ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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36.7
Displaying 1-15 of 15 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Super-Resolution for SD to HD Conversion using Total Variation Regularization Implemented on CELL Processor
    Yasutaka Sakuta, Tomio Goto, Satoshi Hirano, Masaru Sakurai
    Article type: Article
    Session ID: CE2012-7/MMS2012-7
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Among a lot of proposals for super resolution image reconstruction, the total variation (TV) regularization method is one of the most successful approach with sharp edge preservation and no artifacts. However, the TV regularization method has a disadvantage of a long computational time. In this paper, we propose a fast super-resolution method and examine this system to apply to high-definition television signal by implementing on a CELL Processor.
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  • Adaptive Image Contrast Enhancement Using Local Dynamic Histogram Equalization
    Tetsuma Iwanami, Tomio Goto, Satoshi Hirano, Masaru Sakurai
    Article type: Article
    Session ID: CE2012-8/MMS2012-8
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_5
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In this paper, we propose a new adaptive histogram equalization (HE) method. We apply the DRSHE method to several blocks of an image in order to improve the regional image contrast with automatic parameter setting and its computational time. We compared the processed image of our method with those of the various conventional HE methods. We have obtained the best image that is close to the image by the Retinex method which is considered to be the best contrast enhancement technology. The computational time is an important advantage of the proposed method. It is much smaller than that of the Retinex method and the local HE method. The automatic parameter setting is another important advantage of the proposed method because many conventional HE methods require the parameter setting in accordance with each image.
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  • Shingled File System
    Damien LE MOAL, Zvonimir BANDIC, Cyril GUYOT
    Article type: Article
    Session ID: CE2012-9/MMS2012-9
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_9
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Shingled Magnetic Recording disks overlap tracks to increase storage density, and thus require a special processing to achieve unrestricted random sector updates without data loss. The Shingled File System (SFS) is a host-side level solution to this problem and allows more efficient optimizations compared to a disk firmware based approach. Experimental results show that no overhead is incurred for large file workloads, making SFS a suitable solution for video processing devices such as personal video recorders and set-top-boxes.
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  • New Video Processing Methods to Improve Apparent Gloss
    Minoru HASEGAWA, Hidenori SAKANIWA, Masahiro OGINO, Nobuhiro FUKUDA, M ...
    Article type: Article
    Session ID: CE2012-10/MMS2012-10
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We have developed new video processing method to improve apparent gloss. The processing method had difference of brightness between inside and outside of highlights enlarged, and then gave highlights bright impress visually. We also studied evaluation method of improvement effect of apparent gloss.
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  • A Low Cost Noise Reduction Technology for Compressed Video
    Yusuke YATABE, Hironori KOMI
    Article type: Article
    Session ID: CE2012-11/MMS2012-11
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_17
    CONFERENCE PROCEEDINGS FREE ACCESS
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    a low cost noise reduction technology for compressed video such as the mosquito noise and the block noise has been developed. The authors characterized the length of filter taps for block and mosquito noise and proposed the memory sharing architecture for both types of noise detection. The architecture contributes the reduction of line memories required for buffering filtering data in a noise reduction pipeline.
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  • Very Low-Delay H.264 Codec for Consumer Application
    Hiroki MIZOSOE, Mitsuhiro OKADA, Hironori KOMI, Manabu Sasamoto, Yoshi ...
    Article type: Article
    Session ID: CE2012-12/MMS2012-12
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_21
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We have newly developed a very low-delay full HD codec with relatively lower bitrate focusing especially on consumer or small business applications. As a result of analysis on several important factors for achieving a low-delay codec, we have focused on reduction of a buffering delay. In order to achieve a target delay with as little degradation of the picture quality as possible, we have developed a novel bitrate control algorithm of keeping the maximum carry over. We made experiments of the algorithm on our versatile H.264 codec platform, and obtained the result of 10 ms minimum delay at a bitrate of 8 to 10 Mbps.
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  • Construction of Tram Location Information Delivery System using Smartphone
    Kunimitsu FUJITA, Masaya KATO, Tatsuya FURUKANE, Keiji SHIBATA, Yuukou ...
    Article type: Article
    Session ID: CE2012-13/MMS2012-13
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
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    It is very important to reduce passenger waiting time at tram station, when tram time tables are unknown by passengers. In order to accomplish that, we propose a tram location and route navigation system by using smartphones. The system is able to easily retrieve information about trams' locations by GPS, also providing users with the shortest walking route to the nearest tram station. For evaluating the usefulness of this system, we perform a demonstration experiment on an actual "Centrum" LRT system in the center of Toyama city.
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  • A Method of Controlling Presentation for Applications in Hybridcast
    Kazuhiro OTSUKI, Hisayuki OHMATA, Arisa FUJII, Keigo MAJIMA, Tomoyuki ...
    Article type: Article
    Session ID: CE2012-14/MMS2012-14
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_29
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Hybridcast is a platform in which various service providers and individuals are able to join by managing and controlling applications according to their identifications. We developed a method of controlling presentation for applications in Hybridcast as one method of controlling applications that follows presentation policy determined by broadcasters. This paper describes an outline of management of applications in Hybridcast, the transmission scheme of presentation policy, which is primary information for the method, and its prototype implementation.
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  • Effects of viewing conditions on fatigue caused by watching 3DTV
    Toshiya MORITA, Hiroshi ANDO
    Article type: Article
    Session ID: CE2012-15/MMS2012-15
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_33
    CONFERENCE PROCEEDINGS FREE ACCESS
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    To survey the present situation of fatigue caused by watching 3DTV, the degree of fatigue after watching 3D contents for one hour with commercially available 3DTV that requires use of shutter glasses was evaluated in various viewing conditions for 500 adult participants. As a result, there was no difference in the degree of fatigue between watching 2D and 3D contents with shutter glasses. On the other hand, there were differences in the sensation of fatigue between conditions with and without glasses and between viewing positions.
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  • Simultaneous Two-Image Recording by Dual Channel Polarization Holography
    Daisuke BARADA, Hiroki SEKIGUCHI, Takanori OCHIAI, Takashi FUKUDA, Shi ...
    Article type: Article
    Session ID: CE2012-16/MMS2012-16
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_37
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper introduces dual channel polarization holography as a vector wave recording technique. The principle is explained by considering the incident polarization distribution in some conditions and resultant birefringence distribution. The birefringence distribution is induced by superposing identical or different polarized signal and reference beams. In experiment, two images are independently given to p- and s- polarization components of a signal beam, and simultaneously recorded. Furthermore, it is confirmed that dual channel polarization holography can be combined to a holographic multiplex recording technique.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (87K)
  • [title in Japanese]
    Article type: Appendix
    Pages App2-
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_App2
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (87K)
  • [title in Japanese]
    Article type: Appendix
    Pages App3-
    Published: February 09, 2012
    Released on J-STAGE: September 21, 2017
    DOIhttps://doi.org/10.11485/itetr.36.7.0_App3
    CONFERENCE PROCEEDINGS FREE ACCESS
    Download PDF (87K)
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