Automated conversion of two-dimensional hydrology vector models into valid three-dimensional hydrology vector models

Patent metadata

Field	Value
Publication number	US-9922252-B2
Application number	US-201715490866-A
Country	US
Kind code	B2
Filing date	Apr 18, 2017
Priority date	Jul 1, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A system for automated conversion of two-dimensional hydrology vector models into valid three-dimensional hydrology vector models, comprising a vector extraction engine that retrieves vectors from, and sends vectors to, a vector storage, a DSM server that retrieves a DSM from a DSM storage and computes a DSM from stereo disparity measurements of a stereo pair retrieved from a raster storage, and a rendering engine that provides visual representations of images for review by a human user, and a method for automated hydrology vector model development utilizing the system of the invention.

First claim

What is claimed is:

1. A system for automated conversion of two-dimensional hydrology vector models into valid three-dimensional hydrology vector models, comprising:
a computing device comprising a processor, a memory, and a plurality of programming instructions stored in the memory and operable on the processor, wherein the plurality of programming instructions, when operating on the processor, cause the processor to execute:
a hydrology vector server configured to retrieve vectors from, and send vectors to, a vector storage such as a vector database;
a digital surface model server configured to compute a digital surface model from stereo disparity measurements of a stereo image pair retrieved from a raster storage;
a rendering engine configured to generate a visual representation in the form of three-dimensional hydrology vector model by projecting a two-dimensional hydrology vector model onto the digital surface model, wherein a digital elevation model is generated.

2. The system of claim 1 , further comprising a viewer device adapted to receive information from other components of the system and present the information for review by a human user.

3. The system of claim 1 , further comprising a plurality of input devices adapted to receive input from a human user and provide the results of the input to other components of the system.

4. A method for automated three-dimensional hydrology model development, comprising the steps of:
receiving, at a hydrology vector server, a plurality of input images;
extracting a plurality of two-dimensional hydrology vectors from at least a portion of the plurality of input images;
computing a digital surface model from stereo disparity measurements of a stereo image pair retrieved from the plurality of input images; and
computing a three-dimensional hydrology vector model by projecting the two-dimensional hydrology vectors onto the digital surface model, wherein a digital elevation model is generated.

Assignees

• Digitalglobe Inc

Inventors

• Grodecki Jacek
• Malitz Seth

Classifications

• G06T17/05 Primary

  Geographic models · CPC title

• G06K9/0063 Primary

  Physics · mapped topic