Method and device for reconstructing three-dimensional model of high dynamic range texture

Abstract

The embodiment of the invention provides a method for reconstructing a three-dimensional model of high dynamic range texture, comprising the following steps: adopting shooting devices arranged in a grouped encircling array mode to shoot multi-viewpoint and multiple exposed images and / or videos; restoring response curves of the shooting devices; performing exposure alignment on the images shot at different exposure time so as to restore the three-dimensional model based on the response curves of the devices; and restoring high dynamic texture information by calculating color information of each vertex of a grid. The embodiment of the invention also discloses a device for reconstructing the three-dimensional model of high dynamic range texture, which is composed of an acquisition module, a response curve restoring module, an exposure alignment module and a reconstructing module. The method and the device for reconstructing the three-dimensional model of high dynamic range texture can realize multi-viewpoint stereo reconstruction for the three-dimensional model of high dynamic range under the premise of not lowering geometric reconstruction precision of the model without additionally updating the hardware equipment.

Description

technical field [0001] The invention relates to the fields of computer application technology and signal processing, in particular to a reconstruction method and device for a high dynamic range texture three-dimensional model. Background technique [0002] With the rapid development of multimedia technology and the improvement of people's demand for multimedia services, stereoscopic image and stereoscopic video technology have shown more and more application requirements. Stereoscopic images and stereoscopic videos can enable viewers to obtain a real three-dimensional sense and bring them an immersive feeling, so they are more advanced and promising than traditional images and videos. [0003] Among the multi-stereoscopic video generation methods, especially in the free-viewpoint video technology, the solution with the best performance and effect is the acquisition and rendering method based on 3D model reconstruction. A 3D model is a digital representation of a real object...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this solution is that the equipment needs to be invested too much, and the special camera cannot be widely used in various applications for the time being.

In this scheme, the main difficulty is that for dynamic scenes, high-precision motion prediction is difficult to complete, resulting in misalignment during image fusion

In short, the existing technical solutions cannot be directly applied to the multi-view reconstruction technology

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