Video image display method and apparatus

A video image display method, comprising the steps of:

• obtaining a maximum field of view image taken by camera;
• detecting coordinates of all human faces in a horizontal direction and a vertical direction in the maximum field of view image;
• calculating the minimum value and the maximum value of the coordinates of all the human faces in the horizontal direction and the minimum value and the maximum value of the coordinates of all the human faces in the vertical direction;
• and
• on the basis of the minimum value and the maximum value of the coordinates of all the human faces in the horizontal direction and the minimum value and the maximum value of the coordinates of all the human faces in the vertical direction, adjusting the field of view of the camera to enable all persons being shot by the camera to be maximumly displayed in video images output by the camera.

A video image display apparatus, comprising:

• an acquisition module configured to obtain a maximum field of view image taken by a camera;
• a detection module configured to detect coordinates of all human faces in a horizontal direction and a vertical direction in the maximum field of view image;
• a calculation module configured to calculate the minimum value and the maximum value of the coordinates of all the human faces in the horizontal direction and the minimum value and the maximum value of the coordinates of all the human faces in the vertical direction;
• and
• an adjustment module configured to, on the basis of the minimum value and the maximum value of the coordinates of all the human faces in the horizontal direction and the minimum value and the maximum value of the coordinates of all the human faces in the vertical direction, adjust the field of view of the camera to enable all persons being shot by the camera to be maximumly displayed in video images output by the camera.