Light field acquisition device based on micro camera array and data processing method

Abstract

The invention provides a light field acquisition device based on a micro camera array and a data processing method. An optical lens array focuses the light on an image sensor array; the image sensor array receives the light passing through the lens array and exposes an acquired image under the control of a circuit control module; and a data transmission module transmits the acquired image data to a mobile terminal to process the image data and display the image. According to the device and the method, the spatial resolution of light field imaging equipment can be improved, the volume of the light field imaging equipment is reduced, the scene depth can be obtained, and the data processing flexibility is stronger.

Description

technical field [0001] The invention relates to the fields of computer vision, computational photography, optical engineering and embedded systems, in particular to the optical system design and circuit system design of a micro-camera array, and a processing method for light field data. Background technique [0002] The theory of light field imaging is a research hotspot in the field of computational photography. It has the advantages of first taking pictures and then focusing, adjustable depth of field expansion, acquisition of multi-viewpoint images, and acquisition of scene depth. Based on this, research institutions at home and abroad have designed a variety of light field imaging systems with their own characteristics, such as camera arrays, multi-aperture / coded aperture cameras, light field cameras based on microlens arrays, and light field microscopes. Medical and other fields have been initially developed. [0003] In recent years, the use of mobile devices to take ...

AI Technical Summary

Problems solved by technology

On the one hand, there is a compromise between spatial resolution and angular resolution in light field cameras based on microlens arrays. In order to obtain higher angular resolution, spatial resolution often needs to be sacrificed. For example, the light field camera Lytro is equipped with an 11-megapixel sensor. , but the spatial resolution of the generated light field image is only about 130,000 pixels, so the light field camera based on the microlens array cannot meet the user's demand for image spatial resolution; on the other hand, the current light field imaging equipment is large in size, For example, the diameter of the light field camera Lytro lens is about 50mm, and the thickness is about 100mm. The size of the light field camera Raytrix is ​​close to that of a SLR camera. Although the existing camera array can obtain images with high spatial resolution and angular resolution, it is bulky and the control system is complicated.

Therefore, the current light field imaging device cannot be used as a camera tool for mobile devices

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