Light field collecting device with changeable angle sampling number

Abstract

The invention provides a light field collecting device with the changeable angle sampling number. A plurality of micro lenses are evenly distributed to form a micro lens array, and a photosensitive surface of an image sensor is completely covered; a moving tray embedded in a sliding rail is used for fixing the micro lens array and can move back and forth between the main lens and the image sensor in the light axis direction of the image sensor. A micro lens distance adjusting ring is coupled precisely with a tray pushing rod, when the micro lens distance adjusting ring rotates, the tray pushing rod drives the moving tray to move in the light axis direction of the image sensor, and two springs are connected between the moving tray and a camera. A digital displacement sensor is fixedly connected with the tray pushing rod to sense the displacement changes of the lens array and transmit the displacement changes into a digital control unit. The light field collecting device can continuously adjust the angle sampling number of a light collecting field, can obtain the high spatial resolution when the angle resolution is low and can obtain more field three-dimensional information under the setting of the high angle resolution.

Description

technical field [0001] The invention relates to the fields of computer vision and optical engineering, in particular to a light field collection 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, etc...

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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