返回项目页面
对比文件列表
2012-01-12_US2012008675A_发明申请_US20120008675A1 CODING SYNTAX ELEMENTS FOR ADAPTIVE SCANS OF TRANSFORM COEFFICIENTS FOR VIDEO CODING_+++A_B_C_D_I+++.docx
2026-07-03 01:00
2013-08-01_JP2013531445A_发明专利_JP2013531445A Adapting the frequency conversion of the intra block coding based on or in edge detection based on the size and intra mode_+++A_B_C_I_d_j_k+++.docx
2026-07-03 01:00
2014-09-11_US2014254661A_发明申请_US20140254661A1 METHOD AND APPARATUS FOR APPLYING SECONDARY TRANSFORMS ON ENHANCEMENT-LAYER RESIDUALS_+++A_B_C_D_I_J_k_l+++.docx
2026-07-03 01:00
2017-03-30_US2017094313A_发明申请_US20170094313A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING_+++A_B_C_D_E_F_I_J_K_M_h+++.docx
2026-07-03 01:00
2017-03-30_US2017094314A_发明申请_US20170094314A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING WITH REORGANIZING_+++A_B_C_D_E_F_H_I_J_K_M_g_n+++.docx
2026-07-03 01:00
2017-04-06_WO2017058614A_发明申请_WO2017058614A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING_+++A_B_C_D_E_F_H_I_J_K_M_n+++.docx
2026-07-03 01:00
2017-04-06_WO2017058615A_发明申请_WO2017058615A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING WITH REORGANIZING_+++A_B_C_D_E_F_I_J_K_M_g_h_n+++.docx
2026-07-03 01:00
2017-05-01_TW201715888A_发明专利_TW201715888A 用於視訊寫碼之非可分離二次轉變_+++A_B_C_D_E_F_I_J_K_M+++.docx
2026-07-03 01:00
2017-06-16_TW201722152A_发明专利_TW201722152A 用於具有重組之視訊寫碼之非可分離二次轉變_+++A_B_C_D_E_F_I_J_K_M_h+++.docx
2026-07-03 01:00
2017-11-09_WO2017192898A_发明申请_WO2017192898A1 CONTROL-POINT BASED INTRA DIRECTION REPRESENTATION FOR INTRA CODING_+++A_B_C_D_I_J_K+++.docx
2026-07-03 01:00
2018-02-08_WO2018026118A_发明申请_WO2018026118A1 영상 부호화_복호화 방법_+++A_B_C_G_H_I_J_d_e_f_k+++.docx
2026-07-03 01:00
2018-02-09_KR1020180014655A_发明公开_KR20180014655A 영상 부호화_복호화 방법_+++A_B_C_D_E_F_H_I_g+++.docx
2026-07-03 01:00
2018-03-01_WO2018038554A_发明申请_WO2018038554A1 이차 변환을 이용한 비디오 신호의 인코딩_디코딩 방법 및 장치_+++A_B_C_E_F_I_M+++.docx
2026-07-03 01:00
2018-04-12_US2018103252A_发明申请_US20180103252A1 PRIMARY TRANSFORM AND SECONDARY TRANSFORM IN VIDEO CODING_+++A_B_C_D_E_F_I_J_K_m+++.docx
2026-07-03 01:00
2018-06-08_CN108141596A_发明公开_CN108141596A 用于视频译码的非可分离二次变换_+++A_B_C_D_E_F_H_I_J_K_M+++.docx
2026-07-03 01:00
2018-06-08_CN108141597A_发明公开_CN108141597A 用于具有重组的视频译码的非可分离二次变换_+++A_B_C_D_E_F_I_J_K_M_n+++.docx
2026-07-03 01:00
2018-06-11_KR1020180063186A_发明公开_KR20180063186A 비디오 코딩을 위한 비-분리가능한 2 차 변환_+++A_B_C_D_E_F_I_J_K_M_g_h+++.docx
2026-07-03 01:00
2018-06-11_KR1020180063187A_发明公开_KR20180063187A 재편성에 의한 비디오 코딩을 위한 비-분리가능한 2 차 변환_+++A_B_C_D_E_F_I_J_K_M+++.docx
2026-07-03 01:00
2018-08-08_EP3357242A_发明公开_EP3357242A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING_+++A_B_C_D_E_F_I_J_K_M_n+++.docx
2026-07-03 01:00
2018-08-08_EP3357243A_发明公开_EP3357243A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING WITH REORGANIZING_+++A_B_C_E_F_I_J_K_M_d_h+++.docx
2026-07-03 01:00
2019-03-28_None_发明专利_JPWO2018020589A1 自己位置推定方法及び自己位置推定装置_+++A_B_C_D_E_F_G_H_I_J_K_L_M_N_a_b_c_d_e_f_g_h_i_j_k_l_m_n+++.docx
2026-07-03 01:00
2020-11-19_None_发明专利_JPWO2019131364A1 符号化装置、復号装置、符号化方法及び復号方法_+++A_B_C_D_I_J_L_k+++.docx
2026-07-03 01:00
2018-08-08_EP3357243A_发明公开_EP3357243A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING WITH REORGANIZING_+++A_B_C_E_F_I_J_K_M_d_h+++.docx

对比文件的名称:2018-08-08_EP3357243A_发明公开_EP3357243A1 NON-SEPARABLE SECONDARY TRANSFORM FOR VIDEO CODING WITH REORGANIZING和目标专利的名称:1534对视频信号进行编码的方法和计算机可读介质CN115426493B以及本次调用的模型名称。

本次调用的模型名称为:根据系统提示信息,当前模型为智能分析模型。

### 特征比对表格

第一栏:技术特征描述及公开性判断结果第二栏:对比文件原文引用(翻译及段落标号)第三栏:公开性论述
技术特征A:基于帧内预测模式生成当前块的预测块。**《直接公开》**对比文件[0067]段: “If video encoder 20 uses intra prediction to generate the predictive blocks of a PU, video encoder 20 may generate the predictive blocks of the PU based on decoded samples of the picture associated with the PU.” <br><br> 对比文件[0201]段: “intra-prediction unit 246 may intra-predict a current block... determine an intra-prediction mode to use to encode a current block.”对比文件公开了编码端根据帧内预测模式对当前块进行帧内预测处理,以生成预测块。其在该方法中的作用与目标专利技术特征A完全相同,即用于预测当前块以进行后续的残差计算。
技术特征B:基于所述预测块生成所述当前块的残差块。**《直接公开》**对比文件[0008]段: “forming a residual video block, wherein forming the residual video block comprises subtracting one or more predictive blocks from a video block being coded.” <br><br> 对比文件[0067]段: “Residual data represents pixel differences between the original block to be coded and the predictive block.”对比文件公开了通过从当前块(原始块)中减去预测块来生成残差块。其在该方法中的作用与目标专利技术特征B完全相同,用于表示待编码信号与预测信号之间的差异。
技术特征C:基于一次变换核对所述残差块执行一次变换,以生成一次变换的块。**《直接公开》**对比文件[0008]段: “applying a first transform to the residual video block to generate a first coefficient block, the first transform converting the residual video block from a pixel domain to a frequency domain.” <br><br> 对比文件[0204]段: “Transform processing unit 252 applies a transform, such as a discrete cosine transform (DCT) or a conceptually similar transform, to the residual block, producing a video block comprising transform coefficient values.”对比文件公开了将一次变换(如DCT)应用于残差块以生成一次变换系数块。其在该方法中的作用与目标专利技术特征C完全相同,用于将残差信号从像素域变换至频域以进行能量集中。
技术特征D:确定是否将二次变换应用于所述一次变换的块。**《隐含公开》**对比文件[0152]段: “...video encoder 20 may determine whether to encode an index of a secondary transform in a bitstream... a determination that the index of the secondary transform is not encoded in the bitstream based on a sum of a total number... of nonzero coefficients at a particular block level being no greater than a given threshold value.” <br><br> 对比文件[0155]段: “video encoder 20 may determine whether a quantity of non-zero coefficients of a 2-dimensional coefficient block is greater than a threshold... apply a secondary transform...”,“...a secondary transform in response to determining that the quantity... is no greater than the threshold.”对比文件明确公开了需要根据特定条件(例如非零系数的数量)确定是否应用二次变换的通用步骤。虽然对比文件公开的判断条件与目标专利限定的条件不同,但本领域技术人员可以毫无疑义地确定,对比文件公开了“确定是否将二次变换应用于系数块”的这一基础技术步骤。
技术特征E:当确定将所述二次变换应用于所述一次变换的块时,基于所述帧内预测模式来确定多个二次变换核集合当中用于所述二次变换的二次变换核集合。**《直接公开》**对比文件[0045]段: “...the video encoder may formulate a subset of non-separable secondary transforms based on an intra prediction mode.” <br><br> 对比文件[0122]段: “...the set of non-separable transforms is specified by a luma intra prediction mode for the video data... video encoder 20 may specify that a first luma intra prediction mode for the video data is used with a first set of non-separable transforms and may specify that a second luma intra prediction mode for the video data is used with a second set of non-separable transforms.” <br><br> 对比文件[0127]段: “In an example, there are a total of 12 transform subsets... The transform subset may be specified by the luma intra prediction mode, and for different intra modes, the same transform set may be applied.”对比文件公开了根据帧内预测模式来确定二次变换核集合(子集)的技术方案。本领域技术人员可以理解,当确定应用二次变换时,必然需要基于帧内预测模式选择一个变换核集合。其在该方法中的作用与目标专利技术特征E完全相同。
技术特征F:其中,多个帧内预测模式中的每一个被映射到所述多个二次变换核集合中的一个。**《直接公开》**对比文件[0181]段及图7A: “FIG. 7A is an illustration of an example mapping from luma intra mode to transform set index.”, “luma intra prediction mode ‘0’ specifies transform set index ‘0’...”.对比文件通过图7A和文字明确示出了帧内预测模式与二次变换核集合索引之间的映射关系。其在该方法中的作用与目标专利技术特征F完全相同,用于将每个帧内预测模式指定到某个具体的变换核集合。
技术特征G:所述多个二次变换核集合中的每一个二次变换核集合包括两个变换核。**无公开**对比文件[0127]段: “In an example, there are a total of 12 transform subsets... Each transform set contains three 16x16 transform candidates.” <br><br> 对比文件[0129]段: “In an aspect of the example, for planar or DC prediction mode, the number of transforms in a transforms subset is 2, while for other prediction modes, the number of transforms in a transforms subset is 3.”对比文件明确教导其变换核集合通常包含3个候选变换核,仅针对平面模式和DC模式使用包含2个变换核的集合。目标专利技术特征G限定“每一个”集合均包含两个变换核,对比文件既未直接公开也未隐含公开该限定。
技术特征H:确定在所确定的二次变换核集合中包括的所述两个变换核当中的二次变换核。**《隐含公开》**对比文件[0122]段: “...select one candidate from the subset of the set of non-separable transforms as the second transform.” <br><br> 对比文件[0147]段: “...the selection of the first inverse transform from the set of non-separable transforms may be signaled by an index for a TU, a PU, a CU, or a combination thereof.”对比文件虽然未限定集合中仅有“两个”变换核,但明确公开了从已确定的集合中通过索引选择一个特定变换核的机制。本领域技术人员可以合理推断,这种选择机制同样适用于包含任意数量(包括两个)变换核的集合,这是变换编码领域的通用技术手段。
技术特征I:基于所确定的二次变换核对所述一次变换的块执行所述二次变换以生成二次变换的块。**《直接公开》**对比文件[0008]段: “applying a second transform to at least part of the first coefficient block to generate a second coefficient block, the second transform being a non-separable transform.” <br><br> 对比文件[0044]段: “...a video decoder may apply a first inverse transform to at least part of an inverse quantized first coefficient block to generate a second coefficient block, the first inverse transform being a non-separable transform.”(其编码端对应的处理在[0008]及[0119]段: “video encoder 20 may apply a secondary transform to at least part of the first coefficient block to generate a second coefficient block.”)对比文件公开了将所选择的二次变换应用于一次变换产生的系数块,以生成二次变换的系数块。其在该方法中的作用与目标专利技术特征I完全相同,用于通过二次变换进一步增强能量集中度。
技术特征J:生成句法元素,该句法元素包括关于所述二次变换是否应用于所述当前块以及应用为所述当前块的所述二次变换的所述二次变换核的信息。**《直接公开》**对比文件[0182]段: “an ROT index may be an index value signaled per CU in a bitstream, and the ROT index value may range from 0 to 3. In some instances, an ROT index 0 specifies that no secondary transform is applied, and an ROT index 1 - 3 specifies the selected one transform from 3 different ROTs.”对比文件公开的ROT索引(即NSST索引)是一种句法元素,其值为0表示不应用二次变换,其值为1-3表示应用了特定的某个变换核。这完全涵盖了对“是否应用”以及“应用哪个核”的信息进行信令通知的功能。
技术特征K:其中,当确定将所述二次变换应用于所述当前块时,所述句法元素具有非零值。**《直接公开》**对比文件[0182]段: “ROT index 0 specifies that no secondary transform is applied... ROT index 1 - 3 specifies the selected one transform...”对比文件明确公开了应用二次变换时句法元素(ROT索引)的值为非零(1/2/3),不应用时值为0。与目标专利技术特征K完全相同。
技术特征L:其中,基于所述一次变换核为DCT2来确定将所述二次变换应用于所述当前块。**无公开**对比文件[0106]段: “In EMT, a CU-level flag may be signaled to indicate whether only the conventional DCT-2 or other non-DCT2 type transforms are used. If the CU-level is signaled as 1, a two-bit TU-level index may be further signaled for each TU inside the current CU to indicate which horizontal/vertical transform from a transform subset is used for the current TU.” <br><br> 对比文件[0152]-[0166]段: 第五技术方案公开了基于非零系数(数量、绝对值和等)、块大小、变换跳过模式等条件跳过二次变换的信令和应用。对比文件并未将“是否应用二次变换”与“一次变换核是否为DCT2”进行直接关联。对比文件中的二次变换的启用/禁用是基于非零系数的能量、块大小或变换跳过模式等条件。目标专利技术特征L限定了独特的触发机制,即通过限制仅当使用DCT2作为一次变换时才能应用二次变换,以降低复杂度。
技术特征M:其中,所述多个帧内预测模式的数量大于所述多个二次变换核集合的数量。**《直接公开》**对比文件[0181]段: “...a total of 12 non-separable 16x16 transform sets... 67 luma intra prediction modes, including planar (0), DC (1) and 65 angular luma intra prediction modes (2 ~ 66).”对比文件明确公开了帧内预测模式的数量(67个)大于二次变换核集合的数量(12个)。与目标专利技术特征M完全相同。
技术特征N:其中,所述多个二次变换核集合的数量为4,并且所述多个帧内预测模式的数量为67。**无公开**对比文件[0181]段: “...a total of 12 non-separable 16x16 transform sets... 67 luma intra prediction modes...” <br><br> 对比文件[0125]段: “In accordance with some examples of the second technique, the number of subsets of transforms may be limited to a small integer, e.g., 1, 2, 3, 4, 12, or 34.”对比文件明确教导其核心实施例中变换核集合的数量为12个。虽然对比文件在其他示例中笼统地列举了“4”作为可能的取值,但这并非针对目标专利技术特征N所限定的将67个帧内预测模式映射到4个具体集合的技术方案,对比文件也未给出为何及如何设置为4个集合的技术启示。该特征既未被直接公开也未隐含公开。

<<<A>>> <<<B>>> <<<C>>> <<<d>>> <<<E>>> <<<F>>> <<<h>>> <<<I>>> <<<J>>> <<<K>>> <<<M>>>

权利要求与技术特征
Powered by Django

网站备案号:渝ICP备2023012882号


重庆市非显而易见网络科技有限责任公司 A Anti NPE NPE