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A video image stabilization method for micro-nano satellites

A technology for video image stabilization and micro-nano satellites, which is applied in the field of video image stabilization of micro-nano satellites and can solve problems such as multiple sensors

Active Publication Date: 2019-03-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since this method uses many sensors, it is not suitable for micro-nano-satellites that have strict requirements on mass, volume, power consumption, and cost.

Method used

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  • A video image stabilization method for micro-nano satellites
  • A video image stabilization method for micro-nano satellites
  • A video image stabilization method for micro-nano satellites

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Embodiment Construction

[0062] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] refer to figure 1 , is a schematic flow chart of a video stabilization method for micro-nano-satellites of the present invention; the video stabilization method is as follows: obtain video information of a scene through a camera, and obtain camera motion information through a gyroscope; then combine the video information with the camera The motion information is fused to obtain the camera motion trajectory, and then the camera motion trajectory is smoothed by a smoothing algorithm to obtain a smooth camera motion trajectory. Finally, the smooth camera motion trajectory is used to perform image stabilization processing on the video information to obtain a stabilized video.

[0064] The specific steps of fusion processing are as follows:

[0065] (1) In the video information, extract n feature points of the current frame through the SIF...

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Abstract

The invention belongs to the technical field of video image stabilization, and discloses a video image stabilization method for a micro / nano-satellite. The video image stabilization method comprises the following steps of: obtaining video information of a scene through a camera, and obtaining camera motion information through a gyroscope; then, fusing the video information and the camera motion information so as to obtain a camera motion track, and smoothing the camera motion track through a smoothing algorithm so as to obtain a smooth camera motion track; and finally, performing image stabilization of the video information by utilizing the smooth camera motion track so as to obtain an image stabilization video. Less sensors are used in the method; the video image stabilization method is suitable for the micro / nano-satellite with strict requirements on the mass, the volume, power consumption, the cost and the like; furthermore, the image stabilization performance of the algorithm is also better; and thus, the video image stabilization method has a relatively wide application scene.

Description

technical field [0001] The invention belongs to the technical field of video image stabilization, and in particular relates to a video image stabilization method for micro-nano satellites. Background technique [0002] Micro-nano satellite (NanoSat) refers to a satellite with a mass of less than 10 kilograms and practical functions. It has strict requirements in terms of mass, volume, and power consumption. Due to the small size and light weight of micro-nano satellites, when shooting videos in space, they are easily affected by the harsh environment, which will cause the shaking of the satellite itself, and then drive the irregular movement of the camera, resulting in jitter in the final captured video. The shaking of the video not only affects the subjective quality of the video, but also limits the effective use of its post-information, and even directly affects people's analysis and judgment of the video content. Therefore, it is an important research direction in the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/21
CPCH04N5/21
Inventor 梅少辉万帅袁建平侯建文罗建军袁欣
Owner NORTHWESTERN POLYTECHNICAL UNIV