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Electronic image stabilizing method and electronic image stabilizing system aiming at moving object detection under camera shake

A moving target and electronic image stabilization technology, which is applied to the parts of the TV system, TV, electrical components, etc., can solve the problem that the pixel coordinates of the image cannot be one-to-one, and achieve the effect of good robustness

Inactive Publication Date: 2011-06-15
BEIJING JIAOTONG UNIV
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Problems solved by technology

Camera shake will cause offset or rotation between adjacent images, resulting in a one-to-one correspondence between image pixel coordinates

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  • Electronic image stabilizing method and electronic image stabilizing system aiming at moving object detection under camera shake
  • Electronic image stabilizing method and electronic image stabilizing system aiming at moving object detection under camera shake
  • Electronic image stabilizing method and electronic image stabilizing system aiming at moving object detection under camera shake

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1, figure 1 It is a flow chart of the steps of an embodiment of the electronic image stabilization method for detecting moving objects under camera shake in the present invention, including the following steps: layering step S110, performing Gaussian blur on the original image of the reference frame image and the current frame image and reducing the resolution , are respectively the determined three-layer images of the reference frame image and the current frame image, including: the original image at the lowest layer with the highest resolution, the middle layer image, and the image at the highest layer with the lowest resolution; the first motion estimation step S120, Based on the block grayscale projecti...

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Abstract

The invention discloses an electronic image stabilizing method and an electronic image stabilizing system aiming at moving object detection under camera shake. The method comprises the following steps: carrying out guassian blur on the original image, lowering the resolution ratio and determining three layers of images; determining a first translational motion vector corresponding to an image with the lowest resolution ratio positioned at the highest layer based on a blocking gray projection method; compensating an interlayer image based on the acquired first translational motion vector; determining a second translational motion vector corresponding to the image positioned in the interlayer based on a block match algorithm; compensating the original image with the highest resolution ratiopositioned at the lowest layer based on the first translational motion vector and the second translational motion vector; and smoothing and compensating the motion by utilizing a feature matching method. The method and system provided by the invention have good robustness to the dynamic background, the noise, and the consistency of motion, rotation and background of large-sized images, have superiority on the image quality, the visual effect and the calculation speed, and satisfy the requirements of the moving object detection under the camera shake after the image is stabilized.

Description

technical field [0001] The invention relates to moving target detection under dynamic scene image sequences, in particular to an electronic image stabilization method and system for moving target detection under camera shaking. Background technique [0002] With the advancement of human society and the development of science and technology, using computers to realize human visual functions has become one of the most popular topics in the field of computers. The research on moving object detection technology is an important research topic in the field of computer vision. Moving target detection is to use digital signal processing and other technologies to properly process the image sequence containing moving information, detect and extract the foreground in the image sequence that is relatively moving with the background, and determine the position of the moving target. Navigation, military aiming, TV editing, medical image analysis and many other fields have been widely use...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/14
Inventor 刘渭滨邱亚钦户磊崇信毅邢薇薇李波
Owner BEIJING JIAOTONG UNIV
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