A Universal Integrated Imaging and Recording Device Based on Light Field Compression Sampling

Abstract

The invention discloses a general integrated imaging and recording device based on light field compression sampling, which includes a lens module, a light field compression sampling module and a sensor module arranged in sequence; the sensor module is connected to a storage and output module; the storage and Both the output module and the light field compression module are connected to the calculation module. The present invention uses the optical mask and imaging lens to compress and sample the three-dimensional scene, taking into account the amount of sampled data and the requirements of light field information recovery, compared with the microlens array structure adopted by the existing integrated imaging recording end, it will cause a large amount of loss of three-dimensional scene information , the light field of the three-dimensional scene can be approximately completely restored from the recorded image of the present invention, which is convenient for subsequent processing to generate a micro-unit image array suitable for display by an integrated imaging three-dimensional display system with various parameters, and there is no limit to the parameters of the display terminal, which is a A general approach to integrated imaging and recording.

Description

technical field [0001] The invention belongs to the field of three-dimensional display, relates to a recording method for integrated imaging three-dimensional display, in particular to a general integrated imaging recording device based on light field compression sampling. Background technique [0002] Integrated imaging technology is a new naked-eye three-dimensional display technology with full parallax and continuous viewpoints. It adopts the principle of light reversibility, and the system can be divided into two parts: the recording end and the display end. The recording end mainly uses the microlens array to image the three-dimensional scene, and generates a series of tiny images containing parallax information. These microimages together form a microunit image array, which is recorded by the optical sensor. At the display end, the micro-unit image array acquired by the recording end is displayed on the display panel. According to the principle of light reversibility, ...

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Problems solved by technology

[0003] At present, in the existing research at home and abroad, the two-step recording conversion method is often used to solve the above problems, that is, the micro-unit image array obtained by the recording device is displayed in the computer through a virtual micro-lens array (the parameters are the same as the recording end), Then re-record through another set of virtual microlens array or virtual pinhole array, and then through scaling or other processing methods, finally get the micro-unit image array that matches the parameters of the display terminal and output it to the display terminal; the two-step recording conversion method exists The following disadvantages: 1) This method requires prior knowledge about the 3D scene (for example: depth information of objects in the scene), and such prior knowledge is usually unavailable; 2) The information source of this method is obtained by the recording end However, during the recording process at the recording end, due to the sampling effect of the microlens array, a large amount of information of the three-dimensional scene is lost in the recorded micro-element image array, so the light field of the three-dimensional scene cannot be fully restored, and it cannot be synthesized. High-quality micro-cell image arrays for display devices with various parameters

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