Prosecution Insights
Last updated: April 19, 2026
Application No. 19/014,008

DESCRIPTORS FOR FILM GRAIN SYNTHESIS

Non-Final OA §103
Filed
Jan 08, 2025
Examiner
HAQUE, MD NAZMUL
Art Unit
2487
Tech Center
2400 — Computer Networks
Assignee
Tencent America LLC
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
98%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
531 granted / 641 resolved
+24.8% vs TC avg
Strong +16% interview lift
Without
With
+15.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
31 currently pending
Career history
672
Total Applications
across all art units

Statute-Specific Performance

§101
7.6%
-32.4% vs TC avg
§103
66.0%
+26.0% vs TC avg
§102
4.5%
-35.5% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 641 resolved cases

Office Action

§103
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 04/03/2025 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1-5, 10-14,19 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Gomila et al. (US 2006/0215767 A1) in view of RAMASUBRAMONIAN et al.( US 2020/0204809 A1). Regarding claim 1, Gomila discloses a method of video decoding([Abstract; para [0009]- method entails film grain extraction and film grain characterization at the encoder to enable the film grain restoration at the decoder), comprising: receiving a coded video bitstream comprising coded information of a coded picture and receiving a supplemental enhancement information (SEI) message associated with the coded picture([para 009; 0015;0017]- incoming image is then encoded and the film grain characterization information transmitted which allows a decoder decoding the encoded image to restore the film grain in accordance with the information transmitted. The method transmits the film grain particulars as parallel information to the video coded stream, typically as a film grain Supplemental Enhancement Information (SEI) message when using the ITU-T H.264 video coding standard), the SEI message indicating one or more of (i) a type of film grain, (ii) a purpose of the film grain, and (iii) essentiality of the film grain([claim 1-5, para 0016 and 0018]- The use of parametric models requires the transmission of the estimated set of parameters. The parameters will depend on the type of model as specified in Table 2, or in the simplest case, will correspond to a unique film grain model known a priori from the type of film as described in Table 1. The parameters of a given film grain model should allow adjustment of the size of the film grain, its intensity, its spatial correlation, its color correlation; an encoder should transmit the parameters 'a', 'b' and 'd' to allow a decoder to simulate the original film grain. Note that the parameters of the model could depend on other factors, such as signal intensity, the color component, etc; metadata accompanying the input video stream 12 could identify the type of film stock in accordance with Table 1. Using its look-up table, the Film Grain Characterizer 23 will provide the parameters for the identified film, as well as corresponding film grain model for that film; the coded film grain characterization information stream 27 can take the form of the film grain Supplemental Enhancement Information (SEI) message as defined in the ITU-T H.264 video coding standard; receiving the film grain characterization information includes the step of receiving information indicative of film grain size, intensity, spatial correlation, and color correlation; receiving the film grain characterization information as a Supplemental Enhancement Information (SEI) Message); and reconstructing the coded picture that is associated with the SEI message (para [0023]-[0024]- Once the Film Grain Characterizer of FIG. 3 disposes of both the input video 12 with film grain, and a reconstructed video 24 resulting from Video Encoder 13, it can accomplish the task of characterizing the observed film grain)) ; and reconstructing the coded picture that is associated with the SEI message([see in Fig. 3 and para 0023-0024]- Once the Film Grain Characterizer of FIG. 3 disposes of both the input video 12 with film grain, and a reconstructed video 24 resulting from Video Encoder 13, it can accomplish the task of characterizing the observed film grain). However, Gomila does not exclusively disclose that is applied to a first region including one or more first samples in the coded picture; and reconstructing the coded picture that is associated with the SEI message. In an analogous art, RAMASUBRAMONIAN discloses a film grain SEI message for signaling parameters of film grain that is applied to a first region including one or more first samples in the coded picture([para 0012 and 0015]- The regional nesting SEI message can include a plurality of region data defining multiple regions of a picture, and multiple nested SEI messages with sets of data and region identifiers; an SEI message that may have a region-specific application or function includes a film grain characteristics SEI message, which is used to convey a parametric model for film grain synthesis to the decoder. Film grain characteristics can be perceived differently in different parts of a picture (e.g., in different regions of the picture). Enabling region-based signaling would help in describing these characteristics). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the technique of RAMASUBRAMONIAN to the modified system of Gomila for generating regional nesting messages for video pictures doing so would improve the coding efficiency of the system [RAMASUBRAMONIAN; para 0003 and 0005]. Regarding claim 2, RAMASUBRAMONIAN discloses wherein the SEI message is a film grain synthesis (FGS) extension SEI message that indicates spatial information of the first region ([para 0013-0015]- the SEI message 236 include region data defining different regions of the picture 230 and metadata defining a function that is to be performed on the region of the picture 230 corresponding to the particular SEI message. For example, the SEI message 234 includes region 1 data 241 defining a first region of the picture 230; the region 1 data 241 defining the first region of the picture 230 is signaled both for metadata 242 in SEI message 234 and for metadata 245 in SEI message 236). Regarding claim 3, RAMASUBRAMONIAN discloses wherein the spatial information of the first region comprises a location and a size of the first region([para 0132;0140 and 0210]- the region data 351 includes syntax elements associated with the boundaries that specify the location of the top-left and the bottom-right samples of the rectangular region; the nested SEI messages 352 and 353 for which the regions are associated. In some cases, a region ID can be used to indicate a priority of the regions in a picture; ms_region_size_type_idc specifies the units in which the boundaries of the regional are specified in the SEI message). Regarding claim 4, RAMASUBRAMONIAN discloses wherein the spatial information of the first region indicates that the first region is rectangular([0126]- regional nesting SEI message can be generated and signaled that specifies rectangular regions)). Regarding claim 5, RAMASUBRAMONIAN discloses Incorporated teaches the method includes receiving a film grain synthesis (FGS) SEI message that is associated with the coded picture, the FGS SEI message indicates spatial information of the first region, and the SEI message is different from the FGS SEI message (para [0078], [0115], [0124]-[0129]- providing regional nesting messages that each includes multiple nested messages and data defining multiple regions. An example of a regional nesting message is a regional nesting Supplemental Enhancement Information (SEI) message; a film grain characteristics SEI message; set of data in a nested message defines a function that is to be performed on the one or more regions by a decoder device, a player device, or other device. For example, a set of data can define any suitable function, such as the functions performed using the film grain characteristics SEI message; The regional nesting SEI message 350 includes region data 351 defining multiple regions in the picture and also includes multiple nested SEI messages (nested SEI message 352 and nested SEI message 353)). Regarding claim 10, RAMASUBRAMONIAN discloses wherein the coded picture includes a second region that is different from the first region([abstract]- a plurality of region data defining a plurality of regions of a picture of the encoded video bitstream). Regarding claim 11, RAMASUBRAMONIAN discloses wherein the coded video bitstream includes the SEI message ([para 0108]- , Supplemental Enhancement Information (SEI) messages can be included in video bitstreams. The HEVC Specification includes several SEI messages that are not necessary for decoding of coded pictures). Regarding claim 12, the claim is interpreted and rejected for the same reason as set forth in claim 1. Hence; all limitations for claim 12 have been met in claim 1. Regarding claim 13, the claim is interpreted and rejected for the same reason as set forth in claim 2. Regarding claim 14, the claim is interpreted and rejected for the same reason as set forth in claim 5. Regarding claim 19, the claim is interpreted and rejected for the same reason as set forth in claim 10. Regarding claim 20, the claim is interpreted and rejected for the same reason as set forth in claim 1. Hence; all limitations for claim 20 have been met in claim 1. Claim 6-9 and 15-18 are rejected under 35 U.S.C. 103 as being unpatentable over Gomila in view of RAMASUBRAMONIAN as applied to claim 1 above and further in view of LLACH et al.( WO 2006055208 A1). Regarding claim 6, the combination of Gomila and RAMASUBRAMONIAN do not exclusively disclose wherein the SEI message indicates the type of film grain, and the type of the film grain is one of a soft film grain type, an organic film grain type, a living film grain type, a 8mm film grain type, a 16mm film grain type, a 35mm film grain type, and a 65-70mm film grain type. In an analogous art, LLACH discloses wherein the SEI message indicates the type of film grain, and the type of the film grain is one of a soft film grain type, an organic film grain type, a living film grain type, a 8mm film grain type, a 16mm film grain type, a 35mm film grain type, and a 65-70mm film grain type([pg. 6, lines 2-4]- a film grain pattern database enables film grain simulation in accordance with the parameters in a film grain.Supplemental Enhancement Information (SEI) message according to the H.264 I MPEG-4 A VC standard as discussed above. More specifically, devices and systems that implement the existing or future HD. DVD specifications can employ such a film grain pattern database to store samples of different film grain types). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to provide the technique of LLACH to the modified system of Gomila and RAMASUBRAMONIAN a technique for simulating film grain in an image to improve for simulating a film grain pattern [LLACH; Technical Field ]. Regarding claim 7, LLACH discloses wherein the SEI message indicates the purpose of the film grain, and the purpose of the film grain is one of a purpose for original film grain simulation ([see in Fig. 1]- in FIG. 1. The transmitter 10 could also take the form of encoder· that presents media like DVDs. The receiver 11 decodes the coded video stream and simulates film grain in accordance with the film grain information and decoded video, both received from the transmitter 10 or directly from the media itself in the case of a DVD or the 10 like, to yield an output video stream that has simulated film grain), a purpose for artistic creative effect for movies, a purpose for artistic creative effect for videos, a purpose for artistic creative effect for games, and a purpose for visual artefact masking([see in Fig. 1]- in FIG. 1. The transmitter 10 could also take the form of encoder· that presents media like DVDs. The receiver 11 decodes the coded video stream and simulates film grain in accordance with the film grain information and decoded video, both received from the transmitter 10 or directly from the media itself in the case of a DVD or the 10 like, to yield an output video stream that has simulated film grain). Regarding claim 8, LLACH discloses wherein the SEI message indicates the essentiality of the film grain, and the essentiality of the film grain is indicated by one of a plurality of values that include 0 to 3([see in Fig. 2-3 and see table-202-203( LUT 303)]- method of FIG. 2, the film grain simulation method of FiG. 3 15 obviates the use of a Gaussian random number generator. Instead, the method of FIG. 3 makes use of the look-up table 203 that contains pre-computed Gaussian random values). Regarding claim 9, LLACH discloses wherein the SEI message includes a flag indicating that the one or more of (i) the type of the film grain([pg. 6, lines 2-4]- a film grain pattern database enables film grain simulation in accordance with the parameters in a film grain. Supplemental Enhancement Information (SEI) message according to the H.264 I MPEG-4 A VC standard as discussed above. More specifically, devices and systems that implement the existing or future HD. DVD specifications can employ such a film grain pattern database to store samples of different film grain types), (ii) the purpose of the film grain, and (iii) the essentiality of the film grain are available in a payload of the SEI message ([pg. 6, lines 2-4]- a film grain pattern database enables film grain simulation in accordance with the parameters in a film grain. Supplemental Enhancement Information (SEI) message according to the H.264 I MPEG-4 A VC standard as discussed above. More specifically, devices and systems that implement the existing or future HD. DVD specifications can employ such a film grain pattern database to store samples of different film grain types). Regarding claim 15, the claim is interpreted and rejected for the same reason as set forth in claim 6. Regarding claim 16, the claim is interpreted and rejected for the same reason as set forth in claim 7. Regarding claim 17, the claim is interpreted and rejected for the same reason as set forth in claim 8. Regarding claim 18, the claim is interpreted and rejected for the same reason as set forth in claim 9. Citation of Pertinent Prior Art The prior art are made of record and not relied upon but considered pertinent to applicant’s disclosure: 1. Radosavljevic et al., US 2024/0323453 A1, discloses a method and an apparatus are presented for efficiently processing film grain while encoding or decoding video. 2. Wang et. al., US 2014/0192149 A1, discloses an encoded representation of the video data, a non-nested Supplemental Enhancement Information (SEI) message that is not nested within another SEI message in the bitstream. 3. SJÖBERG et al., US 2023/0016432 A1, discloses method includes obtaining a film grain model syntax element from a parameter set in a coded data representation. 4. Ramasubramonian et al., US 2017/0332085 A1, techniques and systems are described for generating messages and/or metadata to be applied to one or more regions of video picture. 5. Su et al., US 2025/0063203 A1, discloses a system, and bitstream syntax are described for metadata signaling and film-grain parameter adaptation based on a viewing environment which may differ from a reference environment. 6. MCCARTHY et al., US 2024/0179330, discloses systems, and bitstream syntax are described for metadata signaling and conversion for film grain encoding and synthesis. Given a bitstream with MPEG film-grain SEI messaging. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MD NAZMUL HAQUE whose telephone number is (571)272-5328. The examiner can normally be reached IFW. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, David Czekaj can be reached at 5712727327. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /MD N HAQUE/ Primary Examiner, Art Unit 2487
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Prosecution Timeline

Jan 08, 2025
Application Filed
Dec 17, 2025
Non-Final Rejection — §103
Mar 12, 2026
Applicant Interview (Telephonic)
Mar 12, 2026
Examiner Interview Summary

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Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
98%
With Interview (+15.7%)
2y 8m
Median Time to Grant
Low
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