IMAGE TRIMMING DEVICE AND IMAGE TRIMMING METHOD

To provide an image trimming device and an image trimming method which can prevent variation of quality.SOLUTION: An image processing device 1 which is an image trimming device includes a processing unit 10 which performs processing of an image obtained by image-capturing with a camera 110 placed in...

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Bibliographic Details
Main Authors TAKAHASHI YOJI, SUGIMORI JUNKO, YAMAMOTO RYOHEI, CHIKATSU HIROBUMI, TOGIN HISAO
Format Patent
LanguageEnglish
Japanese
Published 24.04.2023
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Summary:To provide an image trimming device and an image trimming method which can prevent variation of quality.SOLUTION: An image processing device 1 which is an image trimming device includes a processing unit 10 which performs processing of an image obtained by image-capturing with a camera 110 placed in a vehicle SC. The processing unit 10 executes: calculation processing which calculates a projective transformation factor between an oblique image obtained by the camera 110 image-capturing a road surface on which the vehicle SC travels and a vertical image relative to the oblique image; acquisition processing which acquires a target oblique image as a target to be processed from the camera 110; and trimming processing which sets as a trimming range Rt a range sandwiched between a pair of y coordinates in a target oblique image corresponding to an upper end and a lower end of the vertical image in a y direction which is a travelling direction of the vehicle SC on the basis of the projective transformation factor and cuts out the trimming range Rt from the target oblique image.SELECTED DRAWING: Figure 1 【課題】品質のブレを抑制可能な画像トリミング装置、及び、画像トリミング方法を提供する。【解決手段】画像トリミング装置である画像処理装置1は、車両SCに設置されたカメラ110による撮像で得られた画像の処理を行う処理部10を備える。処理部10は、カメラ110が車両SCの走行する路面を撮像することで得られる斜め画像と当該斜め画像に対応する鉛直画像との間の射影変換係数を算出する算出処理と、カメラ110から処理対象の対象斜め画像を取得する取得処理と、射影変換係数に基づいて、車両SCの進行方向であるy方向における鉛直画像の上端及び下端に対応する対象斜め画像の一対のy座標に挟まれる対象斜め画像の範囲をトリミング範囲Rtとし、対象斜め画像から当該トリミング範囲Rtを切り出すトリミング処理と、を実行する。【選択図】図1
Bibliography:Application Number: JP20210167308