Internal and external view field mixing splicing method for large-width camera

Abstract

The invention discloses an internal and external view field mixing splicing method for a large-width camera, and relates to the technical field of aerial remote sensing photogrammetry. The method comprises the following steps: 1, selecting four lenses to establish a lens group, and performing the dividing of the same grid at the focal plane position of each lens; 2, placing the focal plane modulesin parallel on the grids of the four lenses, wherein each focal plane module is provided with a detector, and the detectors on different focal plane modules are placed at different positions according to the dividing of the grids, and all the detectors are the same; 3, simultaneously performing the exposing and imaging of the same object through the four focal plane modules, wherein the first focal plane module generates a first image, the second focal plane module generates a second image, the third focal plane module generates a third image, and the fourth focal plane module generates a fourth image; 4, creating a 5*4 blank grid square matrix, and embedding four images into the new grid square matrix to obtain a final full-frame image. The method gives consideration to the realization of large-width imaging and the constraint of small-structure volume space.

Description

technical field [0001] The invention relates to the technical field of aerial remote sensing photogrammetry, in particular to a hybrid splicing method for the inner and outer fields of view of a large-format camera. Background technique [0002] Aerial remote sensing has the advantages of strong autonomy, high precision, high efficiency, flexibility and convenience, and has become an effective means to obtain high-precision remote sensing data quickly. Remote sensing information has become an indispensable strategic and economic resource in the era of global earth observation, and it is playing a major role in all fields of human society development. increasingly important. [0003] There is a greater demand for large-format cameras in the field of aerial remote sensing mapping, but limited by the level of semiconductor technology and technology, the scale of camera detectors is limited. At present, the cost of large-scale chips such as 17k×14k and 30k×5k for single-chip d...

AI Technical Summary

Problems solved by technology

Invention patent CN 101692447B uses a single lens and rotating mirror to achieve splicing, which has the disadvantage that the long-term working stability of the motion mechanism is difficult to guarantee; Invention patents CN 102883095A and CN102905061A both use double lenses and beam splitting prisms to achieve splicing, and there is an energy loss for each image plane 50% deficiency, and there is a deficiency that adding prisms to the optical system increases the difficulty of optical system design

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