Target drop point measurement method based on building contour features

The invention relates to the technical field of drop point measurement, and provides a target drop point measurement method based on building contour features, and the method comprises the steps: measuring a building contour point coordinate and a predicted drop point coordinate through an RTK dotti...

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Hauptverfasser:	ZHANG YONGDONG, GU JUNHAO, TIAN YE, ZHAO ZINIAN, YE HU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING GYROSCOPIC INSTRUMENTS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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creator	ZHANG YONGDONG GU JUNHAO TIAN YE ZHAO ZINIAN YE HU
description	The invention relates to the technical field of drop point measurement, and provides a target drop point measurement method based on building contour features, and the method comprises the steps: measuring a building contour point coordinate and a predicted drop point coordinate through an RTK dotting device; selecting a shooting position of a camera, immediately stopping recording after flame appears in a camera picture, and calculating to obtain the number n of inversely deduced images according to the movement time of a target in a camera view field and a camera frame rate; screening the target detection range through a frame difference method; processing a differential image by combining an Otsu threshold segmentation algorithm, manually screening in sequence, selecting a key frame image at the moment that a target passes through a roof, and clicking and selecting a position of a building body contour point and a position of an actual target drop point on the image; calculating actual drop point coordinat
format	Patent
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selecting a shooting position of a camera, immediately stopping recording after flame appears in a camera picture, and calculating to obtain the number n of inversely deduced images according to the movement time of a target in a camera view field and a camera frame rate; screening the target detection range through a frame difference method; processing a differential image by combining an Otsu threshold segmentation algorithm, manually screening in sequence, selecting a key frame image at the moment that a target passes through a roof, and clicking and selecting a position of a building body contour point and a position of an actual target drop point on the image; calculating actual drop point coordinat</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; GYROSCOPIC INSTRUMENTS ; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; SURVEYING ; 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subjects	CALCULATING COMPUTING COUNTING GYROSCOPIC INSTRUMENTS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
title	Target drop point measurement method based on building contour features
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