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Device and method for high-resolution large-viewing-field aerial image forming

A high-resolution, imaging device technology, applied in the direction of TV, color TV, image communication, etc., can solve the problem of image sequence continuity reduction and achieve high-resolution effects

Inactive Publication Date: 2009-09-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

[0004] At present, in order to quickly obtain high-resolution large-field aerial video images, the method of splicing multiple image sequences shot separately is used, and the coherence between the image sequences is relatively reduced.

Method used

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  • Device and method for high-resolution large-viewing-field aerial image forming

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Embodiment Construction

[0032] The present invention will be further described in detail below in combination with specific embodiments.

[0033] refer to figure 1 As shown, the high-resolution large-field-of-view aerial imaging device includes an image acquisition system for acquiring images; the video signals of the image acquisition system are directly stitched according to the overlapping ratio of two adjacent images. It is an image processing system that stitches multiple images into a high-resolution large-field aerial image.

[0034] refer to figure 2 , image 3 As shown, the image acquisition system as a whole is curved with four high-resolution cameras 10, 20, 30, and 40. The image processing system is a DSP, which is connected to the four cameras, and the DSP collects video signals from the four cameras.

[0035] The multiple cameras of the image acquisition system are placed in an arc as a whole according to the horizontal and vertical image field angles of the cameras, that is, to en...

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Abstract

The invention discloses a device and a device for high-resolution large-viewing-field aerial image forming. The device comprises four cameras with high resolution, a DSP, a displayer and a bracket. A photographing method is realized in a DSP embedded development system and is carried out according to the following steps: firstly, adjacent image overlap proportion is obtained by utilizing system hardware parameters for calculation or calibration, and then direct cutting and splicing are carried out; secondly, a small malposition resulted from the direct splicing is corrected by the typical value removing normalized gray scale correlation calculation method; and finally, according to color difference typical value of splicing regions, differential complement method is adopted for fully correcting the images so as to obtain a high-resolution large-viewing-field aerial image. The invention ensures the large viewing field and realizes the high resolution so that the image forming device can photograph the high-resolution large-viewing-field aerial image at one time.

Description

technical field [0001] The invention relates to a high-resolution large-field aerial imaging device and a method thereof, which are specifically used for obtaining high-resolution large-field aerial images. Background technique [0002] Aerial photography has a wide range of applications in battlefield reconnaissance, forest fire monitoring, resource investigation, environmental pollution monitoring, and natural disaster area assessment. In order to obtain a broad and complete real-time target scene map, high-resolution and large-field-of-view imaging methods are urgently needed. However, in the current vision system, large field of view and high resolution cannot be achieved at the same time. To obtain high-resolution images, the requirement of large field of view needs to be sacrificed; otherwise, the resolution needs to be reduced to obtain a large field of view. . [0003] Each ommatidium in the parallel compound eyes of insects is relatively independent and faces diff...

Claims

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Application Information

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IPC IPC(8): H04N1/387H04N5/225G06T5/50
Inventor 曹传东徐贵力姚杰谢非倪炜基吕东岳董书莉
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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