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Multiple Object Segmantation Essay

603 words - 3 pages

Object detection is two stage process. In first step object is
segmented from rest of the image and in second stage it is
recognized for correct known class. To identify moving object
from video sequences the frame image is generally separated as
foreground and background pixels. The fore ground pixels are
dynamic which changes from frame to frame in video
sequences. These foreground pixel detected have object of
interest as well as other disturbance due to devices and object
itself. Segmentation of fore ground object is complex problem
in computer vision. Many techniques are developed to segment
the objects in given frame of image. Object detection in any
video system start with localization of object in given frames.
The object location may be at one place or multiple places in
same frame. Once target object is localized then it is passed to
recognition system for recognition of system with known
objects [1]. This object localization may get affected by many
conditions. Such as scaled objects, rotation, occlusion by other
objects, different illumination condition, clutter of objects
either by proximity or cast shadow and environmental noise.
The moving object detection and tracking is important in
surveillance, medical diagnosis, monitoring and other similar
applications. When multiple objects are to be detected then the
objects get wrongly identified due to their clutter with other
objects. The foreground pixel get grouped and detected as
single object. This situation degrades the overall performance
of the surveillance system. In this paper we have presented the
work carried out for the issues involved during object
segmentation when multiple objects are present. When we
analyze the situation of merging or clutter of the objects, the
cause of this situation is either shadow or overlapping of the
object. Shadow is detected as foreground pixel as it is moving
along with the object in...

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