Control method and control device for camera shooting

Abstract

The invention discloses a control method and a control device for camera shooting. The control device is provided with a main camera and an auxiliary camera of which the shooting direction forms a preset angle with that of the main camera. The control method comprises the following steps: detecting a plurality of two-dimensional face images among the images in the pictures shot by the main camera, positioning the positions of the eyes and the nasal tip in each two-dimensional face image, determining the three-dimensional face template matched with each two-dimensional face image based on the positions of the eyes and the nasal tip in each two-dimensional face image and the deep face information shot by the auxiliary camera, then respectively establishing the reorganized three-dimensional face characterizing the head attitude of the corresponding person in a multiple-person group scene based on the matched three-dimensional face template, and finally calculating to quantify the attention direction of each reorganized three-dimensional face so as to estimate the head attitude. By using the head attitude estimation to obtain the attention direction of each reorganized three-dimensional face, the invention can automatically adjust the shooting direction and / or the focal length of the main camera, thereby improving the efficiency and the accuracy of shooting adjustment.

Description

technical field The present invention relates to control technology, in particular to an imaging control method and an imaging control device. Background technique During the shooting process, it is usually necessary for the subject to be photographed to adjust its head posture so that both eyes are basically facing the lens of the camera. However, in a group scene that includes many people, the subjects may change their head postures accordingly due to the constant conversation with each other, so it is difficult to achieve as many subjects as possible whose heads are all facing the camera. lens. As a result, it is necessary to manually adjust the direction of the camera lens to capture an angle that can basically face the eyes of all the subjects being photographed, resulting in low shooting efficiency and accuracy. Contents of the invention In view of this, the present invention provides a camera control method and a camera control device, which can automatically ad...

AI Technical Summary

Problems solved by technology

However, in a group scene that includes many people, the subjects may change their head postures accordingly due to the constant conversation with each other, so it is difficult to achieve as many subjects as possible whose heads are all facing the camera. lens

As a result, you have to manually adjust the direction of the camera lens to capture the angle that can basically face the eyes of all the subjects, resulting in low shooting efficiency and accuracy

Images