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360-degree image synchronization acquisition system

An acquisition system and image synchronization technology, applied in image communication, TV system components, TV, etc., can solve the problems of not being able to provide uniform lighting conditions and a small number of cameras, and achieve sufficient brightness and fast synchronization trigger speed , good imaging effect

Inactive Publication Date: 2017-03-22
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since most of them use the photometric stereo (Photometric stereo) algorithm, the number of cameras used is relatively small, and the light source is LED point light source, which cannot provide a good uniform lighting condition

Method used

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] First, design a cylindrical metal support frame, figure 1 The middle metal frame is made of aluminum alloy truss. The top ring and bottom ring of the truss are connected by 8 arc-shaped parts through bolts. There are a large number of triangular structures in the truss, which can reduce the weight of the frame and ensure that the frame can withstand a lot of tension. , The structure is stable and easy to build. The outer diameter of the cylindrical bracket is 6.2m, and the height of the four columns is 2.7m. Around and on top of the cylindrical frame is covered with white diffuse reflection photographic paper, the surface of the photographic paper is close to the ideal Lambertian surface, and the reflected light has the same brightness in all directions. Install 16 flashes at equal intervals on the top and bottom of the frame. When shooting, th...

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PUM

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Abstract

The invention discloses a 360-degree image synchronization acquisition system which can provide a uniform illumination environment and simultaneously acquires a 360-degree image, and belongs to the field of image acquisition devices. The system comprises a support frame, image acquisition devices, a flashlight group, a rack, a spherical holder, a synchronous trigger and a control host. The surface of the support frame is covered by diffuse reflection photography paper to form a closed environment. The flashlight group is arranged on the support frame. The rack is placed in the support frame. The image acquisition devices are fixed on the rack through the spherical holder. Each image acquisition device is connected with the synchronous trigger and the control host. The system can instantly acquire the 360-degree high-definition image of a human body or a scene, and can be applied to three-dimensional reconstruction of video game models, computer vision data acquisition and other fields.

Description

technical field [0001] The invention relates to an image acquisition system which can provide a uniform illumination environment, and under the illumination environment, synchronously control a camera and collect a 360-degree image of a scene. The invention belongs to the field of image acquisition devices. Background technique [0002] In recent years, computer vision has developed rapidly, and at the same time, virtual reality and augmented reality technologies have received a lot of attention. Panoramic video and 3D modeling technologies have gradually played an increasingly important role in film and television animation, game production, and e-commerce. At present, the main 3D reconstruction techniques are divided into active reconstruction and passive reconstruction. Active reconstruction is to obtain the geometric structure of the object by emitting active light sources such as laser or structured light, while the passive reconstruction technology recovers the three-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/247H04N5/225H04N23/90
CPCH04N23/56H04N23/60H04N23/90
Inventor 曹汛季胜裕金威朱昊
Owner NANJING UNIV
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