LABEL AREA DETECTION DEVICE, LABEL AREA DETECTION METHOD, LABEL AREA DETECTION PROGRAM, AND LABEL AREA DETECTION SYSTEM

• Main Authors: ADACHI TADASHI, HIDAKA YASUSHI, MORI HIROMITSU
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PERFORMING OPERATIONS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; POSTAL SORTING; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS; SEPARATING SOLIDS FROM SOLIDS; SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a label detection device that facilitates detection of a position where a mailing label is attached even when envelopes with various patterns are mixed.SOLUTION: A label area detection device comprises: a white extraction part that extracts a white component by performing HSV conversion converting a color space of an image into an HSV color space; a white article determination part that determines whether an article is white on the basis of the extracted white component; a uniformity determination part that determines whether the density of the image is uniformly distributed; a density histogram part that measures a histogram of the density distribution; a hole determination part that determines whether the area of white occupying a hole determination area including the white component extracted by the white extraction part is larger than a predetermined value; a label hole filling part that performs hole filling processing on the white area determined to have the area of white occupying the hole determination area larger than the predetermined value; and a destination label area estimation part that estimates an image area of a destination label on the basis of the measured histogram of the density distribution or the white area on which the hole filling processing has been performed.SELECTED DRAWING: Figure 10 【課題】様々な模様等の封筒が混在しても貼付された宛名ラベルの貼付位置を検出すること容易にするラベル検知装置を提供する。【解決手段】ラベル領域検知装置は、画像に対して色空間をＨＳＶ色空間に変換するＨＳＶ変換を行うことによって白色成分を抽出する白色抽出部と、抽出された白色成分に基づき、物品が白色か否かを判定する白色物品判定部と、画像の濃度分布が一様性であるか否かを判定する一様性判定部と、濃度分布のヒストグラムを測定する濃度ヒストグラム部と、白色抽出部で抽出された白色成分を含む穴判定領域に占める白色の面積が所定値より大きいか否かを判定する穴判定部と、穴判定領域に占める白色の面積が所定値より大きいと判断された白色領域に対して穴埋め処理を行うラベル内穴埋め部と、測定した濃度分布のヒストグラム又は穴埋め処理された白色領域に基づき、宛名ラベルの画像領域を推定する宛名ラベル領域推定部とを備える。【選択図】図１０