Online object contour tracking method based on horizontal set

Abstract

The invention discloses an online object contour tracking method based on a horizontal set. First of all, an initial contour is calibrated manually in a first frame of an object image, a horizontal set contour tracking sign is arranged, and according to an initial object contour, a discriminant classifier, a horizontal set function and an object detector are initialized; according to whether the horizontal set contour tracking sign is valid or not, whether horizontal set contour tracking based on a discriminant apparent model is performed is determined; object detection is carried out by use of the object detector; according to a contour result and an object result, an object contour tracking result is determined, and the initial object contour is updated; and then, according to the object contour tracking result, the discriminant classifier, the horizontal set function and the object detector are updated, and object contour tracking is then performed on a next frame of the image. According to the invention, the object contour tracking is carried out through combination of horizontal contour tracking based on the discriminant apparent model and the object detection, and thus high-precision continuous object contour tracking is realized.

Description

technical field [0001] The invention belongs to the technical field of image target tracking, and more specifically relates to an online target contour tracking method based on a level set. Background technique [0002] Video tracking has now been widely used in various occasions and fields, and has brought immeasurable impact on people's daily life and social development in many aspects. Among them, contour tracking plays a very important role. For example, in medicine, multi-cell contour tracking has made important contributions to the study of cell division changes. For the regeneration and evolution of cell life, it is very important to carry out long-term analysis and tracking of its contour accuracy, which will also play a very important role in the future human civilization; another example is to conduct behavior analysis by tracking human behavior , which will then be applied in many ways. [0003] In the actual process of tracking, there will be various moving ob...

AI Technical Summary

Problems solved by technology

At the same time, online active contour tracking is prone to drift due to noise interference. Once lost, it will lead to tracking failure and cannot continue tracking

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