Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for probing multi-source satellite image corresponding image point imaging intersection angles

A technology of satellite images and image points of the same name, which is applied in the field of satellite image photogrammetry and can solve problems such as the absence of effective methods

Active Publication Date: 2016-04-06
GUIZHOU TDT TECH CO LTD
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Since the RPC model is a sensor-independent model, it is very suitable for the joint processing of different satellite images. When the camera position is unknown when the sensor is photographed, it plays an important role in detecting the imaging intersection angle of the ground target and the weak intersection conditions of different images. But there is no effective method at present, and the present invention proposes to solve this difficult problem

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
  • Method for probing multi-source satellite image corresponding image point imaging intersection angles
  • Method for probing multi-source satellite image corresponding image point imaging intersection angles
  • Method for probing multi-source satellite image corresponding image point imaging intersection angles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The method of using RPC to detect the image point imaging intersection angle of multi-source satellite images with the same name is supported by global SRTM data, through the change of ground point elevation, calculate the change of ground point position vector, and then calculate the ground incident corresponding to any image point. angle, and the imaging intersection angle of the ground target corresponding to the image point of the same name in any two images. like figure 1 As shown, the method is implemented by the following steps:

[0055] Step 1: Using the RPC parameters attached to the satellite remote sensing image, using the global SRTM data for the elevation, and using the RPC model to calculate the ground point P corresponding to each image point p(R, C) 0 The geodetic longitude, latitude and elevation (L 0 , B 0 , H 0 ); geodetic coordinates P 0 (L 0 , B 0 , H 0 ) is calculated according to the RPC parameters and SRTM data by using the RPC model thro...

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 discloses a method for probing multi-source satellite image corresponding image point imaging intersection angles by utilizing remote position control (RPC), which is a detection method suitable for homogenous or heterogeneous satellite remote-sensing image corresponding image point imaging intersection angles based on rational polynomial RPC parameters and global shuttle radar topography mission (SRTM) data, and further counts angles of incidence of ground targets and imaging intersection angles of any two image corresponding image point ground targets by utilizing RPC models to count changes of ground point position vectors through elevation change. The method for detecting the multi-source satellite image corresponding image point imaging intersection angles can obtain imaging intersection angles of superimposed image corresponding points by utilizing RPC parameters under the situation that the positions of sensors are not known, and provides an effective method for detecting RPC model positioning imaging intersection angles, and can supply basic information for preventing a ground point coordinate solving ill-posed problem which is caused by weak intersection imaging in image geometric processing.

Description

technical field [0001] The invention relates to a satellite image photogrammetry method, in particular to a method for detecting the intersection angle of image points of the same name in multi-source satellite images when using a rational polynomial model for aerial triangulation or three-dimensional reconstruction. Background technique [0002] The base-height ratio or the imaging intersection angle reflects the stability of the intersection solution of the image points corresponding to the three-dimensional ground points. The base-to-height ratio is the ratio of the length of the photographic baseline to the height of the photographic stand. The photographic baseline is the distance between the lens centers at the instant of two consecutive exposures of the remote sensor during multi-station photography, which is generally controlled by the exposure time interval; the camera station height is the distance from the lens center to the ground along the plumb line, that is, t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/34
CPCG01C11/34
Inventor 谢国靖陈柱杨磊
Owner GUIZHOU TDT TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com