DETAILED ACTION
1. This office action is in response to U.S. Patent Application No.: 18/913,983 filed on 10/11/2024 with effective filing date 7/18/2018. Claims 1-6 are pending.
Double Patenting
2. The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969).
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3. Claim 1-6 rejected on the ground of nonstatutory double patenting as being unpatentable over claim 1-6 of U.S. Patent No. 12,137,218. Although the claims at issue are not identical, they are not patentably distinct from each other.
Current Application
US 12,137,218
1. A method of decoding a video, the method comprising: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode representing intra-prediction between color components, deriving linear model parameters of the current chroma block; obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block; and reconstructing the current chroma block based on the prediction block of the current chroma block,
wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying down-sampling filter to the luma template region, wherein the linear model parameters are derived based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
1. A method of decoding a video, the method comprising: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode indicates intra-prediction between color components, deriving linear model parameters of the current chroma block; and obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block,
wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying a down-sampling filter to the luma template region, wherein the linear model parameters are derived further based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
5. A method of encoding a video, the method comprising: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode representing intra-prediction between color components, deriving linear model parameters of the current chroma block; obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block; and obtaining a residual block of the current chroma block based on the prediction block, wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying down-sampling filter to the luma wherein the linear model parameters are derived based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
5. A method of encoding a video, the method comprising: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode indicates intra-prediction between color components, deriving linear model parameters of the current chroma block; and obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block, wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying a down-sampling filter to the luma template region, wherein the linear model parameters are derived further based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
6. A non-transitory computer readable recording medium storing a bitstream which being generated by a method of encoding a video, wherein the method comprises: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode representing intra-prediction between color components, deriving linear model parameters of the current chroma block; obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block; and obtaining a residual block of the current chroma block based on the prediction block, wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying down-sampling filter to the luma wherein the linear model parameters are derived based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
6. A non-transitory computer readable recording medium storing a bitstream which being generated by a method of encoding a video, wherein the method comprises: determining an intra-prediction mode of a current chroma block; in response to the intra-prediction mode indicates intra-prediction between color components, deriving linear model parameters of the current chroma block; and obtaining a prediction block of the current chroma block based on the linear model parameters and a reconstructed luma block corresponding to the current chroma block, wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying a down-sampling filter to the luma template region, wherein the linear model parameters are derived further based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample.
Allowable Subject Matter
4. After analyzing the current application examiner concluded that the novelty of the current application involves deriving first prediction value of a current block using one-sample included in a reference block. An illumination compensation parameter is obtained based on a predetermined reference area. Second prediction value of the current block is derived by applying the illumination compensation parameter to the first prediction value. The current block is reconstructed based on the second prediction value. First prediction value is determined as one of values of a reference sample included in the reference block corresponding to position of the sample included in the current block. Value for performing predetermined filtering on the reference sample is obtained.
The prior art of record in particular, Lee et al US 2015/0288980 A1 in view of Budagavi et al. US 2012/0328013 and Galpin et al. US 2021/0051342 A1 does not disclose, with respect to claim 1, wherein the linear model parameters are derived based on a luma template region adjacent to the reconstructed luma block and a chroma template region adjacent to the current chroma block, wherein down-sampled luma samples are obtained by applying down-sampling filter to the luma template region, wherein the linear model parameters are derived based on a maximum luma reference value, a minimum luma reference value, a maximum chroma reference value and a minimum chroma reference value, wherein the maximum luma reference value is obtained by using a maximum down-sampled luma sample in the luma template region, and the maximum chroma reference value is obtained by using a first chroma sample that has a position corresponding to the maximum down-sampled luma sample, and wherein the minimum luma reference value is obtained by using a minimum down-sampled luma sample in the luma template region, and the minimum chroma reference value is obtained by using a second chroma sample that has a position corresponding to the minimum down-sampled luma sample as claimed.
Rather, Lee et al discloses the method involves positioning predicted pixel parts along top right and left bottom directions of a current prediction unit. A predictive pixel value of a current pixel image is calculated. A geometric mean value is calculated. The predictive pixel value is generated by the predicted pixel parts in a planar interpolation part. A neighboring pixel part is fixed in an upper right side and a lower left side of the current prediction unit. Size of the current prediction unit is calculated.
Similarly, Budagavi et al. discloses computing parameters of a linear model using immediate top neighboring reconstructed luma samples and left neighboring reconstructed luma samples of a reconstructed luma block and reconstructed neighboring chroma samples of a chroma block corresponding to the reconstructed luma block. The immediate top neighboring samples are the only top neighboring reconstructed luma samples used. Samples of a predicted chroma block from corresponding samples of the down sampled reconstructed luma block are computed using the linear model and the parameters.
Moreover Galpin et al. further discloses involves determining a spatial neighboring template for a block being encoded in a picture, and determining a linear model parameter based on reconstructed samples of the spatial neighboring template for the block being encoded. The block is encoded using a linear model based on the determined linear model parameter, where the spatial neighboring template is determined by determining a number of reconstructed samples in the spatial neighboring template corresponding to the maximum integer smaller than the sum of the block width and block height
The same reasoning applies to claim 5 & 6 mutatis mutandis.
Conclusion
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/Irfan Habib/ Examiner, Art Unit 2485