写真測量とリモートセンシング
Online ISSN : 1883-9061
Print ISSN : 0285-5844
検索
OR
閲覧
検索
50 巻 , 5 号
選択された号の論文の7件中1~7を表示しています
    • |<
    • <
    • 1
    • >
    • >|
巻頭言
カメラアイ
原著論文
  • 新井 康平, 小出石 有羽
    50 巻 (2011) 5 号 p. 276-283
    公開日: 2012/11/01
    ジャーナル フリー
    A sensitivity analysis on aerosol parameter estimation with measured solar direct and diffuse irradiance is made together with proposed solar direct and diffuse irradiance measuring instrument of solar direct and diffuse irradiance (optical Fiber Guided Hemispherical Spectral Radiometer : FighSR). Sky-radiometer and aureole-meter is well known instrument with sun tracking mechanics which allows measurements of solar direct and diffuse irradiance for estimation of aerosol parameter. The proposed measuring instrument also allows solar direct and diffuse irradiance measurements without sun tracking mechanics so that it is comparatively light and small. Therefore, it is portable and is easy to bring to test sites for field campaigns. Aerosol parameter estimation error caused by measurement error of Sky-radiometer, aureole-meter as well as the proposed FighSR instrument is also discussed. Experimental results show that Root Mean Square Error : RMSE of refractive index for 1.747-i0.0056 of refractive index at 500nm is 0.025 (Real) and 0.008 (Imaginary) when less than 5% of solar direct and diffuse irradiance measurement bias error is taken into account for both FighSR and Sky-radiometer. Meanwhile RMSE of Junge parameter is 0.25 when the Junge parameter is 3.5915 for the same bias error.
    抄録全体を表示
技術報告
解説
  • 松岡 龍治
    50 巻 (2011) 5 号 p. 302-307
    公開日: 2012/11/01
    ジャーナル フリー
    This paper discusses the expected accuracy of the 3D measurement by using a pair of convergent stereo photographs. The only assumption in the discussion is that the optical axes of both the left and right cameras lie on the same plane. The theoretical accuracy of the object-space coordinates of a point is obtained from the measurement accuracy of a point position on a photograph by using the rules of error propagation. The general formulas expressing the root mean square error of the object-space coordinates of a point include the object-space coordinates of the point. The approximate formulas for the normal case and convergent stereo photographs shown in some literatures on photogrammetry are derived from the obtained general formulas.
    抄録全体を表示
    • |<
    • <
    • 1
    • >
    • >|
feedback
Top