Multi-mode real-time electronic image stabilizing system

Abstract

The invention relates to a multi-mode real-time electronic image stabilizing system, belonging to the image processing field. The system mainly comprises a digital model and preprocessing module, an interframe image stabilizing module and an intraframe image stabilizing module. The interframe image stabilizing module comprises an interest region based global motion estimation unit, a motion vector filtering unit, a motion determining unit and a motion compensation unit; the digital model and preprocessing module is connected with the interest region based global motion estimation unit in the intraframe image stabilizing module, the interest region based global motion estimation unit is respectively sequentially connected with the motion vector filtering unit and the intraframe image stabilizing module, the motion vector filtering unit, the motion determining unit and the motion compensation unit in order, and the motion compensation unit is respectively connected with the intraframe image stabilizing module and external DSP (digital signal processing) parallel processing. The system provided by the invention has the characteristics of multiple modes, high accuracy, instantaneity, high frequency vibration resistance and intellectualization and also has the advantages of simple structure, convenience in integration and easiness in operation.

Description

Technical field [0001] The invention relates to a multi-mode real-time electronic image stabilization system, which is used to complete high-precision and real-time processing of video images under different platforms and environments, and belongs to the field of image processing. Background technique [0002] Since the 21st century, electronic image stabilization technology has been widely used in military fields, civil aerial surveys and photography systems due to its easy operation, high precision, small size, low price, low energy consumption, and intelligence. However, the traditional electronic image stabilization theory and technology have some problems: 1) The environment and characteristics of the motion platform are complex, the imaging conditions are changeable, and it is very difficult to establish a mathematical model between various motions and images; 2) The complexity of the actual shooting scene And diversity, resulting in the versatility and poor real-time perfo...

AI Technical Summary

Problems solved by technology

There are many studies on electronic image stabilization algorithms. However, these methods ignore the relationship between the platform and the image, and ignore the influence of the background and objects in the image. They are only suitable for image sequences with relatively single processing information, especially image The information is complex and changeable, and the limitations of these methods make it impossible to meet the requirements of real-time and high precision

[0004] Domestic research on electronic image stabilization technology started relatively late and is still in its infancy. Most researchers only study electronic image stabilization algorithms on specific motion platforms, such as airborne, vehicle-mounted or ship-borne image stabilization algorithms.

The electronic image stabilization technology used in engineering mainly utilizes a stable platform composed of a gyro sensor and a servo control system for image stabilization. However, the inherent shortcomings of the servo system, such as large size, high cost, and high power consumption, are often difficult to meet military requirements in many occasions. and the need for further development of civilian equipment

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