SURVEY DATA PROCESSING DEVICE, SURVEY DATA PROCESSING METHOD, AND PROGRAM THEREFOR

• US 20160217589A1
• Filed: 01/28/2016
• Published: 07/28/2016
• Est. Priority Date: 01/28/2015
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Topcon
• Original Assignee: Kabushiki Kaisha Topcon
• Inventors: Sasaki, Daisuke, Fukaya, Nobuyuki, Sasaki, Takeshi, Ootani, Hitoshi, Anai, Tetsuji
• Granted Patent: US 10,331,972 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B64U 2101/30 for imaging, photography or videography
• CPC Class Codes: B64U 2201/104 using satellite radio beacon positioning systems, e.g. GPS
• CPC Class Codes: G01C 11/06 by comparison of two or more pictures of the same area
• CPC Class Codes: G01C 21/005 with correlation of navigation data from several sources, e.g. map or contour matching G01C21/30 takes precedence
• CPC Class Codes: G06T 2207/10044 Radar image
• CPC Class Codes: G06T 2207/20076 Probabilistic image processing
• CPC Class Codes: G06T 2207/30241 Trajectory
• CPC Class Codes: G06T 7/248 involving reference images or patches

Abstract

A technique for making multiple still images, which are photographed by a traveling mobile body, and the traveled route of the photographing correspond to each other, is obtained. A survey data processing device includes an input unit 101, an image processing unit 102, and a synchronous processing unit 103. The input unit 101 is configured to receive image data of multiple still images, which are photographed from a mobile body flying, and receive flight data, in which a flight route of the mobile body is measured. The image processing unit 102 is configured to estimate a flight route of the mobile body based on changes in positions of feature points included in the multiple still images on a screen. The synchronous processing unit 103 is configured to specify a matching relationship between the flight route of the flight data and the estimated flight route.

Claims

1. A survey data processing device comprising:

an input unit configured to receive image data of multiple still images, which are photographed from a mobile body flying, and receive flight data, in which a flight route of the mobile body is measured;

a flight route estimating unit configured to estimate a flight route of the mobile body based on changes in positions of feature points included in the multiple still images on a screen; and

a matching relationship specifying unit configured to specify a matching relationship between the flight route of the flight data and the estimated flight route.

2. The survey data processing device according to claim 1, wherein the flight route estimating unit is configured to perform a processing for obtaining a moving-direction vector, which characterizes a movement of the feature point on the screen, and a processing for estimating the flight route based on the moving-direction vector.

3. The survey data processing device according to claim 1, wherein the matching relationship specifying unit is configured to calculate a location of the estimated flight route so that a total of distances between vectors for indicating the estimated flight route and vectors for indicating the flight route of the flight data will be minimum.

6. The survey data processing device according to claim 2, wherein the matching relationship specifying unit is configured to calculate a location of the estimated flight route so that a total of distances between vectors for indicating the estimated flight route and vectors for indicating the flight route of the flight data will be minimum.

4. A survey data processing method comprising:

receiving image data of multiple still images, which are photographed from a mobile body flying, and flight data, in which a flight route of the mobile body is measured;

estimating a flight route of the mobile body based on changes in positions of feature points included in the multiple still images on a screen; and

specifying a matching relationship between the flight route of the flight data and the estimated flight route.

5. A computer program product comprising a non-transitory computer-readable medium storing computer-executable program codes, the computer-executable program codes comprising program code instructions for:

receiving image data of multiple still images, which are photographed from a mobile body flying, and flight data, in which a flight route of the mobile body is measured;

estimating a flight route of the mobile body based on changes in positions of feature points included in the multiple still images on a screen; and

specifying a matching relationship between the flight route of the flight data and the estimated flight route.