Face detection method and device

Abstract

The embodiment of the invention discloses a face detection method and device. The method comprises: determining a human face candidate area in the to-be-detected image according to a human face detection model comprising a multi-layer convolutional network, determining that the face candidate area is a corresponding small-scale face according to the size parameters of the face candidate area; facedetection is carried out on the face candidate area through a first detection model; performing face detection on a face candidate region; obtaining projection characteristics of the face candidate area on a characteristic pattern output by at least two layers of convolutional networks in the face detection model, fusing the projection feature of the first convolutional network and the projectionfeature of the second network to obtain a fusion feature. Compared with the prior art, the method has the advantages that the feature resolution ratio is high, more semantic information is carried, the small-scale face can be detected easily, and therefore when the fusion feature serves as the projection feature of the first convolutional network and face detection is conducted on the face candidate area according to the projection features of at least two layers of convolutional networks, the detection precision of the small-scale face can be improved.

Description

technical field [0001] The present application relates to the field of image processing, in particular to a face detection method and device. Background technique [0002] Face detection is an important research hotspot in the field of computer vision. Its main task is to detect the faces in the image from the image. [0003] At present, there are many traditional face detection methods, which improve the accuracy and speed of face detection from different angles. However, the detection accuracy for small-scale faces in images is still not high, for example figure 1 In the image shown, traditional methods are difficult to detect figure 1 Small-scale faces in the middle stand. [0004] It can be seen that in face detection, the detection of small-scale faces in images is an urgent problem to be solved. Contents of the invention [0005] In order to solve the above technical problems, the present application provides a face detection method and device. [0006] The embo...

AI Technical Summary

Problems solved by technology

However, the detection accuracy for small-scale faces in images is still not high, for example figure 1 In the image shown, traditional methods are difficult to detect figure 1 Small-scale human faces in the middle stand

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