High-spatial-resolution optical field acquisition device and image generation method

A technology of high spatial resolution and light field acquisition, which is applied in image communication, TV, color TV parts, etc., can solve the problems of low signal-to-noise ratio of collected signals, poor quality of light field data, etc., and achieve high spatial resolution , relieve storage pressure, and promote the development of network storage and communication applications

Inactive Publication Date: 2018-05-29
NORTHWESTERN POLYTECHNICAL UNIV
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This results in a low signal-to-noise ratio of the acquir...

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  • High-spatial-resolution optical field acquisition device and image generation method

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0028] The present invention provides a light field data acquisition device combining a microlens array and a random convolution CMOS image sensor, comprising: a main lens, used to refract the object beam into the camera; a microlens array, used to separate the The angle and position information of the light on the mirror plane; a random convolution CMOS image sensing sensor for collecting encoded and compressed light field signals.

[0029] The acquisition device of the present invention places a microlens array between the main lens and the random convolution CMOS image sensor, the microlens array is parallel to the image sensor, and can completely cover the photosensitive surface of the image sensor.

[0030] The microlens array is placed behind the main lens (closer to ...

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Abstract

The invention provides a high-spatial-resolution optical field acquisition device and an image generation method; the method comprises the following steps that a micro lens array is placed between a main lens and a compression coding sensor; the micro lens array is parallel to the compression coding sensor, is perpendicular to an optical axis of the main lens and completely covers a photosensitivesurface of the compression coding sensor, wherein each micro lens is capable of focusing and imaging, and imaging areas of the different micro lenses do not overlap with each other in the plane of the compression coding sensor; and a target scene is recorded by the compression coding sensor after the real image of the main lens is converged again through the micro lens array. According to the method and device, high-spatial-resolution optical field data are obtained while optical field angle resolution and light flux are not reduced; data volume of a light field can be reduced, the storage pressure is relieved, so that development of light field video shooting and network storage and propagation application of the light field data is promoted.

Description

technical field [0001] The invention relates to the fields of computer vision, computational photography and optical engineering, in particular to a light field acquisition device and a high-resolution light field image generation method using a compression coding sensor combined with a microlens array. Background technique [0002] The theory of light field imaging has brought revolutionary progress to the field of digital imaging. Different from the projection theory model of traditional imaging that only records the light intensity distribution on the sensor plane, the light field imaging model uses a novel optical system to correspond the light in the scene to the sensor pixels according to a given relationship. The light field acquisition device can simultaneously collect the position and angle information of light, and on this basis, generate novel images through digital processing. However, compared with traditional imaging techniques, light field imaging techniques ...

Claims

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Application Information

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IPC IPC(8): H04N13/204H04N13/207H04N13/161H04N13/156H04N13/106H04N5/374
CPCH04N25/76
Inventor 周果清瞿婉新肖照林其他发明人请求不公开姓名
Owner NORTHWESTERN POLYTECHNICAL UNIV
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