Prosecution Insights
Last updated: April 19, 2026
Application No. 18/344,208

POSE ESTIMATION METHOD AND RELATED APPARATUS

Non-Final OA §103
Filed
Jun 29, 2023
Examiner
AKHAVANNIK, HADI
Art Unit
2676
Tech Center
2600 — Communications
Assignee
Huawei Technologies Co., Ltd.
OA Round
3 (Non-Final)
86%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
99%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
843 granted / 980 resolved
+24.0% vs TC avg
Moderate +13% lift
Without
With
+12.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
41 currently pending
Career history
1021
Total Applications
across all art units

Statute-Specific Performance

§101
10.5%
-29.5% vs TC avg
§103
46.5%
+6.5% vs TC avg
§102
31.9%
-8.1% vs TC avg
§112
2.9%
-37.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 980 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 . Response to Arguments Applicant's arguments filed 1/26/26 have been considered. Please see the 103 rejection below integrating Chen (2003/018765) and Xu (EventCap: Monocular 3D Capture of High-Speed Human Motions using an Event Camera). 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. Claim(s) 1-7 and 19-20 are rejected under 35 U.S.C. 103 as being unpatentable over Ji (20180174323) in view of Xu (EventCap: Monocular 3D Capture of High-Speed Human Motions using an Event Camera) in further view of Chen (2003018765). Regarding claim 1, Ji teaches and the first event image comprises an image indicating a movement trajectory that is of a target object and that is generated when the target object moves in a detection range of a motion sensor (see the abstract and par. 24); determining integration time of the first event image (par. 25); and pose estimation (par. 20). Xu teaches pose estimation method, comprising: obtaining a first event image and a first target image, wherein the first event image is aligned with the first target image in time sequence, the first target image comprises a red green blue (RGB) image or a depth image (see section 1, “we design a hybrid and ….”). It would have been obvious prior to the effective filing date of the invention to one of ordinary skill in the art to include in Ji the ability to use both event information and conventional frame images as taught by Xu. The reason is to allow multiple sources. Ji teaches pose estimation using the event frames In par. 20. Chen teaches in response to the integration time being less than a first threshold, based on the first event image rather than the first target (see the abstract and claim 1, which teaches a threshold driven integration time control technique). It would have been obvious prior to the effective filing date of the invention to one of ordinary skill in the art to include in Ji and Xu the ability use thresholds to control a mode selection as taught by Chen. The reason is to allow the system to use thresholds in order to determine which frame to choose so that processing is saved. Regarding claim 2, see par. 32 of Ji, sync times. Regarding claim 3-4, see par. 25 of Ji, associating frames. Regarding claim 5, see par. 34 of Ji, short window even only. Regarding claim 6, see pars. 32-33 of Ji. Regarding claim 7, see par. 31 of Ji, each integration time stream is processed independently. The long window will yield pose when the short window is absent. Regarding claims 19-20, see the rejection of claim 1. 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. Claim(s) 8-15 are rejected under 35 U.S.C. 103 as being unpatentable over Ji in view of Xu in further view of Chen in further view of Qi (20190259170). Regarding claim 8, Qi teaches wherein the method further comprises: performing loopback detection based on the first event image and a dictionary, wherein the dictionary comprises a dictionary constructed based on event images (see par. 5, bag of words reads on dictionary). It would have been obvious prior to the effective filing date of the invention to one of ordinary skill in the art to include in Ji, Xu and Chen the ability to use a dictionary as taught by Qi in order to better identify events. Regarding claim 9, see par. 5 of Qi that outputs landmarks. Regarding claim 10, see pars. 90-92 of Qi, detect features. Regarding claims 11-12, see pars. 71 of Qi, key frames based on quality. Ji computes confidence in par. 28. Regarding claims 13-14, see par. 9 of Qi, SLAM uses RGB. Ji teaches depth in par. 6. Regarding claim 15, Ji teaches multiscale correction in par. 34 and 28. Qi chooses the key frame with a stable mask in pars. 88-89. Allowable Subject Matter Claims 16-18 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HADI AKHAVANNIK whose telephone number is (571)272-8622. The examiner can normally be reached 9 AM - 5 PM Monday to Friday. 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, Henok Shiferaw can be reached at (571) 272-4637. 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. /HADI AKHAVANNIK/Primary Examiner, Art Unit 2676
Read full office action

Prosecution Timeline

Jun 29, 2023
Application Filed
Jul 31, 2025
Non-Final Rejection — §103
Nov 03, 2025
Response Filed
Nov 19, 2025
Final Rejection — §103
Jan 26, 2026
Response after Non-Final Action
Feb 09, 2026
Request for Continued Examination
Feb 17, 2026
Response after Non-Final Action
Feb 19, 2026
Non-Final Rejection — §103
Feb 20, 2026
Response after Non-Final Action

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
86%
Grant Probability
99%
With Interview (+12.7%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 980 resolved cases by this examiner. Grant probability derived from career allow rate.

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