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Near-infrared facula projection multi-focal-length micro-lens array remote sensing light field imaging system

A technology of microlens array and near-infrared light, which is applied in stereoscopic systems, components of TV systems, image analysis, etc., can solve problems such as inability to effectively reconstruct objects with few textures, and improve 3D reconstruction effects, reduce costs, and improve accuracy Effect

Pending Publication Date: 2020-09-11
PEKING UNIV
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Problems solved by technology

But the first is the realization of its physical device, using precise light field imaging to realize accurate 3D reconstruction of weakly textured and textureless objects in the field of remote sensing and photogrammetry, and solve the problem that conventional remote sensing photogrammetry methods cannot effectively reconstruct objects with few textures

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  • Near-infrared facula projection multi-focal-length micro-lens array remote sensing light field imaging system
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  • Near-infrared facula projection multi-focal-length micro-lens array remote sensing light field imaging system

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] see figure 1 , the near-infrared spot projection light field camera of the multi-focal-length microlens array provided by the embodiment of the present invention is now described:

[0029] The near-infrared spot projection device 100 includes a spherical reflector 110 arranged along the optical path direction, a near-infrared LED light source 120, a condenser lens 130, a projection sheet 140, and a projection objec...

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Abstract

The invention discloses a near-infrared facula projection multi-focal-length micro-lens array remote sensing light field imaging system, which is characterized by comprising a near-infrared facula projection device (100) and a light field imaging assembly (200). The near-infrared light spot projection device (100) is used for scattering near-infrared light spots on an observation target and increasing texture information of a target image; and the light field imaging assembly (200) is used for imaging the target scene light with the texture information. The system can improve the novel remotesensing light field imaging of a target depth-of-field detection range, and especially can achieve the surface reconstruction of a weak texture target.

Description

technical field [0001] The invention relates to a multi-focal-length microlens array remote sensing light field imaging system for near-infrared spot projection, a new remote sensing light field imaging method that can improve the detection range of the target depth of field, especially capable of realizing surface reconstruction of remote sensing weak texture targets, the main design A light field camera structure with multi-focal-length microlens array projected by near-infrared spot is proposed, which can effectively improve the camera's observation depth of field range. Secondly, with the help of the near-infrared spot projection device, the eye-safe near-infrared band texture pattern can be projected on the surface of the measured object, which can increase the texture information when the surface of the detected target lacks texture information, and improve the accuracy of the three-dimensional reconstruction of the weak texture detection target . Background technique ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B30/27G01C11/02
CPCG02B30/27G01C11/02H04N23/11H04N13/254H04N13/271H04N13/232H01L27/14627G06T15/55G06T7/521G06T7/557G01B11/25G06T7/529
Inventor 晏磊赵守江杨鹏林沂赵红颖姜凯文张飞舟范闻捷赵海盟杨锦发刘帆
Owner PEKING UNIV
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