PROBLEM TO BE SOLVED: To detect a temperature of a biological object in order to identify an identifying error with respect to a blood vessel image reading device of a biometric authentication device for executing personal authentication using the blood vessel image of the biomedical object.SOLUTION: In a blood vessel image imaging device (1), an imaging unit (18) and temperature sensors (20, 20A) for directly detecting the temperature of the biomedical object are arranged. The temperatures of the biomedical object when the blood vessel image is registered and used (when collated) are detected, reflected in the collation processing with difference in the temperature between when registered and when used in the case of the collation error, a cause of the collation error can be determined from the temperatures when registered and when used.COPYRIGHT: (C)2011,JPO&INPIT【課題】生体の血管像を利用して個人認証する生体認証装置の血管像読取装置に関し、照合エラーを識別するため、生体の温度を検出する。【解決手段】血管像撮像装置(1)に、撮像ユニット(18)と、生体の温度を直接検出する温度センサー(20,20A)を設ける。血管像の登録時の温度と利用時(照合時)の生体の温度を検出し、登録時と利用時との温度差により、照合処理に反映し、照合エラーの場合、登録時と利用時との温度から、照合エラーの原因を判定できる。【選択図】図3
