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The basic idea is still to separate the pictures into short-term pictures and long-term pictures. (...) A short-term picture is associated with a picture Number (PN), while the long-term picture is associated with a long-term picture Index (LPIN). (...) The memory reduction is accomplished by partitioning each reference picture into sub-pictures. While encoding, the encoder may remove sub-pictures from reference pictures in the multi-picture buffer.
Language:English
Score: 742785.8 - https://www.itu.int/wftp3/av-a...deo-site/0005_Osa/AnnU_LTP.doc
Data Source: un
Using this picture number, the decoder can detect missing pictures. (...) Each transmitted picture is given a picture number regardless of whether it is to be put in the multi-picture buffer or not. (...) Further, let us assume that the picture with picture number 1021 is to be removed from the multi-picture buffer and the current picture is to be added.
Language:English
Score: 742743.4 - https://www.itu.int/wftp3/av-a...video-site/0005_Osa/q15j66.doc
Data Source: un
Indexing past the short-term pictures must cause a reference to a long-term picture, so the decoder must know how many short-term pictures it is expected to keep. (...) To fix this, we removed NOERPSL from the picture level – making the presence of the ERPS layer mandatory at the picture level for all ERPS-mode pictures. (...) The forward reference pictures in the multi-picture buffer are defined as the pictures in the multi-picture buffer other than the backward reference pictures.
Language:English
Score: 742595.17 - https://www.itu.int/wftp3/av-a...Osa/PostMeeting/AnnU_LTPr5.doc
Data Source: un
· Do we allow sync pictures in the video redundancy coding sense (multiple P pictures having the same temporal reference and picture number)? (...) NOERPSL shall not be "1" at the picture level unless the current picture is an I or EI picture. (...) The forward reference pictures in the multi-picture buffer are defined as the pictures in the multi-picture buffer other than the backward reference pictures.
Language:English
Score: 742552.1 - https://www.itu.int/wftp3/av-a...Osa/PostMeeting/AnnU_LTPr4.doc
Data Source: un
M- 1, can utilize m pictures. When coding a picture mm The operation of the ERPS mode results in the assignment of “unused” status to some pictures or sub-picture areas of pictures that have been sent to the decoder. (...) The PN serves as a unique ID for each picture stored in the picture buffer within 1024 coded non-B pictures. (...) The forward reference pictures in the multi-picture buffer are defined as the pictures in the multi-picture buffer other than the backward reference pictures.
Language:English
Score: 742406.54 - https://www.itu.int/wftp3/av-a...Osa/PostMeeting/AnnU_LTPr6.doc
Data Source: un
The memory reduction is accomplished by partitioning each reference picture into sub-pictures. While encoding, the encoder may remove sub-pictures from reference pictures in the multi-picture buffer. (...) NOERPSL shall not be set to "1" at the picture level unless the current picture is an I or EI picture. (...) The forward-prediction pictures in the multi-picture buffer are defined as the pictures in the multi-picture buffer other than the backward reference pictures.
Language:English
Score: 742247.17 - https://www.itu.int/wftp3/av-a...Osa/PostMeeting/AnnU_LTPr3.doc
Data Source: un
The memory reduction is accomplished by partitioning each reference picture into sub-pictures. While encoding, the encoder may remove sub-pictures from reference pictures in the multi-picture buffer. (...) Picture Property Change Indicator (PPCI), Difference of Picture Numbers (DPN), and Long-term Picture Index (LPIN) are used to signal the assignment of a long-term picture index to a picture. (...) The pictures stored in the multi-picture buffers could also be divided into two groups: long-term pictures and short-term pictures.
Language:English
Score: 742158.15 - https://www.itu.int/wftp3/av-a...Osa/PostMeeting/AnnU_LTPr2.doc
Data Source: un
If the GFID of the header is the same as in the previous picture, the picture data can be decoded using the picture layer data from the previous picture. (...) Otherwise, the receiver can recover the picture header of the previous picture using the GFID of either the current picture or the picture preceding the previous picture. (...) If the picture layer data of that picture contains SEI picture header repetition, the decoder can recover the picture header of the current picture.
Language:English
Score: 741792.2 - https://www.itu.int/wftp3/av-a...video-site/9908_Ber/q15h12.doc
Data Source: un
Thus a picture immediately following a B picture in the reference layer of the B picture or another B picture which immediately follows a B picture shall have the same PN as the B picture. (...) If the current picture is a B picture, the backward reference picture shall have the same size as the current picture, and any reference picture resampling process shall be applied only to the forward reference picture. (...) If the picture is a B picture, RPBT shall not be present and the decoded picture shall not be stored in the multi-picture buffer.
Language:English
Score: 740870.9 - https://www.itu.int/wftp3/av-a...us/H263ppWhiteContribution.doc
Data Source: un
There are three scalable layers shown in Fig. 1, base_layer_0, CGS_layer_1, and spatial_layer_2, which have the same frame rate. Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 1 (2,0) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 1 (2,0) (1,0) (0,0) (2,0) (1,0) (0,0) The picture in spatial_layer_2 in Fig. 1 may also select to use the picture base_layer_0 for inter-layer prediction, as shown in Fig. 2. (...) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 2 (2,0) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 2 (2,0) (1,0) (0,0) (2,0) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 3 (2,0) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 3 (2,0) (1,0) (0,0) (2,0) (1,0) (0,0) When FGS layers are involved, the inter-layer prediction for coding mode and motion information may come from a different base layer than the inter-layer prediction for sample residual. (...) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 4 FGS_layer_1_0 picture FGS_layer_1_1 picture coding mode, motion residual (2,0) (1,2) (1,1) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 4 FGS_layer_1_0 picture FGS_layer_1_1 picture coding mode, motion residual (2,0) (1,2) (1,1) (1,0) (0,0) (2,0) (1,2) (1,1) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 5 FGS_layer_1_0 picture FGS_layer_1_1 picture coding mode, motion residual (2,0) (1,2) (1,1) (1,0) (0,0) Spatial_layer_2 picture CGS_layer_1 picture Base_layer_0 picture Fig. 5 FGS_layer_1_0 picture FGS_layer_1_1 picture coding mode, motion residual (2,0) (1,2) (1,1) (1,0) (0,0) (2,0) (1,2) (1,1) (1,0) (0,0) In the examples shown in Figs. 2 and 3, to decode and playback the shown picture in spatial_layer_2, decoding of the shown picture in CGS_layer_1 is not needed.
Language:English
Score: 740540.53 - https://www.itu.int/wftp3/av-a.../2005_07_Poznan/JVT-P062r1.doc
Data Source: un