In this paper, we implement an algorithm that automatically switches the total modulation orders in a field pick-up unit (FPU) for mobile live program productions and evaluate its performance through laboratory and field experiments. We are conducting R&D on high-capacity FPUs for mobile live 4K/8K program productions, such as live broadcasting for road racing. Using adaptive transmission control, we aim for stable transmission in poor propagation environments and high-speed transmission in good ones. The switching algorithm is expected to expand the variable range of throughput. We implemented the algorithm in a prototype and evaluated the algorithm's operation through laboratory and field experiments. As a result, it was confirmed that the variable range of throughput, 2.79 times with the conventional method, was expanded to 3.40 times, and the stable transmission area was expanded.
{"title":"[Paper] Field Experiment with FPUs for Mobile Relay Programs with Auto-switching of Total Modulation Orders","authors":"Kiminobu Makino, Takahiro Sato, Fumito Ito, Takayuki Nakagawa, Naohiko Iai","doi":"10.3169/mta.11.164","DOIUrl":"https://doi.org/10.3169/mta.11.164","url":null,"abstract":"In this paper, we implement an algorithm that automatically switches the total modulation orders in a field pick-up unit (FPU) for mobile live program productions and evaluate its performance through laboratory and field experiments. We are conducting R&D on high-capacity FPUs for mobile live 4K/8K program productions, such as live broadcasting for road racing. Using adaptive transmission control, we aim for stable transmission in poor propagation environments and high-speed transmission in good ones. The switching algorithm is expected to expand the variable range of throughput. We implemented the algorithm in a prototype and evaluated the algorithm's operation through laboratory and field experiments. As a result, it was confirmed that the variable range of throughput, 2.79 times with the conventional method, was expanded to 3.40 times, and the stable transmission area was expanded.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135843725","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}
A proximity capacitance image sensor and measurement system for high-sensitivity and high-resolution display inspection adopted a new step-type bonding pad structure with the thin protective film on the pixels have been developed. This sensor and system have good detectability of line and point defects in the active area on a 264 ppi thin film transistor substrate and defects of fine pitch wires in peripheral fan-out areas and complex gate driver on array areas. This technology enabled the contactless detection of fine defects in pixel and peripheral areas on display substrate, and thus, further quality and yield improvement of flat panel displays are expected.
{"title":"[Paper] High-Resolution Defect Detection for Flat Panel Display Using Proximity Capacitance Image Sensor","authors":"Toshiro Yasuda, Shigetoshi Sugawa, Rihito Kuroda, Yayoi Yokomichi, Kazuhisa Kobayashi, Hiroshi Hamori, Akinobu Teramoto","doi":"10.3169/mta.11.158","DOIUrl":"https://doi.org/10.3169/mta.11.158","url":null,"abstract":"A proximity capacitance image sensor and measurement system for high-sensitivity and high-resolution display inspection adopted a new step-type bonding pad structure with the thin protective film on the pixels have been developed. This sensor and system have good detectability of line and point defects in the active area on a 264 ppi thin film transistor substrate and defects of fine pitch wires in peripheral fan-out areas and complex gate driver on array areas. This technology enabled the contactless detection of fine defects in pixel and peripheral areas on display substrate, and thus, further quality and yield improvement of flat panel displays are expected.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135843726","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}
{"title":"[Foreword] Welcome to the Special Section on Invited Papers of Media Technology and Applications","authors":"S. Ando","doi":"10.3169/mta.11.101","DOIUrl":"https://doi.org/10.3169/mta.11.101","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69641244","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}
{"title":"[Paper] Light Field Display Using Wavelength Division Multiplexing","authors":"M. Yamauchi, T. Yendo","doi":"10.3169/mta.11.49","DOIUrl":"https://doi.org/10.3169/mta.11.49","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69642000","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}
{"title":"[Paper] Performance Improvement Technique for Windowed OFDM using Pre-Coding","authors":"K. Ohno","doi":"10.3169/mta.10.208","DOIUrl":"https://doi.org/10.3169/mta.10.208","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69639704","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}
game subjectively and objectively. They handle a networked balloon bursting game in which two players burst balloons (i.e., soft objects) in a 3D virtual space by using haptic interface devices, and the players compete for the number of burst balloons. As a result, they find that the operability of haptic interface device depends on the local lag, which is set to the network delay. They also confirm that there exists a trade-off relationship between the operability and fairness. However, they do not examine the influence of local lag on the human perception of object features. In [18], the authors examine the influence of network delay on human perception of weight in a networked virtual environment by experiment. Each of two users Abstract This paper investigates the influence of local lag on human perception of softness in a networked virtual environment with haptic sense by Quality of Experience (QoE) assessment. The local lag control can keep the consistency in the game state among multiple terminals by setting the local lag to the network delay. In the assessment, we employ only one terminal in a networked haptic balloon bursting game where there are two balloons in a virtual space; one balloon has a standard value of softness (expressed in force here) and the local lag is set to 0 ms, and the other has a different value of softness and the local lag is set to a certain value. Each subject bursts the two balloons by using a haptic interface device and answers which balloon is harder or not. As a result, we clarify how largely the local lag makes the softness harder.
游戏主观上和客观上。他们处理一个网络气球爆破游戏，其中两名玩家使用触觉界面设备在3D虚拟空间中爆破气球(即软物体)，玩家竞争爆破气球的数量。因此，他们发现触觉界面设备的可操作性取决于本地延迟，即设置为网络延迟。它们还证实了可操作性与公平性之间存在着一种权衡关系。然而，他们并没有研究局部滞后对人类感知物体特征的影响。在b[18]中，作者通过实验研究了网络延迟对网络虚拟环境中人类权重感知的影响。摘要本文采用体验质量(Quality of Experience, QoE)评价方法研究了网络虚拟环境中局部滞后对人触觉感知柔软度的影响。本地延迟控制通过将本地延迟设置为网络延迟来保持多终端之间游戏状态的一致性。在评估中，我们在一个虚拟空间中有两个气球的网络触觉气球爆破游戏中只使用了一个终端;一个气球有一个标准值的柔软度(在这里用力表示)，局部滞后设置为0 ms，另一个气球有一个不同的柔软度值，局部滞后设置为某个值。每个实验对象通过使用触觉界面设备击破两个气球，并回答哪个气球更硬或不硬。因此，我们澄清了局部滞后在多大程度上使疲软变得更加困难。
{"title":"[Paper] Influence of Local Lag on Human Perception of Softness in Networked Virtual Environment with Haptic Sense","authors":"M. Oo, Y. Ishibashi, K. Mya","doi":"10.3169/mta.10.18","DOIUrl":"https://doi.org/10.3169/mta.10.18","url":null,"abstract":"game subjectively and objectively. They handle a networked balloon bursting game in which two players burst balloons (i.e., soft objects) in a 3D virtual space by using haptic interface devices, and the players compete for the number of burst balloons. As a result, they find that the operability of haptic interface device depends on the local lag, which is set to the network delay. They also confirm that there exists a trade-off relationship between the operability and fairness. However, they do not examine the influence of local lag on the human perception of object features. In [18], the authors examine the influence of network delay on human perception of weight in a networked virtual environment by experiment. Each of two users Abstract This paper investigates the influence of local lag on human perception of softness in a networked virtual environment with haptic sense by Quality of Experience (QoE) assessment. The local lag control can keep the consistency in the game state among multiple terminals by setting the local lag to the network delay. In the assessment, we employ only one terminal in a networked haptic balloon bursting game where there are two balloons in a virtual space; one balloon has a standard value of softness (expressed in force here) and the local lag is set to 0 ms, and the other has a different value of softness and the local lag is set to a certain value. Each subject bursts the two balloons by using a haptic interface device and answers which balloon is harder or not. As a result, we clarify how largely the local lag makes the softness harder.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"225 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69639966","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}
{"title":"[Paper] Mechanism of Degradation of Moving Image Quality with Pulse Width Modulation Grayscale Expression Methods","authors":"Ryota Tanabe, T. Shiga","doi":"10.3169/mta.10.165","DOIUrl":"https://doi.org/10.3169/mta.10.165","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"32 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69640057","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}
S. Imura, K. Mineo, Y. Honda, T. Arai, K. Miyakawa, T. Watabe, M. Kubota, S. Aihara, Keisuke Nishimoto, M. Sugiyama, M. Nanba
4 K and 8 K broadcasting began in 2018, providing ultra-high image quality far superior to that of current high-definition television. The ultra-high-definition image will soon become a familiar part of people's lives. We have been conducting research and development for the realization of the next-generation ultra-realistic broadcasting system "8 K Super Hi-Vision". Even after the start of this broadcast, we are continuing our research into improving the performance of 8K cameras so that they can adapt to more diverse shooting environments. In particular, with regard to the miniaturization of pixels in imaging devices accompanying high-definition imaging, pixel sizes below 1 μm have already been reported1, 2). Such a trend results in a decrease in the amount of incident light per pixel, in other words, a decrease in the imaging device' sensitivity, which is regarded a serious issue as a factor limiting the shooting conditions. We propose a highsensitivity imaging device in which a photoconversion layer capable of avalanche multiplication of signal carrier is stacked on a complementary metal oxide semiconductor (CMOS) circuit (Fig. 1). Various methods for increasing sensitivity in conventional imaging devices, such as reducing readout noise and improving optical aperture ratio, have been tried, but these methods have yet to significantly solve the decrease in sensitivity caused by pixel miniaturization. The use of signal amplification by avalanche Abstract We present our work on a complementary metal oxide semiconductor (CMOS) image sensor that uses crystalline selenium as the photoconversion layer and enables avalanche multiplication at low voltage, with the goal of realizing a high-definition, high-sensitivity camera. Gallium oxide, used as a hole blocking layer, and nickel oxide used as an electron blocking layer effectively prevents the increase of external dark current caused by carrier injection from an external electrode. In addition, a new crystallization method was developed to improve the crystallinity of selenium for the fabrication of crystalline selenium films. We were able to capture high-quality images in a crystalline selenium-based CMOS image sensor and confirm signal amplification by a factor of approximately 1.4 at a reverse bias voltage of 22.6 V by using these film structures and deposition conditions.
{"title":"[Invited Paper] High Sensitivity Crystalline Selenium-based CMOS Image Sensor Using Avalanche Multiplication","authors":"S. Imura, K. Mineo, Y. Honda, T. Arai, K. Miyakawa, T. Watabe, M. Kubota, S. Aihara, Keisuke Nishimoto, M. Sugiyama, M. Nanba","doi":"10.3169/mta.10.52","DOIUrl":"https://doi.org/10.3169/mta.10.52","url":null,"abstract":"4 K and 8 K broadcasting began in 2018, providing ultra-high image quality far superior to that of current high-definition television. The ultra-high-definition image will soon become a familiar part of people's lives. We have been conducting research and development for the realization of the next-generation ultra-realistic broadcasting system \"8 K Super Hi-Vision\". Even after the start of this broadcast, we are continuing our research into improving the performance of 8K cameras so that they can adapt to more diverse shooting environments. In particular, with regard to the miniaturization of pixels in imaging devices accompanying high-definition imaging, pixel sizes below 1 μm have already been reported1, 2). Such a trend results in a decrease in the amount of incident light per pixel, in other words, a decrease in the imaging device' sensitivity, which is regarded a serious issue as a factor limiting the shooting conditions. We propose a highsensitivity imaging device in which a photoconversion layer capable of avalanche multiplication of signal carrier is stacked on a complementary metal oxide semiconductor (CMOS) circuit (Fig. 1). Various methods for increasing sensitivity in conventional imaging devices, such as reducing readout noise and improving optical aperture ratio, have been tried, but these methods have yet to significantly solve the decrease in sensitivity caused by pixel miniaturization. The use of signal amplification by avalanche Abstract We present our work on a complementary metal oxide semiconductor (CMOS) image sensor that uses crystalline selenium as the photoconversion layer and enables avalanche multiplication at low voltage, with the goal of realizing a high-definition, high-sensitivity camera. Gallium oxide, used as a hole blocking layer, and nickel oxide used as an electron blocking layer effectively prevents the increase of external dark current caused by carrier injection from an external electrode. In addition, a new crystallization method was developed to improve the crystallinity of selenium for the fabrication of crystalline selenium films. We were able to capture high-quality images in a crystalline selenium-based CMOS image sensor and confirm signal amplification by a factor of approximately 1.4 at a reverse bias voltage of 22.6 V by using these film structures and deposition conditions.","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69640530","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}
{"title":"[Paper] Intended 3D Content Expressions on Light-field Displays using Adaptive Depth Compression","authors":"Y. Sawahata, Yamato Miyashita, K. Komine","doi":"10.3169/mta.10.75","DOIUrl":"https://doi.org/10.3169/mta.10.75","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69640898","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}
Y. Jang, K. I. Chun, Young-Keun Ko, U. Choi, Min-gu Kang, Hyung Joon Koo, S. Choi, Dae Hwan Kim, J. Noh, K. Park
{"title":"[Paper] Improvement of Internal Compensation by Differential Offset Method for OLED Display Using High Mobility Oxide TFT","authors":"Y. Jang, K. I. Chun, Young-Keun Ko, U. Choi, Min-gu Kang, Hyung Joon Koo, S. Choi, Dae Hwan Kim, J. Noh, K. Park","doi":"10.3169/mta.10.152","DOIUrl":"https://doi.org/10.3169/mta.10.152","url":null,"abstract":"","PeriodicalId":41874,"journal":{"name":"ITE Transactions on Media Technology and Applications","volume":"177 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69639989","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}
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