撮像素子の温度変調による遠赤外線カメラのコントラスト制御

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2011/10/01

タイトル(英語): Contrast Control of Far-infrared Camera by Varying the Image Sensor Temperature

著者名: 藤塚 徳夫（（株）豊田中央研究所），永縄 浩（（株）デンソー）

著者名(英語): Norio Fujitsuka (TOYOTA CENTRAL R&D LABS., INC.), Hiroshi Naganawa (DENSO CORPORATION)

キーワード: 遠赤外線カメラ，コントラスト制御，撮像素子温度，歩行者検出　　Far-infrared camera，Contrast control，Image sensor temperature，Pedestrian detection

要約(英語): A far-infrared camera is thought to be well suited to detection of pedestrians at night. However, around sunset time during the summer, because the temperature difference between pedestrians and background objects becomes small, it is difficult to distinguish pedestrians with the far-infrared camera. To solve this problem, we propose a new contrast control method that is varying of the image sensor temperature. By means of increasing the image sensor temperature from 25 to 50℃ the contrast between road and clothes, and sky and clothes increased about 1.54 and 1.64 times, respectively. The contrast between sky and skin increased about 1.55 times, but that between the road and skin did not increase. Because the emissivities of these objects were similar. The contrast control method is effective to detect objects with relatively large differences in emissivity at just about the same temperature.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.131 No.10 （2011） 特集：集積化センサとその設計・製作

本誌掲載ページ: 369-372 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/131/10/131_10_369/_article/-char/ja/