PROBLEM TO BE SOLVED: To provide an image processing device capable of extracting an object even an image has a change in the object and a part of a background in conjunction with each other.SOLUTION: An image processing device includes: storing means for storing, as background information, feature quantity information on each pixel that forms a background of an image containing an object; and control means for extracting the object from the image that has a change in the object and a part of the background in conjunction with each other on the basis of the background information. The control means includes: a calculating unit that calculates a feature quantity of each pixel; a change region extracting unit that extracts a change region; an identifying unit that identifies an image from the start of the change and to the end thereof; a determining unit that determines a similarity between the calculated feature quantity and the feature quantity in the background information for each pixel of the identified image; an updating unit that registers the feature quantity information on the pixel in the background information when a non-similar pixel is contained in the change region of the identified image; and an object extracting unit that extracts the object on the basis of the updated background information.SELECTED DRAWING: Figure 5
【課題】対象物と背景の一部が連動して変化する画像であっても対象物を抽出できる画像処理装置の提供。【解決手段】対象物を含む画像の背景を構成する各画素の特徴量情報を背景情報として記憶する記憶手段と、背景情報に基づき対象物と背景の一部が連動して変化する画像から対象物を抽出する制御手段とを有し、制御手段が、各画素の特徴量を算出する算出部と、変化領域を抽出する変化領域抽出部と、変化開始から終了までの画像を識別する識別部と、識別画像の各画素で、算出した特徴量と、背景情報の特徴量との類似判定する判定部と、非類似画素が識別画像の変化領域に含まれると当該画素の特徴量情報を背景情報に登録する更新部と、更新した背景情報に基づき対象物を抽出する対象物抽出部とを有する画像処理装置である。【選択図】図5
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM
画像処理装置、画像処理方法、及び画像処理プログラム
2018-08-09
Patent
Elektronische Ressource
Japanisch
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