US 2023/0274446 A1 · METHOD FOR MEASURING HUMIDITY AND ELECTRONIC DEVICE USING SAME

Abstract

A method for measuring humidity at long range using simplified equipment includes creating a formula according to a relationship between multiple sets of known optical flow feature vectors and a known humidity. First and second images are obtained, wherein the first image and the second image are captured as being in the same range of capture. A plurality of feature points in the first image is obtained and an optical flow feature vector for each of the feature points according to apparent changes in position of each feature point according to the second image are calculated. The degree of current humidity according to the optical flow feature vectors and the formula is thus obtained.

Claims10

Dependent claims

A method for measuring humidity, the method comprising:

establishing a conversion formula corresponding to multiple set of know image distortion and know humidity;
obtaining at least two consecutive images with the same shooting range;
preprocessing the two consecutive images to obtain a first digitized image and a second digitized image;
dividing the second digitized image into a plurality of image blocks;
obtaining a plurality of motion vectors of the plurality of image blocks based on the first digitized image and the plurality of image blocks, using full-search block matching algorithm;
adding up the plurality of motion vectors of the plurality of image blocks;
and
obtaining a current humidity based on the added motion vectors and the conversion formula.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/143,542Filed 4 May 2023

Priority

CN 202011340906.X25 Nov 2020

Published

31 Aug 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06T 7/231
Using block-matching: using full search
G06T 7/246
Analysis of motion: using feature-based methods, e.g. the tracking of corners or segments
G06T 7/11
Segmentation; Edge detection: region-based segmentation
G06T 7/70
Image analysis: determining position or orientation of objects or cameras

Family

Application17/186,891Continuation · filed 26 Feb 2021

Application17/898,954Continuation in part · filed 30 Aug 2022

Application18/143,542Continuation in part

Application17/898,954Continuation

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From the US filing history. Foreign family members aren’t listed.

Method for measuring humidity and electronic device using same

Life of this patent

Method for measuring humidity and electronic device using same

Life of this patent

Abstract

Claims10