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An image centroid computing method and implementation device

A calculation method and centroid technology, which is applied in the field of embedded image centroid calculation, can solve problems such as the lack of NiosII microprocessor embedding, and achieve the effects of improving scalability and flexibility, robust operation, and high integration

Inactive Publication Date: 2008-06-04
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

However, there is no report on the method and hardware implementation of image centroid calculation by embedding the Nios II microprocessor in the programmable logic gate array

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  • An image centroid computing method and implementation device
  • An image centroid computing method and implementation device
  • An image centroid computing method and implementation device

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] The image centroid calculation method of the present invention: the Nios II microprocessor is embedded in the programmable logic gate array to form a programmable system on chip; the feature that the programmable logic gate array is suitable for completing the parallel structure function is utilized, and the programmable logic gate array is combined with The pipeline form sequentially completes image processing area selection, image enhancement, image binarization, and image centroid statistics for real-time processing; among them:

[0035] Process the area selection step, receive the area location information, receive the digital video data stream according to the area location information, and generate the data sending end signal in the selected area;

[0036] The image preprocessing step is to enhance and filter the received digital video data strea...

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Abstract

The invention discloses a calculating method and a realization apparatus for image centroid. The invention insets a Nios II microprocessor into the interior of a programmable logic gate array to form a system on a programmable chip. By utilizing the characteristic of the programmable logic gate array on applicability to completing the concurrent structure function, the functions such as selection of the image treatment areas, image enhancement, binary image, image centroid statistics can be completed by the programmable logic gate array. The programmable logic gate array connects each function unit in the form of pipeline structure in the process of completing the image centroid statistic, thus achieving the goal of real-time treatment. By utilizing the characteristic of convenience and flexibility of free customization in the Nios II microprocessor, the size of the image treatment area can be selected according to the actual requirements in the process of treatment, and the bit width and the direction of a data interface bus can be designed thereby without limitations of the prefabricated processor technology.

Description

technical field [0001] The present invention relates to the embedded image centroid calculation technology based on Nios II, specifically a Nios II-based embedded image centroid calculation method and implementation device, which can be applied to target centroid extraction, target description and recognition and motion Estimation, object tracking and other fields. Background technique [0002] The position of the center of mass is a certain point on the target image, and the coordinates of the center of mass are the average result of the coordinate values ​​of each point on the target image in the window, so a small amount of interference points in the window will not have a great impact on the calculation of the center of mass, and the graphics Holes, cracks, or even several detached pieces do not impede calculations. When the attitude of the target changes, the position of this point changes little, so the position of the center of mass is often used to track the target....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26G06T7/00H04N19/43
Inventor 杨光宇佟新鑫王庆山刘晓安朱丹
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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