An image reconstruction method using a three-dimensional image information acquisition device

Abstract

The invention relates to the technical field of three-dimensional camera shooting, in particular to a three-dimensional image information acquisition apparatus and an image reconstruction method therefor. The image information acquisition apparatus comprises a mirror surface, wherein a first region is arranged in the mirror surface; a first camera is arranged in the middle of the first region; four or more first light sources are arranged on the mirror surface and distributed on the outer edge of the first region; each first light source is an LED lamp; the first camera is used for acquiring light signals emitted by the first light sources; the first light sources and the first camera are all connected with a control unit; and the control unit is used for controlling each first light source to be switched on or off within a predetermined time and controlling the first camera to work within a corresponding time. The image information acquisition apparatus is simple in overall structure, high in speed, stable in working, high in precision and small in size, can be accepted by general consumers, and has a wide market prospect.

Description

technical field [0001] The invention relates to the technical field of three-dimensional imaging, in particular to an image reconstruction method using a three-dimensional image information acquisition device. Background technique [0002] With the emergence of various terminal products that support 3D output and display, the demand for 3D content has increased sharply. Taking 3D face information collection as an example, after obtaining the 3D model of the face, virtual animation design, virtual makeup, and plastic surgery design can be performed and many other uses. However, the existing 3D face data acquisition methods mainly use 3D scanning, such as laser scanning and structured light scanning technology, and the structure of related products is relatively complicated. It is unbearable and difficult to grasp, so a low-cost, fast and easy-to-use 3D face acquisition device is needed. [0003] To this end, people have proposed an accurate 3D reconstruction method based on...

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Problems solved by technology

However, the existing 3D face data acquisition methods mainly use 3D scanning, such as laser scanning and structured light scanning technology, and the structure of related products is relatively complicated. Unbearable and difficult to grasp, so a low-cost, fast and easy-to-use 3D face acquisition device is needed

[0003] To this end, people have proposed an accurate three-dimensional reconstruction method based on photometry. Photometry is a technical means in 3D vision. The 3D normal information of the surface can be recovered from the light and dark information changes of the surface, and then the 3D shape of the surface can be obtained. The existing photometric 3D reconstruction methods all adopt the assumption of point light source or parallel light source, that is, without considering the luminous characteristics of the light source itself, when the object distance When the light source is far away or the light source itself conforms to the characteristics of parallel light or point light source, the existing method can achieve better 3D reconstruction effect, but this requires high requirements on the light source itself, and in order to obtain parallel light, the light source itself needs a larger volume. For example, an LED array device is used; it cannot realize close-range 3D image reconstruction, the overall volume of the device is large, the production cost is high, and it is inconvenient to use

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