Notice of Pre-AIA or AIA Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Claim Rejections - 35 USC § 103
In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status.
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102 of this title, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.
Claims 1-3 & 16-20 are rejected under 35 U.S.C. 103 as being unpatentable over Aono et al. (US 2022/0060741 A1(hereinafter Aono) in view of Huo et al. (WO 2020/029202 A1) (hereinafter Huo).
Regarding claim 1, Aono discloses a method for decoding [Paragraph [0146], Fig. 20(a), image decoding device], comprising:
determining reference information of a current block [Paragraph [0146]-[0171], Fig. 20(a) & 39, decoding device identifies reference pictures in reference picture memory as reference information];
performing a filtering process on at least partial information in the reference information of the current block, to determine target information of the current block [Paragraph [0179]-[0227], Fig. 39, filtered reference image configuration unit 3103 applies reference pixel filter to reference pixels to generate filtered reference image in an effort to generate prediction target blocks]; and
determining reconstructed values of second color component samples of the current block according to the prediction block [Paragraph [0159]-[0279] & [0625]-[0634], residual signal added to prediction images to generate decoded image, including chrominance component].
However Aono does not explicitly disclose determining a respective one of weighting coefficients according to each of reference sample values of a first color component in the target information; and determining a prediction block of a second color component of the current block according to the weighting coefficients and reference sample values of a second color component in the target information.
Huo teaches of determining a respective one of weighting coefficients according to each of reference sample values of a first color component in the target information [Paragraph [0047]-[0067], Obtaining weight coefficient using weight calculation model (5) based on adjacent reference value of first image component]; and determining a prediction block of a second color component of the current block according to the weighting coefficients and reference sample values of a second color component in the target information [Paragraph [0099]-[0116], Obtain second image component with second image component adjacent reference value and scale factors (based upon weight coefficients), using formulas (6) and (7)].
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 2, Aono and Huo disclose the method of claim 1, and are analyzed as previously discussed with respect to the claim.
Furthermore, Huo teaches wherein the prediction block comprises predicted values of at least a part of the second color component samples in the current block [Paragraph [0099]-[0132], obtaining the second image component prediction value corresponding to the current coding block based on the scale factor].
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 3, Aono and Huo disclose the method of claim 1, and are analyzed as previously discussed with respect to the claim.
Furthermore, Huo teaches wherein determining the reference information of the current block comprises: determining the reference information of the current block according to values of first color component samples in a neighboring area of the current block, values of second color component samples in the neighboring area of the current block, and reconstructed values of first reference color component samples in the current block [Paragraph [0043], The component neighboring reference values, for example, as shown in FIG. 5 above, are calculated using all neighboring first image component neighboring reference values L (n) and all second image component neighboring reference values C (n) to obtain the scale factors α and β. Then, the reconstruction value of the first image component of the current coding block is substituted into the linear model to obtain the predicted value of the second image component of the current coding block.]
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 16, Aono and Huo disclose the method of claim 1, and are analyzed as previously discussed with respect to the claim.
Furthermore Huo teaches wherein determining the respective one of the weighting coefficients according to each of the reference sample values of the first color component in the target information comprises: determining a respective value corresponding to each of the reference sample values of the first color component under a preset mapping relationship; and setting the respective one of the weighting coefficients to be equal to the respective value [Paragraph [0047]-[0067], Obtaining weight coefficient using weight calculation model (5) as preset mapping relationship, based on adjacent reference value of first image component and setting to scaling factor].
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 17, Aono and Huo disclose the method of claim 1, and are analyzed as previously discussed with respect to the claim.
Furthermore, Huo teaches wherein determining the prediction block of the second color component of the current block according to the weighting coefficients and the reference sample values of the second color component in the target information comprises: determining a respective weighted value between each of the reference sample values of the second color component and a weighting coefficient corresponding to the reference sample value; and setting a predicted value of a respective one of second color component samples in the prediction block to be equal to a sum of N weighted values, wherein N indicates a number of the reference sample values of the second color component, and N is a positive integer [Paragraph [0111]-[0115], Obtaining weight coefficient using formulas (6) and (7) with sum of N weighted values w(n)].
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 18, Aono and Huo disclose the method of claim 1, and are analyzed as previously discussed with respect to the claim.
Furthermore, Huo teaches wherein determining the reconstructed values of the second color component samples of the current block according to the prediction block comprises: for each of the second color component samples of the current block, determining a predicted difference value of the second color component sample;
determining a predicted value of the second color component sample according to the prediction block; and determining a reconstructed value of the second color component sample according to the predicted difference value of the second color component sample and the predicted value of the second color component sample [Paragraph [0086]-[0096] & [0152], Obtaining difference values between first and second image components].
It would have been obvious to the person of ordinary skill in the art before the effective filing date of the claimed invention to modify the method disclosed by Aono to effectively improve prediction precision of a second image component prediction value, and make a second image component prediction value closer to a real component value (Huo, Paragraph [0005]).
Regarding claim 19, claim 19 is drawn to a method for encoding having limitations similar to the method of decoding of using the same as claimed in claim 1 treated in the above rejection. Therefore, method claim 19 correspond to method claim 1 and is rejected for the same reasons of obviousness as used above.
Regarding claim 20, claim 20 is drawn to a device for decoding having limitations similar to the method of decoding of using the same as claimed in claim 1 treated in the above rejections. Therefore, device claim 20 corresponds to method claim 1 and is rejected for the same reasons of obviousness as used above.
Allowable Subject Matter
Claims 4-15 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims, and overcoming the nonstatutory double patenting rejections outlined above.
Claims 4-15 contain allowable subject matter.
The following is a statement of reasons for the indication of allowable subject matter: The various claimed limitations mentioned in the claims are not taught or suggested by the prior art taken either singly or in combination, with emphasize that it is each claim, taken as a whole, including the interrelationships and interconnections between various claimed elements make them allowable over the prior art of record.
Conclusion
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/DANIEL CHANG/Primary Examiner, Art Unit 2487