Switchover imaging photographic device and method

Abstract

The invention relates to a switchover imaging photographic device which comprises an imaging photographic system which does not comprise light sensing devices, a micro lens array, switchover imaging photographic lenses and light sensing devices. The micro lens array is arranged on an imaging position of the imaging photographic system and fully covers an image plane of the imaging photographic system. Multiple sets of switchover imaging photographic lenses with different focal distances are arranged behind the micro lens array according to the principle that the focal distances of adjacent lenses are different and emitting light rays of the micro lens array are fully covered. The switchover imaging photographic lenses image the image plane of the imaging photographic system on the light sensing devices after the image plane is kept equal or amplified according to the geometry conjugation relationship. Each switchover imaging photographic lens corresponds to a light sensing device. Image stacking zones of all the light sensing devices are spliced and compounded to be an integral image. With the imaging photographic system, the micro lens array, the switchover imaging photographic lenses and the light sensing devices are combined to obtain an image which has equal or higher image quality and resolution and high geometric precision and a large complete image.

Description

technical field [0001] The invention belongs to the technical field of optical imaging, and relates to a device for switching imaging and photographing a system image plane by using the principle of optical object imaging to ensure that the original resolution remains unchanged or achieve a higher resolution. Background technique [0002] Currently widely used high-resolution aerial photography cameras all use film as the photosensitive device. The photosensitive area of ​​the film is large and the sensitivity is high, which is unmatched by digital cameras. However, due to the strong functionality and effectiveness of digital camera systems, image analysis and real-time transmission of captured images can be performed, which is the development trend of high-resolution aerial photography cameras today. Therefore, in order to achieve the effectiveness of large-format image shooting and use the original aerial photography equipment, it needs to be digitally transformed. [000...

AI Technical Summary

Problems solved by technology

[0003] At present, the following two problems exist in the process of transforming aerial photography cameras: 1. The existing digital photosensitive device does not have a photosensitive area of ​​80mm×80mm or larger at one time, and the photosensitive device with a larger area has a higher frame rate. The lower it is, the less it can meet the needs of aerial photography

2. Digital transformation of sensors for existing aerial photography cameras, whether it is the seamless stitching technology of multiple CCD or CMOS sensors, or the method of shrinking imaging photography stitching (such as patent 101059598, a secondary imaging photography method and device), Neither can completely cover the imaging area of ​​the original aerial photography camera, or not reduce the imaging resolution of the original aerial photography camera

This makes a truly effective digital transformation of aerial photography cameras impossible

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