PROBLEM TO BE SOLVED: To determine the presence of foreign matters uniformly sticking on an imaging lens, without requiring time and effort, by means of a small number of components.SOLUTION: An image processing apparatus 1 includes: an image acquisition unit 221 which acquires an image captured by means of an imaging lens 211; an illuminance information acquisition unit 224 which acquires illuminance information representing illuminance of an image-capturing environment when the image is captured; a memory 223 which stores one of the images acquired by the image acquisition unit 221, as a reference image, and stores brightness information of an acquired image obtained by imaging the same subject as the reference image and correlation with illuminance I to be obtained when the acquisition image is captured; and a processor 222 which determines the presence of foreign matters on the imaging lens, on the basis of the brightness information of the acquired image, the illuminance I obtained when the image is captured, and a correlation function, when the subject included in the acquired image is identified with the subject included in the reference image.SELECTED DRAWING: Figure 2
【課題】少ない部品により手間をかけずに撮像レンズに一様に付着した異物の有無を判定する。【解決手段】画像処理装置1は、撮像レンズ211を用いて撮像された画像を取得する画像取得部221と、画像が撮像されたときに、画像が撮像された環境の照度を表す照度情報を取得する照度情報取得部224と、画像取得部221が取得した画像の少なくとも一つを基準画像として記憶するとともに、基準画像と同一の被写体を撮像した取得画像の輝度情報と、該取得画像が撮像されたときの照度Iとの相関関係を記憶可能なメモリ223と、取得画像に撮像されている被写体が、基準画像に撮像されている被写体と同一であると判定した場合、該取得画像の輝度情報と、該取得画像が撮像されたときの照度Iと、相関関数とに基づいて、撮像レンズの異物の有無を判定するプロセッサ222と、を備える。【選択図】図2
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, IMAGING APPARATUS, AND MOVING BODY
画像処理装置、画像処理方法、撮像装置、及び移動体
2018-02-01
Patent
Electronic Resource
Japanese
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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