Aerial Photograph Image Pickup Method And Aerial Photograph Image Pickup Apparatus
First Claim
1. An aerial photograph image pickup method, comprising a first step of acquiring still images along an outward route and a return route respectively when a flying object flies in meandering manner up in the sky over an object range to be measured, a second step of preparing a stereo-image by relative orientation on one set of images adjacent to each other with regard to three images adjacent to each other in advancing direction, and of preparing another stereo-image by relative orientation on one more set of adjacent images and of preparing two sets of stereo-images, a third step of connecting two sets of stereo-images by using feature points extracted from a portion of an image common to two sets of stereo-images and the portion is an overlapped portion of said three images all together, a step of connecting all stereo-images in outward route direction and in return route direction according to images acquired in the first step by repeating the procedures of the second step and the third step, a step of selecting common tie points from the images adjacent to each other in the adjacent course and of connecting the adjacent stereo-images in the course, wherein prepares an unified stereo-image which covers the entire object range to be measured and is represented by common three-dimensional coordinate system.
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Abstract
The aerial photograph image pickup method comprises a first step of acquiring still images along an outward route and a return route respectively, a second step of preparing a stereo-image with regard to three images adjacent to each other in advancing direction, and of preparing another stereo-image by relative orientation on one more set of adjacent images and of preparing two sets of stereo-images, a third step of connecting two sets of stereo-images by using feature points extracted from a portion of an image common to the two sets of stereo-images, a step of connecting all stereo-images in the outward route direction and in the return route direction according to images acquired in the first step by repeating the second and third steps, and a step of selecting common tie points from the images adjacent to each other in the adjacent course and connecting the adjacent stereo-images in the course.
32 Citations
10 Claims
- 1. An aerial photograph image pickup method, comprising a first step of acquiring still images along an outward route and a return route respectively when a flying object flies in meandering manner up in the sky over an object range to be measured, a second step of preparing a stereo-image by relative orientation on one set of images adjacent to each other with regard to three images adjacent to each other in advancing direction, and of preparing another stereo-image by relative orientation on one more set of adjacent images and of preparing two sets of stereo-images, a third step of connecting two sets of stereo-images by using feature points extracted from a portion of an image common to two sets of stereo-images and the portion is an overlapped portion of said three images all together, a step of connecting all stereo-images in outward route direction and in return route direction according to images acquired in the first step by repeating the procedures of the second step and the third step, a step of selecting common tie points from the images adjacent to each other in the adjacent course and of connecting the adjacent stereo-images in the course, wherein prepares an unified stereo-image which covers the entire object range to be measured and is represented by common three-dimensional coordinate system.
- 8. An aerial photograph image pickup apparatus, comprising a flying object, a GPS device provided on said flying object, an image pickup device for taking an image below said flying object, and a control device for controlling the flight of said flying object and for controlling image pickup of said image pickup device, wherein said control device controls said flying object to fly in meandering manner and controls said image pickup device to acquire still images in an outward course and in a return course and controls so that the images have a predetermined overlapping ratio in advancing direction, and so that the image has a predetermined sidelapping ratio between the courses adjacent to each other, and a still image pickup position is measured by said GPS device, and results of measurement are acquired by associating with the still images.
Specification