IMAGE PROCESSING DEVICE, IMAGING DEVICE, ROADSIDE DEVICE, AND IMAGE PROCESSING METHOD

To simply perform calibration of a camera.SOLUTION: An image processing device 10 includes an image interface 18, a memory 19 and a controller 20. The image interface 18 acquires a picked-up image. The memory 19 stores the position of a world coordinate system of each of a plurality of specific feat...

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Bibliographic Details
Main Authors SAWADA RYUICHI, ARATA KOJI, HATTORI SHIGETO, TANIGAWA HIRONOBU
Format Patent
LanguageEnglish
Japanese
Published 02.08.2021
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
SIGNALLING
TESTING
TRAFFIC CONTROL SYSTEMS
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Summary:To simply perform calibration of a camera.SOLUTION: An image processing device 10 includes an image interface 18, a memory 19 and a controller 20. The image interface 18 acquires a picked-up image. The memory 19 stores the position of a world coordinate system of each of a plurality of specific feature points and the reference position of each of the plurality of specific feature points. The controller 20 detects the plurality of specific feature points in the picked-up image. The controller 20 recalculates a calibration parameter in the case that positions of a predetermined ratio or more in the picked-up image among the plurality of feature points change from reference positions.SELECTED DRAWING: Figure 2 【課題】カメラのキャリブレーションを簡潔に行う。【解決手段】画像処理装置１０は、画像インターフェース１８とメモリ１９とコントローラ２０とを有する。画像インターフェース１８は撮像画像を取得する。メモリ１９は複数の特定の特徴点それぞれのワールド座標系の位置と複数の特定の特徴点それぞれの基準位置を記憶する。コントローラ２０は撮像画像における複数の特定の特徴点を検出する。コントローラ２０は複数の特徴点の中の所定の割合以上の撮像画像における位置が基準位置から変化している場合較正パラメータを再算出する。【選択図】図２
Bibliography:Application Number: JP20200003721