DETAILED ACTION
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 .
Specification
The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification.
Claim Rejections - 35 USC § 102
The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action:
A person shall be entitled to a patent unless –
(a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention.
Claim(s) 1, 2, 4-9, and 11-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Coban et al (Algorithm description of enhanced compression model 11).
Regarding claims 1, 8, and 15, Coban discloses the same method and apparatus of encoding and decoding video data (e.g. Sec. 3.1.5), the method comprising determining a first set of transform sets (e.g. LFNST sets) and a second set of transform sets (e.g. sec, 3.3.6); determining, for a current block of video data (e.g. Fig. 3) coded using a non-directional intra mode (e.g. DIMD chroma mode), a list of intra prediction directions (e.g. horizontal, vertical) determined from a decoder-side intra mode derivation (DIMD) process applied to prediction block samples (e.g. neighboring collocated samples) of the current block; determining, for the current block, a transform set (e.g. Sec. 3.3.6) from the second set of transform sets based on a second highest intra prediction direction (e.g. second largest histogram amplitude) in the list of intra prediction directions (e.g. Sec. 3.1.5.1); and decoding the current block using a transform in the transform set (e.g. Fig. 50).
Regarding claims 2, 9, and 16, Coban discloses determining, for a second block of video data (e.g. LFNST transform set) coded using the non-directional intra mode, a second list of intra prediction directions (e.g. sec. 3.3.4) determined from the DIMD process applied to prediction block samples (e.g. MTS transform set) of the second block; determining, for the second block, a second transform set from the second set of transform sets based on a highest intra prediction direction in the second list of intra prediction directions (e.g. sec. 3.3.6); and decoding the second block using a second transform (e.g. LFNST Transpose flag) in the second transform set.
Regarding claims 4, 11, 17, Coban discloses incrementing or decrementing an index (e.g. second largest histogram amplitude value) of the second highest intra prediction direction in the list if a highest intra prediction direction (e.g. DIMD chroma = DM) in the list and the second highest intra prediction direction in the list are equal (e.g. sec. 3.1.5.1).
Regarding claims 5, 12, 18, Coban discloses decoding a syntax element (e.g. LFNST Transpose flag) to determine the transform in the transform set (e.g. sec. 3.3.6).
Regarding claims 6, 13, 19, Coban discloses decoding a syntax element (e.g. lfnstTrSctIdx) to determine to use the second set of transform sets (e.g. sec. 3.3.6).
Regarding claims 7, 14, 20, Coban discloses wherein the non-directional intra mode (e.g. sec. 3.1.8) is one of template-based intra mode derivation (TIMD), spatial geometry partition mode (SGPM), matrix-based intra prediction (MIP) mode, extrapolation filter-based intra prediction (EIP) mode, or intra temp late matching (ITMP).
Claim Rejections - 35 USC § 103
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, 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.
This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention.
Claim(s) 3 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Coban et al in view of Wang et al (2025/0379973).
Regarding claims 3, 10, Although Coban et al discloses the common DIMD process, it is noted Coban differs from the present invention in that it fails to particularly disclose a Sobel process as specified in claims 3 and 10. Wang et al however, in [0192], teaches the concept of such well-known Sobel-based process in DIMD.
Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, having both the references of Coban et al and Wang et al before him/her, to exploit the well-known Sobel-based process during DIMD of Coban et al in order to determine more than one intra prediction modes for a coding block.
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure.
US 12556698 discloses Methods And Apparatuses For Encoding/decoding A Video
US 20260032267 discloses VIDEO ENCODING AND DECODING
US 2025/0379973 discloses ADAPTIVE FILTER FOR DECODER-SIDE INTRA MODE DERIVATION
Any inquiry concerning this communication or earlier communications from the examiner should be directed to YOUNG LEE whose telephone number is (571)272-7334. The examiner can normally be reached M - F, 11 - 7.
If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Jay Patel can be reached at 571-272-2988. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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/Y LEE/ Primary Examiner, Art Unit 2485