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ISSN Печать: 1065-3090
ISSN Онлайн: 1940-4336
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VISUAL TRACKING WITH METHODOLOGIES − A LITERATURE SURVEY
Краткое описание
Various algorithms used in computer vision are discussed here. The Kalman filter widely used in various computer vision applications includes object tracking, pattern recognition, etc. The Kalman filter was further improved to an extended Kalman filter with some additional features cited in this paper. Subsequently, the Particle filter as a filtering algorithm was developed with some distinct features. However, like Kalman filters, they opened a great way for tracking the state of a dynamic system for which one has a Bayesian model. The Particle filter was further modified to an improved particle filtering tracking algorithm for focusing on the problem of tracking a moving object in image sequences with complex background. Moreover, for somewhat similar type of applications, Optical flow was introduced. The term "Optical flow" is also used by roboticists, encompassing related techniques from image processing and control of navigation including motion detection, object segmentation, time-to-contact information, focus of expansion calculations, luminance, motion- compensated encoding, and stereo disparity measurement. It is very helpful for 2D motion and tracking. Considering Optical flow as a base, another flow technique known as Scene flow/Scene flow estimation is devised for 3D motion and tracking that is very helpful in state-of-the-art Visual Odometry and SLAM algorithms. This paper is a critical review/survey on the existing literature relevant to computer vision algorithms and their applications. Emphasis has been put on succinctly providing the knowledge regarding all previous and latest algorithms implemented in the field of computer vision.