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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 17 of 17  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
EMM, ITE-ME, IE, LOIS, IEE-CMN, IPSJ-AVM [detail] 2023-09-07
10:10
Osaka Osaka Metropolitan University - Nakamozu Campus- (Hybrid)
(Primary: On-site, Secondary: Online)
A Study on LoD-based Reordering of Displacements in Dynamic Mesh Compression
Emi Myoudou, Hitoshi Nishimura, Xu Jianfeng, Kei Kawamura (KDDI Research, Inc.)
 [more]
IMQ, IE, MVE, CQ
(Joint) [detail]
2023-03-17
12:50
Okinawa Okinawaken Seinenkaikan (Naha-shi)
(Primary: On-site, Secondary: Online)
A Study on Offset Coding of Patch Data in Video-based Point Cloud Compression (V-PCC)
Emi Myoudou, Yoshitaka Kidani, Kei Kawamura (KDDI Research.) IMQ2022-78 IE2022-155 MVE2022-108
Video-Based Point Cloud Compression (V-PCC) was standardized by Moving Picture Experts Group (MPEG). In V-PCC, the 3D po... [more] IMQ2022-78 IE2022-155 MVE2022-108
pp.302-305
IMQ, IE, MVE, CQ
(Joint) [detail]
2023-03-17
13:15
Okinawa Okinawaken Seinenkaikan (Naha-shi)
(Primary: On-site, Secondary: Online)
A study of the encoding runtime reduction for CU partition with intra prediction information in VVC
Yuta Saito, Yoshitaka Kidani, Haruhisa Kato, Kei Kawamura (KDDI Research, Inc.) IMQ2022-79 IE2022-156 MVE2022-109
Versatile Video Coding (VVC) introduced quad tree with nested multi-type tree (QTMT).
The QTMT allows to divide coding ... [more]
IMQ2022-79 IE2022-156 MVE2022-109
pp.306-308
IE 2023-02-02
15:00
Tokyo NII
(Primary: On-site, Secondary: Online)
[Invited Talk] A Study on Background Filling for the Inter-patch Area of the Texture Image in V-PCC Encoder
Shohei Adachi (Waseda Univ.), Yoshitaka Kidani, Kei Kawamura (KDDI Research), Hiroshi Watanabe (Waseda Univ.) IE2022-54
Video-based point cloud compression (V-PCC) is standardized by MPEG in 2020 as a coding method for high-density 3D point... [more] IE2022-54
pp.17-18
ITE-ME, EMM, IE, LOIS, IEE-CMN, IPSJ-AVM [detail] 2021-08-25
14:25
Online Online A Study on Applying Conditions of BDOF on VVC
Kyohei Unno, Kei Kawamura (KDDI Research) LOIS2021-19 IE2021-14 EMM2021-49
In this paper, it is reported that a study result regarding applying conditions of Bi-Directional Optical-Flow (BDOF), w... [more] LOIS2021-19 IE2021-14 EMM2021-49
pp.18-21
ITE-ME, EMM, IE, LOIS, IEE-CMN, IPSJ-AVM [detail] 2021-08-26
09:55
Online Online Adaptive Threshold Determination in Predictor Generation for Compression of Sparse Point Cloud
Kohei Matsuzaki, Kei Kawamura (KDDI Research)
 [more]
IMQ, IE, MVE, CQ
(Joint) [detail]
2019-03-14
13:00
Kagoshima Kagoshima University [Invited Talk] xR use cases and their activities toward 5G Era
Hiromasa Yanagihara, Kei Kawamura (KDDI Research) CQ2018-98
We present xR (AR / VR) use cases and their activities toward the 5G era, which is the 5th generation mobile communicati... [more] CQ2018-98
p.35
CS, IE, IPSJ-AVM, ITE-BCT [detail] 2018-11-29
13:50
Tokushima Tokushima University (Memorial Hall of Almuni(Engineering)) A Study on Extended Deblocking Filter for VVC
Kyohei Unno, Kei Kawamura, Sei Naito (KDDI Research) CS2018-76 IE2018-55
In VVC (Versatile Video Coding), which is being standardized as a next generation video coding scheme, introduction of a... [more] CS2018-76 IE2018-55
pp.39-44
PRMU, MI, IE, SIP 2018-05-18
15:15
Gifu   A Study on Mode-Size Dependent Coefficient Scanning for Future Video Coding
Yoshitaka Kidani, Kei Kawamura, Sei Naito (KDDI Research) SIP2018-16 IE2018-16 PRMU2018-16 MI2018-16
Mode dependent coefficient scan (MDCS) was introduced to HEVC that identifies a coefficient scan order in transformed re... [more] SIP2018-16 IE2018-16 PRMU2018-16 MI2018-16
pp.69-74
IE 2017-06-29
15:25
Okinawa   A Study on Frame-level Delta-QP Control for 360°VR Video
Kei Kawamura, Sei Naito (KDDI Research) IE2017-29
$360^circ$ virtual reality experience recently becomes very poplar due to low-cost equipment of head-mount display. In t... [more] IE2017-29
pp.25-28
LOIS, IE, EMM, IEE-CMN, ITE-ME [detail] 2015-09-10
14:00
Aichi Nagoya University, Higashiyama Campus A Study on Coding Control Method on Gradation Region for UHDTV
Kei Kawamura, Sei Naito (KDDI)
 [more]
IE, EMM, LOIS, IEE-CMN, ITE-ME [detail] 2014-09-19
13:35
Kochi   A study on cross component prediction for coefficient level for HEVC
Kei Kawamura, Sei Naito (KDDI R&D Labs.)
 [more]
IE, MVE 2012-03-13
10:20
Toyama Toyama University Switched 1D-Transforms with Directional Scan for Motion Compensation Residual
Kei Kawamura, Tomonobu Yoshino, Sei Naito (KDDI Labs.) IE2011-171 MVE2011-133
 [more] IE2011-171 MVE2011-133
pp.223-228
IE, ITE-ME, ITE-CE [detail] 2011-07-26
10:25
Osaka   Inter-channel Prediction Coding under CTB Structure
Kei Kawamura, Haruhisa Kato, Sei Naito (KDDI Labs.) IE2011-46
 [more] IE2011-46
pp.49-54
PRMU, IE, MI 2009-05-29
14:45
Gifu Gifu Univ. A Study on Control Parameters of Frame Decomposition Method for Comic Images
Daisuke Ishii, Kei Kawamura, Hiroshi Watanabe (Waseda Univ.) IE2009-43 PRMU2009-34 MI2009-34
Comic frame separation is need to high speed and high accuracy.
We have proposed a fast and accurate frame separation m... [more]
IE2009-43 PRMU2009-34 MI2009-34
pp.187-192
IE, IPSJ-AVM, CS, ITE-BCT 2007-12-13
16:35
Aichi Nagoya Univ. A Study on Numerical Computation of Pseudo TV-norm and its Application to Image Segmentation
Kei Kawamura, Daisuke Ishii, Hiroshi Watanabe (Waseda Univ.)
An image decomposition problem using a Total Variation norm is the object of this paper. In a conventional method, this ... [more] CS2007-39 IE2007-122
pp.57-62
CS, IE 2004-12-10
13:00
Aichi Nagoya University A Study on Hierarchical Coding of Vector Representation
Kei Kawamura (Waseda University), Yuki Yamamoto (Graduate School of GITS, Waseda University), Hiroshi Watanabe (Waseda University)
 [more] CS2004-119 IE2004-114
pp.37-42
 Results 1 - 17 of 17  /   
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