赤外線熱画像によるリンゴの検出に関する研究　第３報　　リンゴ樹の温度変化のリアルタイム計測

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タイトル別名
  • Apple Detection Using Infrared Thermal Image. (Part 3). Real-time Temperature Measurement of Apple Tree.
  • セキガイセン ネツ ガゾウ ショリ ニ ヨル リンゴ ノ ケンシュツ ニ カン
  • Real-time Temperature Measurement of Apple Tree
  • リンゴ樹の温度変化のリアルタイム計測

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抄録

In Part 1, we reported the thermal distribution characteristics and the identification methods of apples, leaves and branches by using the infrared thermal image at the specific time. This paper reports the temperature changing characteristics and the relationships among apples, leaves and air temperature based on the information measured by the infrared thermal image equipment in the real-time for 24 hours. As a result, it was confirmed that the average temperature of apples was 1°C or more higher than the one of the leaves, and the average temperature of the leaves was almost same as the air temperature within daytime and about 3 hours period after sunset. It was also clarified for a remarkable temperature difference not to exist for midnight and the early morning between the apples and the leaves, and both became almost as well as the air temperature. Moreover, a binary image was easily obtained and the apples could be detected by using this temperature difference information.

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