Image stabilization method and system based on straight line edge features
An edge feature and vertical edge technology, applied in the field of image stabilization methods based on linear edge features, can solve the problems of limited use environment, complex structure of high-performance mechanical gimbal, image stabilization effect and performance lower than optical image stabilization, etc.
Active Publication Date: 2020-10-30
上海鹰觉科技有限公司
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Problems solved by technology
The mechanical structure used in this method requires high process requirements and is expensive
In addition, the structure of the high-performance mechanical pan-tilt required for the stabilization of the pan-tilt image in this patent document is relatively complicated, and the product cost is relatively high; in addition, the volume of the pan-tilt is generally relatively large, and there are certain restrictions on the use environment
Due to the complexity and accuracy of the visual algorithm and the impact of camera shake on the image exposure quality of the current electronic image stabilization, the image stabilization effect and performance are lower than those of optical image stabilization and gimbal image stabilization
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[0128] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0129] Such as Figure 1 to Figure 7 As shown, the present invention provides a method for image stabilization based on straight line edge features, including the step of obtaining a straight line edge. The edge is detected to obtain the first straight line edge; step 2: according to the image obtained from the camera, by comparing the number of pixels in the connected domain of the image with the preset number of pixels, the second straight line edge is reserved; step 3: according to the image from the...
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The invention provides an image stabilization method based on linear edge features. The method comprises an application step of acquiring a video image; acquiring all the linear edges of the video image by a linear edge application step; obtaining the midpoint, the angle, and the length of each straight line of the linear edges; arranging all the linear edges according to the acquired lengths of the straight lines, wherein the video image includes a previous frame of video image and a current video image; matching the lengths and / or the angles of the straight lines of the acquired previous frame of video image and the current video image, not performing matching if a length difference and / or an angle difference are / is greater than a preset value(s); otherwise, performing matching. The image stabilization method and system based on linear edge features provide a sufficient number of edge features for a subsequent tracking task and recognition task, use three methods to simultaneously detect edges and then perform fusion.
Description
technical field [0001] The present invention relates to the field of target image stabilization, in particular, to an image stabilization method and system based on straight line edge features. Background technique [0002] In recent years, video surveillance equipment has been more and more widely used in the field of maritime surveillance. High-definition video images have brought great experience to maritime law enforcement officers. However, due to the special nature of the sea surface, the monitoring equipment installed on the ship is easy to shake as the ship shakes up and down, left and right, which will cause relatively large translation and rotation of the captured video screen. At this time, it is easy to cause law enforcement personnel to feel dizzy when watching the video, and it is also very unfavorable for operation. [0003] Traditional video image stabilization methods are based on the strategy of detecting interest points between adjacent frames, and then ...
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IPC IPC(8): G06T7/13G06T7/187G06T7/11G06T7/136
CPCG06T2207/10016G06T2207/20221G06T7/11G06T7/13G06T7/136G06T7/187
Inventor 林德银
Owner 上海鹰觉科技有限公司