Wide-angle lens-based FPGA & DSP embedded multi-valued targets threshold categorization tracking device

Abstract

The invention provides a wide-angle lens-based FPGA & DSP embedded multi-valued targets threshold categorization tracking device and relates to an embedded system for identifying and tracking multi-targets in a video stream and a related algorithm. Image collection is completed by a wide-angle lens and a color area array CMOS chip; digital image pretreatment, such as digital filtering, image enhancement and the like, is carried out by the FPGA; the algorithms such as multi-valued targets threshold categorization identification, marking registration and the like are realized in a main processor with the DSP as a core; an improved image-tracking program which is based on multi-targets cross operation of a probabilistic forecasting model generates a tracking gate in real time; a target tester in the tracking gate controls and tracks a process and outputs a target value. The wide-angle lens-based multi-valued targets threshold categorization tracking device supported by an embedded hardware platform has wide application prospect in the aspects of dynamic photography, security monitoring, maneuvering target detecting, multi-targets tracking, automatic navigation of vehicles, etc. The device especially has the advantage in constructing an airborne target tracking system with small structure volume and low power consumption.

Description

【Technical field】: [0001] The invention belongs to the technical field of embedded machine vision application and target tracking. 【Background technique】: [0002] Ordinary image trackers mostly use conventional lenses to obtain target information. Due to the small field of view of the conventional lens, only limited local information of the scene can be obtained, resulting in a large blind area of ​​the vision system, which is not conducive to real-time tracking of the target. The panoramic vision system constructed by adopting the large wide-angle lens of the present invention has the advantages of large field of view and full-scene recording. On the one hand, the large wide-angle can instantly record all-round scenery, wide field of view, large amount of image information, and the camera and the scenery are in a state of relative motion. The target is not easy to lose. On the other hand, panoramic shooting does not need to use the pan-tilt servo system for panning, and a...

AI Technical Summary

Problems solved by technology

Ordinary target tracking methods are greatly affected by light, and it is easy to lose the target when the object is occluded or the background is complex, the background and the target move at the same time, etc.

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