[image 00997] [再送] 講演会(12/16)のご案内

[Akihiro Sugimoto]

皆様

下記の講演会が明日(12/16)に迫りましたので、再送させていただきます。
奮ってご参加ください。

杉本

On Mon, 01 Dec 2014 12:27:49 +0900
Akihiro Sugimoto <sugimoto ＠ nii.ac.jp> wrote:

> 皆様
> 
> 12/16(火)に国立情報学研究所にて下記の講演会を開催しますので、
> 奮ってご参加ください。事前登録不要、参加費無料、です。
> 
> 杉本
> -----------------
> 日時:   　　　　12月16日(火曜）　17:30- 18:30 
> 場所:   　　　　国立情報学研究所　1208号室(12F) 
>                       東京都千代田区一ツ橋2-1-2
>                      http://www.nii.ac.jp/about/access/
> 講演者:         Tomas Pajdla　（チェコ工科大学）
>                         http://scholar.google.com/citations?user=gnR4zf8AAAAJ
> タイトル:         
>      Radial Distortion Calibration by Polynomial Matrix Inequalities Programming
> 
> 概要:
> Polynomial and rational functions are the number one choice when it comes to 
> modelling of radial distortion of lenses. However, several extrapolation
> and numerical issues may arise while using these functions.
> We will show that these problems actually happen for the radial
> distortion model used in very popular OpenCV calibration and present how
> to deal with them by enforcing non-negativity of certain polynomials.
> Further, we will show how to model these non-negativities using
> polynomial matrix inequalities (PMI) and how to estimate the radial
> distortion parameters subject to PMI constraints using semidefinite
> programming (SDP). 
> 
> -----------------------
> 
> 
> 
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