Nine-camera oblique photography system and use method thereof
An oblique photography and nine-camera technology, applied in the field of aerial photography, can solve problems such as poor modeling effect of complex modeling scenes and difficulty in meeting complex modeling requirements with oblique photography cameras, so as to reduce the total amount of shooting data and data processing time , the effect of improving flight efficiency
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Embodiment 1
[0033] A nine-camera tilt photography system, including three side-by-side camera groups, each camera group is composed of three cameras with coplanar long axes; the angles between adjacent two cameras in each camera group are equal, and adjacent The included angles between the two camera groups are equal; the minor axes of the centrally located cameras within each camera group are parallel to each other. Such as figure 1 As shown, there are nine cameras in this embodiment, and each camera includes an image sensor and a fixed-focus lens. Nine cameras are laid out in a 3×3 pattern; the nine cameras are fixedly connected through a rigid structure.
[0034] The three camera groups of this embodiment are in figure 1 In the horizontal distribution, the three cameras in each camera group are distributed vertically, that is, the leftmost camera group is composed of camera one 1, camera four 4, and camera seven 7, and the middle camera group is composed of camera two 2 and camera fi...
Embodiment 2
[0041] A nine-camera oblique photography system, on the basis of Embodiment 1, when the ground projection of the images taken by the middle camera is a rectangle, the ground projections of the images taken by the front, rear, left, and right cameras are trapezoidal, with the upper left, upper right, The ground projections of the images captured by the four lower left and lower right cameras are trapezoidal or trapezoidal.
[0042] The angle between two adjacent cameras in each camera group is the angle between the B surfaces of the two adjacent cameras. The included angle between two adjacent camera groups is the included angle between the A surfaces of the cameras in the adjacent two camera groups.
[0043] This embodiment satisfies f1 / cosα≤f3≤2f1; f1 / cosβ≤f2≤2f1; f1 / cosα≤f4≤2.5f1;
[0044] Among them, such as figure 2 As shown, α is the angle between two adjacent cameras in each camera group; image 3 As shown, β is the angle between two adjacent camera groups, f1 is the...
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