Person recognition apparatus and person recognition method

摘要

A person recognition apparatus is disclosed that includes an image input unit, a face detection unit in which a face is expressed from the inputted image data, as a score which takes a value in accordance with facial likeness, a facial feature point detection unit, a feature extraction unit, a feature data administrative unit, a person identification unit to calculate similarity between the amount calculated by the feature extraction unit and the amount stored in the feature data administrative unit, a number of candidates calculation unit which displays the images stored in descending order of the similarity, and calculates a score from the face detection unit and the facial feature point detection unit, a candidate confirmation unit in which images displayed in descending order of the similarity are subjected to visual inspection.

主权项

1. A person recognition apparatus, comprising:
an input device to input image data; a face detection device configured to:
detect a face area in which a face of a person is expressed from the inputted image data, and to output a score with a large value when a face is detected, and a small value when a face is not detected, based on a brightness value of each pixel of the inputted image;detect and output a size of the face in a longitudinal direction and a lateral direction;detect and output a yaw direction, a pitch direction, and a roll direction of the face; a number of candidates calculation device configured to:
adaptively determine a threshold value relating to a calculation of the number of candidates for each input, based on the value of the detected longitudinal direction, lateral direction, yaw direction, pitch direction, and roll direction of the face;display the facial images stored in the feature data administrative device in descending order of the similarity calculated by the person identification device; andcalculate a number of facial images to be displayed in accordance with the threshold value, the score outputted from the face detection device, and the yaw direction, pitch direction, and roll direction outputted from the facial feature point detection device; and a candidate confirmation device configured to:
display retrieval candidates of the facial images in descending order of the similarity and subject said facial images to visual inspection by a user, andrecalculate the number of the facial images displayed by the number of candidates calculation device in accordance with an increase or decrease of the number of candidates to be confirmed.