An intelligent display system that automatically tracks head posture
A head posture and automatic tracking technology, which is applied in the field of intelligent recognition, can solve the problems of large impact of lighting on facial expressions, high image quality requirements, and small amount of calculation, and achieve the effects of protecting eyesight, improving usability, and reducing erroneous swings
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Embodiment 1
[0038] When using a computer, the user is most likely to have a tilted head posture, which causes the face to deviate from the best line of sight position. The tilting posture refers to the posture in which the head axis deviates from the vertical position when the head swings left and right, such as Figure 4 shown in the middle figure. The system provided in this embodiment can make the display follow the change of the tilting posture of the head of the human body to realize automatic tracking, so that the display can always maintain the best line of sight position with the head.
[0039] The system includes an image acquisition module, a visual algorithm processing module and a display control module. The image acquisition module is a monocular camera 1 with a resolution of 640×480; the visual algorithm processing module is composed of a computer host and its peripheral circuits; the display control module includes a display, a tilt steering gear 5, a steering gear control...
Embodiment 2
[0059] In practice, the head posture is the coupling of roll, pitch and side rotation. In order to further improve the performance of the system, the adjustment of the pitch posture is added in this embodiment (the side rotation posture is not a conventional posture when using a computer, here ignore); that is, the roll attitude and the pitch attitude are considered at the same time, and the attitudes of these two degrees of freedom are analyzed independently. The pitching attitude refers to the attitude in which the angle formed by the head axis and the computer plane is not zero, such as Figure 4 shown in the figure on the right.
[0060]Based on this, in the system described in Embodiment 1, a pitch steering gear, a binocular camera pair formed by the left eye camera 2 and the right eye camera 3, and the pitch steering gear are added. The resulting intelligent display system that automatically tracks the head posture is as follows: figure 2 As shown, the system can make...
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