映像情報メディア学会誌
Online ISSN : 1881-6908
Print ISSN : 1342-6907
ISSN-L : 1342-6907
64 巻 , 8 号
選択された号の論文の27件中1~27を表示しています
ふぉーかす
創立60周年特別寄稿
特集
映像情報メディア年報~2008年4月から2010年3月の進展~
1.画像エレクトロニクス
2.放送技術
3.メディア情報
4.アントレプレナー・エンジニアリング(起業工学)
5.立体映像技術
6.深い感性のテクノロジー“新・電気音響”研究開発~波面再生のホログラフィックな音場:胸に沁み込む音,漂うような空気感の再現~
講座
マルチメディア検索の最先端(第8回)
知っておきたいキーワード(第55回)
標準化現場ノート(第5回)
番組制作ノート(第5回)
メディアアート紀行(第5回)
私の研究開発ツール(第38回)
大学発のベンチャービジネス
見聞記
ニュース
論文・研究速報
論文
  • 丸田 英徳, 石井 雅博, 佐藤 誠
    2010 年 64 巻 8 号 p. 1250-1259
    発行日: 2010/08/01
    公開日: 2010/11/01
    ジャーナル フリー
    Estimating the salient regions of an image plays a key role in scene analysis and image understanding. We can also apply saliency-based image processing techniques to image compression, evaluation, and effective searching methods. One of the most difficult problems is estimating the regions before recognizing what is in the image -- a problem that can be solved by accessing information of the low-level structures of objects in the image. This paper describes a method for estimating salient regions in images based on the distribution stability of local extrema of luminance during image blurring. Under blurring conditions, if an object's region has a more stable structure compared to another area, it must be more salient, so the saliency of these regions must be defined based on their stability for blurring. In the developed method, the local extrema of images are used to describe the complexity of the image's objects and background. Salient regions are estimated based on the stability of the local extrema for the blurring parameter. Experiments were conducted to compare the estimated result of salient regions and the psychophysical result obtained from the analysis of eye movement recordings. Results show that our method successfully extracts salient regions of natural images.
  • 長谷川 隆行, 飯野 浩一
    2010 年 64 巻 8 号 p. 1260-1266
    発行日: 2010/08/01
    公開日: 2010/11/01
    ジャーナル フリー
    We visually evaluated the accuracy of color prediction methods that derive the colorimetric values of an object from the sensor responses of a digital still camera. Although an objective measure such as colorimetric error is often used in such evaluations, subjective evaluation is also required to ensure the practicality and acceptability of image archiving for cultural heritage. We conducted visual experiments in which observers evaluated the color matching accuracy between original Hizen porcelain and nishiki-e (Japanese woodblock prints) and their printed reproductions. Results demonstrate that the metamer estimation method, a color prediction method previously proposed by the authors, outperforms conventional methods and is therefore suitable for practical use.
研究速報
  • 外山 史, 東海林 健二, 宮道 壽一
    2010 年 64 巻 8 号 p. 1267-1272
    発行日: 2010/08/01
    公開日: 2010/11/01
    ジャーナル フリー
    To build a music database efficiently, an automatic score recognition system is a critical component. Many previous methods are applicable only to simple music scores. In the case of complex music scores, it is difficult to detect symbols correctly because of noise and connection between symbols included in the scores. In this paper, we propose a score recognition method that is applicable to complex music scores. Symbol candidates were detected by template matching. From these candidates correct symbols were selected by considering their relative positions and mutual connections. In the presence of noise and connected symbols, the proposed method outperformed “Score Maker”, which is optical music score recognition software.
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