JP7004522B2 - ライブネス検査方法及び装置 - Google Patents
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- G06V40/40—Spoof detection, e.g. liveness detection
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- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
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- G06Q20/401—Transaction verification
- G06Q20/4014—Identity check for transactions
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
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- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/172—Classification, e.g. identification
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/40—Spoof detection, e.g. liveness detection
- G06V40/45—Detection of the body part being alive
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1382—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger
- G06V40/1388—Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger using image processing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/14—Vascular patterns
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/168—Feature extraction; Face representation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/193—Preprocessing; Feature extraction
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Description
710、810:プロセッサ
720、820:メモリ
120、800:コンピューティング装置
830:カメラ
840:格納装置
850:入力装置
860:出力装置
870:ネットワークインターフェース
Claims (20)
- 入力映像から、オブジェクトを特徴付ける特徴点を含む関心領域を抽出するステップと、
ニューラルネットワークモデルに基づくライブネス検査モデルを用いて前記オブジェクトのライブネスを検査するステップと、
を含み、前記ライブネス検査モデルは、入力される情報に基づいて、オブジェクトのライブネスを決定するための基準値を提供するように学習されたモデルであり、
前記ライブネス検査モデルに入力される情報は、前記入力映像から抽出される関心領域の映像情報である第1入力と、前記入力映像の大きさを調整した映像情報である第2入力とを含む、ライブネス検査方法。 - 前記第2入力は前記入力映像を縮小した映像情報である、請求項1に記載のライブネス検査方法。
- 前記入力映像の大きさを調整するステップをさらに含む請求項2に記載のライブネス検査方法。
- 前記関心領域の解像度は、前記の大きさの調整された入力映像の解像度よりも高い、請求項3に記載のライブネス検査方法。
- 前記関心領域の大きさと前記の大きさの調整された入力映像の大きさは同一である、請求項3に記載のライブネス検査方法。
- 前記第1入力及び前記第2入力は、それぞれ前記ライブネス検査モデルの互いに異なる入力レイヤを介して前記ライブネス検査モデルに入力される、請求項2に記載のライブネス検査方法。
- 前記検査するステップは、以前の時間で算出された前記ライブネス検査モデルの算出結果に基づいて、現在の時間での前記オブジェクトのライブネスを検査する、請求項2に記載のライブネス検査方法。
- 前記ライブネス検査モデルは、前記ニューラルネットワークモデルのレイヤの間に形成される少なくとも1つの再帰的な接続構造を有する、請求項7に記載のライブネス検査方法。
- 前記抽出するステップは、前記入力映像で瞳孔領域を含む部分領域を前記関心領域として抽出する、請求項1に記載のライブネス検査方法。
- 前記抽出するステップは、前記入力映像から目、鼻、又は唇のうち少なくとも1つを含む部分領域を前記関心領域として抽出する、請求項1に記載のライブネス検査方法。
- 前記抽出するステップは、前記入力映像で指紋領域を含む部分領域を前記関心領域として抽出する、請求項1に記載のライブネス検査方法。
- 前記抽出するステップは、前記入力映像で静脈領域を含む部分領域を前記関心領域として抽出する、請求項1に記載のライブネス検査方法。
- 前記入力映像を正規化するステップをさらに含み、
前記抽出するステップは、前記正規化された入力映像から前記オブジェクトの関心領域を抽出する、請求項1ないし12のうちの何れか一項に記載のライブネス検査方法。 - 前記抽出するステップは、
前記入力映像から特徴点を検出するステップと、
前記検出された特徴点に基づいて前記関心領域を決定するステップと、
を含む、請求項1ないし13のうちの何れか一項に記載のライブネス検査方法。 - 前記関心領域の位置は、ライブネスを検査しようとする生体情報のタイプに基づいて決定される、請求項1ないし14のうちの何れか一項に記載のライブネス検査方法。
- コンピューティング装置に請求項1に記載のライブネス検査方法を実行させるコンピュータプログラム。
- メモリと、
前記メモリに接続した少なくとも1つのプロセッサと、を含み、
前記プロセッサは、
入力映像から、オブジェクトを特徴付ける特徴点を含む関心領域を抽出し、
ニューラルネットワークモデルに基づくライブネス検査モデルを用いて前記オブジェクトのライブネスを検査するように構成されており、
前記ライブネス検査モデルは、入力される情報に基づいて、オブジェクトのライブネスを決定するための基準値を提供するように学習されたモデルであり、
前記ライブネス検査モデルに入力される情報は、前記入力映像から抽出される関心領域の映像情報である第1入力と、前記入力映像の大きさを調整した映像情報である第2入力とを含む、ライブネス検査装置。 - 前記第2入力は前記入力映像を縮小した映像情報である、請求項17に記載のライブネス検査装置。
- 前記ライブネス検査モデルは、以前の時間で導き出された前記ライブネス検査モデルの算出結果に基づいて、現在の時間での前記オブジェクトのライブネスを検査する、請求項17又は18に記載のライブネス検査装置。
- 前記ライブネス検査モデルは、前記ニューラルネットワークモデルのレイヤの間に形成される少なくとも1つの再帰的な接続構造を有する、請求項19に記載のライブネス検査装置。
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KR1020160106763A KR102483642B1 (ko) | 2016-08-23 | 2016-08-23 | 라이브니스 검사 방법 및 장치 |
KR10-2016-0106763 | 2016-08-23 |
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JP2018032391A JP2018032391A (ja) | 2018-03-01 |
JP7004522B2 true JP7004522B2 (ja) | 2022-01-21 |
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US (3) | US10121059B2 (ja) |
EP (2) | EP3998551A1 (ja) |
JP (1) | JP7004522B2 (ja) |
KR (1) | KR102483642B1 (ja) |
CN (1) | CN107766786B (ja) |
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