Light Field Acquisition Device with Variable Angle Sampling Number

Abstract

The invention provides a light field acquisition device with variable angle sampling number. The microlens array adopts several microlenses evenly arranged to completely cover the photosensitive surface of the image sensor; the mobile tray embedded in the sliding guide rail fixes the microlens array , can move back and forth between the main lens and the image sensor along the optical axis of the image sensor; the microlens distance adjustment ring is precisely coupled with the tray push rod, when the microlens distance adjustment ring rotates, the tray push rod drives the moving tray along the image sensor To move in the direction of the optical axis, two springs are connected between the moving tray and the camera; the digital displacement sensor is fixedly connected to the tray pushing rod to sense the displacement change of the microlens array and transmit it to the digital control unit. The invention can continuously adjust the angular sampling number of the collected light field, can obtain higher spatial resolution when the angular resolution is lower, and can obtain more scene three-dimensional information when the angular resolution is set higher.

Description

technical field [0001] The invention relates to the fields of computer vision and optical engineering, in particular to a light field acquisition device. Background technique [0002] The development of light field imaging theory breaks through many limitations of traditional imaging technology. Because the corresponding light field acquisition device can record the position and angle information of the light, its imaging process subverts the projection theoretical model of traditional imaging that only records the light intensity distribution on the sensor plane. The characteristic of light field imaging is that light gathering and projection can be digital processes. Therefore, its imaging effect is no longer determined by the imaging parameters during data collection, but can be flexibly set according to imaging needs. [0003] Light field acquisition equipment is mainly divided into microlens array light field cameras, camera array systems, mask light field cameras, et...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the prior art that the number of angle samples is difficult to flexibly adjust, the present invention provides a set of light field acquisition devices with variable angle samples for the characteristic that the number of angle samples of the focused light field camera is related to the design of imaging optical path parameters

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