ITE Transactions on Media Technology and Applications最新文献_第6页

[Foreword] Welcome to the Special Section on Advanced Image Sensor Technology 【前言】欢迎来到高级图像传感器技术专区

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/MTA.9.113

J. Akita

引用次数: 1

[Paper] Development of System to Classify Speckle Images for Visual Inspection of Cutlery [论文]餐具视觉检测中散斑图像分类系统的开发

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.169

Tadaaki Isobe, Y. Takimoto, Ryosuke Harakawa, M. Iwahashi

引用次数: 0

[Paper] Sports Camera Calibration using Flexible Intersection Selection and Refinement [论文]基于柔性交叉口选择与细化的运动摄像机标定

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.95

Hiroki Tsurusaki, Keisuke Nonaka, R. Watanabe, Tomoaki Konno, S. Naito

{"title":"[Paper] Sports Camera Calibration using Flexible Intersection Selection and Refinement","authors":"Hiroki Tsurusaki, Keisuke Nonaka, R. Watanabe, Tomoaki Konno, S. Naito","doi":"10.3169/mta.9.95","DOIUrl":"https://doi.org/10.3169/mta.9.95","url":null,"abstract":"Sports scene analysis is an important technology to quantify a player’s action and visualize game statistics. To realize such technology, camera calibration is required to recognize the player’s position from a video. In this paper, we propose an automatic camera calibration method by using intersection resorting and reﬁnement. Our contributions are 1) ﬂexible intersection selection and 2) intersection reﬁnement to improve accuracy in calibration. A homography matrix is used to convert world coordinates to image coordinates for the calibration. Sports scenes can be estimated by using a priori information such as length and position of ﬁeld lines and their intersections. Conventional methods using the ﬁeld lines and intersections cannot realize suﬃcient calibration accuracy because the intersections are selected from the combination of horizontal and vertical lines. Moreover, displacement at the intersections occurs between the detected position and a real one on the input image. Our proposed method can solve these problems by ﬂexible intersection selection and reﬁnement. As a result, a player’s position in the real world is identiﬁed from the video by using the estimated homography matrix. Our experimental results show that the proposed method achieves higher accuracy than that by conventional methods.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69653267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

[Paper] Design of Anisotropic Light-diffusing Film for Rotational Use of Reflective Displays [论文]用于旋转反射显示器的各向异性光扩散膜的设计

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.210

Kentaro Kusama, T. Ishinabe, B. Katagiri, H. Fujikake

引用次数: 1

[Paper] Spatial Uniformity Improvement at Low Luminance Levels for Organic Light-Emitting Diode Displays [论文]低亮度下有机发光二极管显示空间均匀性的改进

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.234

T. Okada, T. Usui, Y. Nakajima

引用次数: 0

[Paper] Multimodal Stress Estimation Using Multibiological Information: Towards More Accurate and Detailed Stress Estimation [论文]基于多生物信息的多模态应力估计:迈向更精确和详细的应力估计

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.276

Takumi Nagasawa, Ryo Takahashi, Keiko Ogawa-Ochiai, N. Tsumura

引用次数: 0

[Paper] Polarized Photoluminescence Characteristics of Uniaxially-Aligned Fluorescent Dye with Liquid Crystalline Polymer for Agricultural Applications [论文]农业用液晶聚合物单轴定向荧光染料的偏振光致发光特性

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.203

Y. Shibata, R. Tsunaki, T. Ishinabe, H. Fujikake

引用次数: 0

[Foreword] Welcome to the Special Section on Data Storage and Related Technologies 【前言】欢迎来到数据存储及相关技术专区

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.143

Y. Kawata

引用次数: 0

[Paper] Spatial Filter and Combination of Angle and Peristrophic Multiplexings to Achieve Recording Density of 1 Tbit/inch2 in Holographic Data Storage [论文]全息数据存储中空间滤波与角转复用组合实现1 Tbit/inch2的记录密度

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.153

Tetsuhiko Muroi, Yutaro Katano, N. Kinoshita, Ishii Norihiko

引用次数: 1

[Paper] Efficient Decoding Method for Holographic Data Storage Combining Convolutional Neural Network and Spatially Coupled Low-Density Parity-Check Code [论文]结合卷积神经网络和空间耦合低密度奇偶校验码的全息数据存储高效解码方法

IF 1.1

ITE Transactions on Media Technology and Applications Pub Date : 2021-01-01 DOI: 10.3169/mta.9.161

Yutaro Katano, Teruyoshi Nobukawa, Tetsuhiko Muroi, N. Kinoshita, Ishii Norihiko

{"title":"[Paper] Efficient Decoding Method for Holographic Data Storage Combining Convolutional Neural Network and Spatially Coupled Low-Density Parity-Check Code","authors":"Yutaro Katano, Teruyoshi Nobukawa, Tetsuhiko Muroi, N. Kinoshita, Ishii Norihiko","doi":"10.3169/mta.9.161","DOIUrl":"https://doi.org/10.3169/mta.9.161","url":null,"abstract":"LDPC (SC-LDPC) code 15) is one of the strongest error correction codes that approaches the Shannon limit, based on the LDPC code 16) . We confirmed that the capability of error correction of the SC-LDPC code outperforms that of the LDPC code in the HDS 17) . This study presents an effective data-decoding method by combining the CNN demodulation and SC-LDPC code to enable a more powerful error correction by using the likelihood information obtained as the output from the CNN. We evaluated the characteristics of the demodulation and error correction method using the reproduced data with numerically added noise. Abstract In this study, we propose an effective data-decoding method for holographic data storage (HDS) by combining convolutional neural network (CNN) and spatially coupled low-density parity-check (SC-LDPC) code. The trained CNN provides output class probabilities and accurately demodulates the reproduced data from HDS. We focus on these probabilities, wherein only the untrainable noise components such as white Gaussian noise remain. These are used for calculating the log likelihood ratio in the sum-product decoding for the SC-LDPC code. We demonstrate an improvement of approximately 10 dB in the required signal-to-noise ratio for an error-free decoding in numerical simulations.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69653143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3