of inter-layer prediction constraint.
If being key picture or use, picture type has the picture (the L picture in the MCTF situation) that the picture of low frequency band component is encoded, then the EL encoder 1 shown in Fig. 3 can be provided with or reset about the flag information of " constrained_inter_layer_pred_L_flag ", thus this flag information is sent to decoder.If picture type is the picture (the H picture in the MCTF situation) that non-key picture or use high band component are encoded, then the EL encoder 1 shown in Fig. 3 can be provided with or reset about the flag information of " constrained_inter_layer_pred_H_flag ", thus this flag information is sent to decoder.
Key picture represents only to be encoded into by the execution predicted operation according to quality base pictures the picture of residual data.On the contrary, non-key picture is represented also to strengthen the picture that picture data is encoded into residual data according to SNR except that quality base pictures.The definition of key picture is an example, and the present invention is not subject to this definition.
Though two inter-layer prediction constraint signs (constrained_inter_layer_pred_L_flag) and (constrained_inter_layer_pred_H_flag) be applied to dissimilar pictures, these two signs have the usage identical with constrained_inter_layer_pred_flag.Correspondingly, the EL decoder 11 shown in Fig. 4 is determined the value of constrained_inter_layer_pred_L_flag when wanting decoded picture to be key picture or the picture with low frequency band component.If decoded picture is non-key picture or the picture with high band component, then EL decoder 11 is determined the value of constrained_inter_layer_pred_H_flag.Identical with the operation of the previous embodiment of the present invention according to determined value to the reconstruction operation of BL mode macro.
After this, will describe another embodiment of the present invention.
In the reconstruction of indication, whether used the constrained_intra_pred_flag of adjacent inter mode block in basic unit, to be reset in intra mode block, when constraint promptly was not set, the BL decoder 14 shown in Fig. 4 was carried out reconstruction operation with the residual data in the intra mode block of rebuilding picture by MC scheme (contrary MCTF scheme) about adjacent inter mode block.In this case, the EL encoder 1 shown in Fig. 1 with the macroblock coding that will be encoded in the enhancement layer and do not distinguish in the basic unit piece corresponding to this macro block be in inter-frame mode still be frame mode be favourable.Even because for inter mode block, the EL decoder 11 shown in Fig. 4 also can be by obtaining reconstructed image data such as the MC operation from BL decoder 14.
Correspondingly, when the constrained_intra_pred_flag of basic unit is made as ' 0 ' by BL encoder 4 (not being provided with in the situation of constraint about adjacent block), the EL encoder 1 shown in Fig. 1 sends constrained_inter_layer_pred_flag or is not to comprise that sheet or picture (sequence or the group that comprise this sheet or this picture) with the macro block of BL pattern-coding in the frame send constrained_inter_layer_pred_flag by constrained_inter_layer_pred_flag is resetted.
Because when the constrained_intra_pred_flag of basic unit is set as ' 1 ' (, owing to frame mode block encoding (or rebuild) time, do not use the data of adjacent inter mode block in constraint set on the adjacent inter mode block) can or constraint be set as the inter-layer prediction setting, EL encoder 1 is BL mode block and send this specific by constrained_inter_layer_pred_flag being made as ' 0 ' or ' 1 ' in the frame according to the predetermined prediction-constraint condition of enhancement layer with a specific block encoding.If be set as in ' 1 ' the situation not for inter-layer prediction is provided with constraint at constrained_intra_pred_flag, then EL decoder 11 according to previous embodiment as described above from the reconstruction operation of BL decoder 14 requests to inter mode block.Correspondingly, in this case, must in two-layer, all rebuild and carry out MC operation (or contrary MCTF) data.
Simultaneously, as mentioned above, according to the present invention, because constrained_inter_layer_pred_flag can be from the encoder transmission, so the EL decoder 11 among Fig. 4 determines whether to be provided with constraint for inter-layer prediction by the scheme shown in Fig. 5.
The variable " interlayer_constrained " that EL decoder 11 will be used for inter-layer prediction is initialized as no restrained condition value (that is, ' 0 ') and determines the value of transmission from the constrained_intra_pred_flag of BL decoder 14 subsequently.The value of the constrained_inter_layer_pred_flag that the EL decoder only will receive by the header of enhancement layer when the value of constrained_intra_pred_flag is ' 1 ' copies to the value of interlayer_constrained.
Whether the EL decoder 11 shown in Fig. 4 can be discerned according to the value of interlayer_constrained is that inter-layer prediction is provided with constraint.According to the state of the inter-layer prediction residual data of BL mode macro in the frame rebuild the process of raw frames data with according to before the described process of embodiment was identical.
Simultaneously, whether be inter-layer prediction be provided with constraint, and indicate the information (constrained_inter_layer_pred_flag) of selected restrained condition to classify and distribute according to picture type according to the value of the constrained_intra_pred_flag of basic unit if selecting.For example, about the value of inter-layer prediction constraint can by corresponding to key picture or use the low frequency band component coding picture constrained_inter_layer_pred_L_flag or corresponding to non-key picture or use the constrained_inter_layer_pred_H_flag of the picture of high band component coding to carry.
Though used the flag information that is classified according to picture type as mentioned above, these two signs can be according to the values of the constrained_intra_pred_flag of basic unit and are not sent out or can send with value ' 0 ' or ' 1 ' as described above.In addition, even the EL decoder 11 shown in Fig. 4 comes BL mode macro in the reconstruction frames according to transmission state.If the constrained_intra_pred_flag of basic unit has value ' 0 ', if and constrained_inter_layer_pred_L_flag or constrained_inter_layer_pred_H_flag be not sent out, then the EL decoder 11 shown in Fig. 4 determines whether to be provided with constraint for inter-layer prediction according to the grammer executable operations shown in Fig. 6 and according to the end value of the interlayer_constrained by this operation acquisition.
After this, will describe another embodiment of the present invention.
Can use not as previous embodiment is described classifies and the integrated indicator of distributing is transmitted according to picture type about the information of inter-layer prediction constraint such as " constrained_inter_layer_pred_idc " etc.
According to the present invention, no matter when how picture type all represents the constraint inter-layer prediction, constrained_inter_layer_pred_idc is set as ' 0 '.In addition, in expression (for example for first picture type, key picture or picture with low frequency band component) there is not restrained condition and (for example for inter-layer prediction for second picture type, non-key picture or picture with high band component) when being the inter-layer prediction constraint state, constrained_inter_layer_pred_idc is set as ' 1 '.No matter when how picture type all represented that inter-layer prediction does not have restrained condition, constrained_inter_layer_pred_idc was set as ' 2 '.
According to present embodiment, first picture type is encoded and do not have process that restrained condition encodes to second picture type (in fact owing to seldom have with inter-layer prediction with the inter-layer prediction constraint state, when the second type picture is when not having the restrained condition coding with inter-layer prediction, need not first kind picture to be encoded with the inter-layer prediction constraint state), so got rid of the value of indicating this situation.Yet very natural is to wait an extra value also to be fine by distributing such as ' 4 ' for the value of constrained_inter_layer_pred_idc as required.
As mentioned above, the equipment that is used for determining the information of expression inter-layer prediction constraint and can be installed in (reconstruction operation comprises the operation based on the inter mode block of the Information Selection ground reconstructed base layer of expression inter-layer prediction constraint) medium of mobile communication terminal or reproducing recorded according to definite result to the decoder of corresponding BL mode macro execution reconstruction operation.
As mentioned above, according to the present invention, inter-layer prediction constraint/no restrained condition is directly transmitted by prediction-coded layer rather than basic unit is used for inter-layer prediction, individually is provided with or discharges the prediction-constraint of each layer thus according to a plurality of layers of coding and transmission video signal the time.Correspondingly, coding can be freely carried out, and the layer coding of coding environment can be realized being suitable for.
Though preferred embodiments of the present invention have been disclosed for illustrative for illustration purposes person of skill in the art will appreciate that and can make various modifications, interpolation and replacement and can not deviate from scope and spirit essence of the present invention disclosed in the accompanying claims.
Claims (15)
- One kind to be used for image signal encoding be the method for the bit stream of the ground floor and the second layer, said method comprising the steps of:(1) according to the view data corresponding to the piece of video blocks in the described second layer picture block in the picture of described ground floor is encoded in the residual data; And(2) bit stream by described ground floor provides indication information, and described indication information represents that described coding is not have constraint with inter-layer prediction constraint or inter-layer prediction to realize.
- 2. the method for claim 1, it is characterized in that, if the information in the bit stream of the described second layer of being included in is set as the bound value of use that is illustrated in consecutive frame inter mode blocks of data when rebuilding intra mode block then described indication information represents that described coding does not have constraint with inter-layer prediction and realizes, whether the use of described information indication described consecutive frame inter mode blocks of data when rebuilding described intra mode block suffers restraints.
- 3. method as claimed in claim 2 is characterized in that described relevant block is encoded with frame mode or inter-frame mode.
- 4. the method for claim 1, it is characterized in that, if the information that is included in the bit stream of the described second layer is set as the bound value of use that is illustrated in consecutive frame inter mode blocks of data when rebuilding intra mode block, then described indication information is set as inter-layer prediction constraint value and inter-layer prediction does not have in the binding occurrence one, and whether the use of described information indication described consecutive frame inter mode blocks of data when rebuilding described intra mode block suffers restraints.
- 5. the method for claim 1 is characterized in that, described indication information comprises the multiple information that is classified and distributes according to picture type.
- 6. the method for claim 1 is characterized in that, described indication information has according to picture type and is classified and represents that this described picture is not have at least 3 kinds of information that restrained condition is encoded with the inter-layer prediction constraint state or with inter-layer prediction.
- 7. one kind is used for the method for the described coded bit stream of the ground floor and the second layer being decoded by the received code bit stream, said method comprising the steps of:(1) determine to represent that all or part of data of described ground floor are not have the indication information that restrained condition is encoded with the inter-layer prediction constraint state or with inter-layer prediction, described indication information provides by the bit stream of described ground floor; And(2) thus determine to have in the whether earlier rebuilt picture of rebuilding described ground floor of the inter mode block of the described second layer relevant block of AD HOC.
- 8. method as claimed in claim 7 is characterized in that, described AD HOC is a BL pattern in the frame.
- 9. method as claimed in claim 7 is characterized in that, in step (2), determines according to the type of picture whether the inter mode block of the described second layer is earlier rebuilt based on described indication information.
- 10. method as claimed in claim 7 is characterized in that, also comprises the step of determining indication bound sign of use of consecutive frame inter mode blocks of data when rebuilding intra mode block, and described sign is included in the bit stream of the described second layer.
- 11. method as claimed in claim 10 is characterized in that, described step (1) and step (2) are to carry out when the use of determined sign indication consecutive frame inter mode blocks of data suffers restraints.
- 12. method as claimed in claim 10, it is characterized in that, comprise that also whether earlier rebuilt the inter mode block of determining the described second layer if the use of determined sign indication consecutive frame inter mode blocks of data does not suffer restraints to have the step of the relevant block of AD HOC in the picture of rebuilding described ground floor under the situation of execution in step (1) not.
- 13. method as claimed in claim 7 is characterized in that, described indication information is included among in sheet header, picture header, sequence header and the picture group header one.
- 14. one kind is used for coming method that the coded bit stream of the ground floor and the second layer is decoded by the received code bit stream, described method comprises:(1) the bound indication information of use of definite indication consecutive frame inter mode blocks of data when rebuilding intra mode block, described sign is included in the bit stream of the described second layer; And(2) all or part of data of determining the described ground floor of expression are not have the indication information that restrained condition is encoded with the inter-layer prediction constraint state or with inter-layer prediction, are that bit stream affined then by described ground floor provides described indication information if the determined indication information of step (1) is indicated the use of described consecutive frame inter mode blocks of data.
- 15. method as claimed in claim 14 is characterized in that, described indication information is included among sheet header, picture header, sequence header and picture group header one.
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| US60/701,040 | 2005-07-21 | ||
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| CNA2006800184032A Pending CN101185333A (en) | 2005-05-26 | 2006-05-25 | Method of transmitting picture information when encoding video signal and method of using the same when decoding video signal |
| CNA2006800184121A Pending CN101185343A (en) | 2005-05-26 | 2006-05-25 | Method for providing and using information about inter-layer prediction for video signal |
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| CNA2006800184032A Pending CN101185333A (en) | 2005-05-26 | 2006-05-25 | Method of transmitting picture information when encoding video signal and method of using the same when decoding video signal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088605A (en) * | 2011-02-23 | 2011-06-08 | 浙江大学 | Rapid interlayer prediction selection method for scalable video coding |
| CN105122801A (en) * | 2013-04-17 | 2015-12-02 | 韦勒斯标准与技术协会公司 | Video signal processing method and apparatus |
| CN105122802A (en) * | 2013-04-17 | 2015-12-02 | 韦勒斯标准与技术协会公司 | Video signal processing method and apparatus |
| CN106060540A (en) * | 2012-09-28 | 2016-10-26 | 索尼公司 | Image processing device and method |
| CN108650513A (en) * | 2012-12-26 | 2018-10-12 | 韩国电子通信研究院 | Method, equipment and computer-readable medium for encoding/decoding image |
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| CN1253008C (en) * | 2001-10-26 | 2006-04-19 | 皇家飞利浦电子股份有限公司 | Spatial scalable compression |
| US20040086041A1 (en) * | 2002-10-30 | 2004-05-06 | Koninklijke Philips Electronics N.V. | System and method for advanced data partitioning for robust video transmission |
| KR100679035B1 (en) * | 2005-01-04 | 2007-02-06 | 삼성전자주식회사 | Deblocking filtering method considering intra BL mode, and video encoder/decoder based on multi-layer using the method |
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- 2006-05-25 CN CNA2006800184032A patent/CN101185333A/en active Pending
- 2006-05-25 CN CNA2006800184121A patent/CN101185343A/en active Pending
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088605A (en) * | 2011-02-23 | 2011-06-08 | 浙江大学 | Rapid interlayer prediction selection method for scalable video coding |
| CN102088605B (en) * | 2011-02-23 | 2012-12-05 | 浙江大学 | Rapid interlayer prediction selection method for scalable video coding |
| CN106060540A (en) * | 2012-09-28 | 2016-10-26 | 索尼公司 | Image processing device and method |
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| CN106060540B (en) * | 2012-09-28 | 2019-07-02 | 索尼公司 | Image processing apparatus and method |
| CN108650513A (en) * | 2012-12-26 | 2018-10-12 | 韩国电子通信研究院 | Method, equipment and computer-readable medium for encoding/decoding image |
| US11245917B2 (en) | 2012-12-26 | 2022-02-08 | Electronics And Telecommunications Research Institute | Method for encoding/decoding images, and apparatus using same |
| CN108650513B (en) * | 2012-12-26 | 2022-07-26 | 韩国电子通信研究院 | Method, apparatus, and computer-readable medium for encoding/decoding image |
| CN105122801A (en) * | 2013-04-17 | 2015-12-02 | 韦勒斯标准与技术协会公司 | Video signal processing method and apparatus |
| CN105122802A (en) * | 2013-04-17 | 2015-12-02 | 韦勒斯标准与技术协会公司 | Video signal processing method and apparatus |
Also Published As
| Publication number | Publication date |
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| KR20060122671A (en) | 2006-11-30 |
| KR20060122684A (en) | 2006-11-30 |
| KR20060122754A (en) | 2006-11-30 |
| CN101185333A (en) | 2008-05-21 |
| KR101253156B1 (en) | 2013-04-10 |
| CN101185332A (en) | 2008-05-21 |
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