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Fusion calculation imaging method of dual-camera compression measurement cooperative tensor representation

A technology of compression measurement and computational imaging, applied in the field of computational photography, can solve the problems of failing to improve the compression measurement item and panchromatic image adaptation, failing to fully and effectively use the spatial information of panchromatic images, etc., to maintain smoothness and spectral continuity properties, the effect of good convergence and robustness

Active Publication Date: 2021-03-26
NANJING UNIV OF SCI & TECH
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Problems solved by technology

These methods all transform the two-way observation model into a compressed measurement fidelity term, fail to improve the adaptation between the compressed measurement item and the panchromatic image, and fail to fully and effectively utilize the spatial information of the panchromatic image

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  • Fusion calculation imaging method of dual-camera compression measurement cooperative tensor representation
  • Fusion calculation imaging method of dual-camera compression measurement cooperative tensor representation
  • Fusion calculation imaging method of dual-camera compression measurement cooperative tensor representation

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Embodiment Construction

[0021] combine figure 1 , the implementation process of the present invention is described in detail below, and the steps are as follows:

[0022] Step 1: Establish a dual optical path compression measurement device to form space-spectrum information compression measurement;

[0023] Such as image 3 As shown in the above-mentioned dual optical path compression measurement device, one of them enters the coded aperture snapshot spectral imaging measurement device through the spectroscope, and establishes the data acquisition and measurement optical path of the coded aperture snapshot spectral imaging. The optical path includes an objective lens, a coded aperture , a bandpass filter, a relay mirror, a dispersive prism and a detector, the coded aperture template used in it is shown in Figure 4(b); the other path is reflected by the beam splitter and enters the optical path of the panchromatic camera, including the bandpass filter and detection device. Under the dual-camera com...

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Abstract

The invention discloses a fusion calculation imaging method of dual-camera compression measurement cooperative tensor representation, wherein the method comprises the steps: establishing a dual-optical-path compression measurement device, wherein one path is a coded aperture snapshot spectrum measurement device, and the other path is a panchromatic camera measurement device; constructing a forwardcompression sampling process through a compression coding aperture generated by a Bernoulli random matrix, offset caused by a dispersion prism and spectral response of a camera; carrying out third-order tensor representation on the two paths of measurement information, and establishing a dual-camera compression measurement cooperative tensor representation regularization model by integrating anisotropy weighted space-spectrum total variation prior constraints; and carrying out model iterative optimization solution by adopting an alternating direction multiplier method. According to the method, the tensor representation can fully mine cubic atlas characteristics of a hyperspectral image, space detail information provided by the panchromatic image can be effectively utilized, and the hyperspectral imaging quality and the space-spectrum characteristic retention capability are greatly improved through fusion calculation.

Description

technical field [0001] The invention belongs to the field of computational photography, in particular to a fusion computational imaging method of dual-camera compression measurement cooperative tensor representation. Background technique [0002] Hyperspectral images are three-dimensional data sets composed of dozens or even hundreds of continuous spectral bands. Compared with RGB color images, hyperspectral images have rich spectral information and detailed structures. It has a wide range of applications in the fields of environmental and military monitoring, agricultural planning, mineral exploration and medical testing. [0003] Traditional hyperspectral imaging methods, such as push-broom hyperspectral imagers and swing-broom hyperspectral imagers, can only capture a one-dimensional or two-dimensional spectral cube subset at a time, and a sequential scanning strategy is required to capture a complete 3D spectral data. Thus this imaging method is time-consuming and cann...

Claims

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Application Information

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IPC IPC(8): G01J3/28G06K9/62G06F30/20G06F17/15G06F17/12G06F111/04G06F111/10
CPCG01J3/2823G06F30/20G06F17/15G06F17/12G06F2111/04G06F2111/10G06F18/25
Inventor 韦志辉梁正辉肖亮徐洋
Owner NANJING UNIV OF SCI & TECH
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