DETECTION DEVICE, MOBILE BODY EQUIPMENT CONTROL SYSTEM AND PROGRAM FOR DETECTION

• Main Author: OSHIKIRI KOJI
• Format: Patent
• Language: English; Japanese
• Published: 10.11.2016
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To suppress an error detection of a detection object caused by temperature change, aged deterioration or the like of a light source, an optical member or the like.SOLUTION: In a detection device 102 which comprises detection processing execution means 102A executing detection processing for detecting a detection object such as a rain drop in an illumination area on the basis of a light-receiving amount of imaging means 206 by using captured image data obtained by capturing with the imaging means an image of the illumination area illuminated by light source light from a light source device 202, on the basis of a plurality of pieces of captured image data captured by the imaging means within a predetermined period of time, low-frequency fluctuation component detection means 102D detects a low-frequency fluctuation component having predetermined frequency or less out of fluctuation components of the light-receiving amount of the imaging means. The detection processing execution means executes the detection processing using the low-frequency fluctuation component detected by the low-frequency fluctuation component detection means.SELECTED DRAWING: Figure 2 【課題】光源や光学部材等の温度変化や経時劣化などに起因した検出対象物の誤検出を抑制する。【解決手段】光源装置２０２からの光源光によって照明される照明領域を撮像手段２０６により撮像して得られる撮像画像データを用い、該撮像手段の受光量に基づいて該照明領域内の雨滴等の検出対象物を検出する検出処理を実行する検出処理実行手段１０２Ａを備えた検出装置１０２において、前記撮像手段によって所定期間内に撮像された複数の撮像画像データに基づいて、該撮像手段の受光量の変動成分のうち所定周波数以下の低周波変動成分を検出する低周波変動成分検出手段１０２Ｄを有し、前記検出処理実行手段は、前記低周波変動成分検出手段により検出した低周波変動成分を用いて、前記検出処理を実行する。【選択図】図２