Remote sensing image preprocessing method

A remote sensing image and preprocessing technology, applied in the field of remote sensing, can solve the problems of increased preprocessing time and inability to quickly process multi-view images

Pending Publication Date: 2020-07-07
GEOVIS CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And existing method is to process by CPU, owing to be subjected to the limitation of the core number of single machine processor (desktop or general graphics work station has several cores at most, high-end workstation has at most ten cores...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Remote sensing image preprocessing method
  • Remote sensing image preprocessing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0040] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0041] Existing preprocessing methods mainly use multiple (core) CPUs of servers / workstations to perform parallel calculations of polynomials and interpolation. Limited by the number of CPU cores, th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a remote sensing image preprocessing method. The method comprises a step of carrying out orthographic correction on input remote sensing images and a step of carrying out Gram-Schmidt fusion on orthographically corrected images. For each waveband of each image, a plurality of computing threads are executed in parallel on a GPU; and the images comprise single-scene low-resolution multispectral images MSS and high-resolution single-waveband images PAN. The method is based on a CUDA (Computed Unified Device Architecture) universal parallel computing architecture. Accordingto the method, the remote sensing images are preprocessed by utilizing the parallel processing capability of the GPU; and the orthographic correction and the Gram-Schmidt fusion algorithms in processing are improved; and therefore, the parallel processing of the remote sensing images on thousands of threads on the GPU is realized, and processing speed is greatly increased.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular, to a method for preprocessing remote sensing images. Background technique [0002] Image preprocessing is the first and very important step in remote sensing applications, generally including geometric (ortho) correction, image fusion, image mosaic, atmospheric correction and other links. Among them, the low-resolution multispectral image MSS (usually four bands of red, green, blue and near-infrared) and the high-resolution single-band image PAN are respectively orthorectified based on geometric correction and digital elevation model. The processing flow of resampling and fusion to generate high-resolution multispectral images (referred to as "ortho + fusion") is one of the most basic and commonly used processing flows in image preprocessing. As the spatial resolution of remote sensing images increases to the meter level or even sub-meter level, the data volume of multispec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06T1/20G06T3/40G06T5/00
CPCG06T1/20G06T3/4061G06T5/003G06T2200/28G06T2207/10036
Inventor 姜河
Owner GEOVIS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap