Patent
Motion detection using normal optical flow
Reads0
Chats0
TLDR
In this paper, a histogram recognition operation is used to identify a motion of an object in a motion region image of the object. But the method is not suitable for the detection of human motion.Abstract:
A system and method obtain images of an object and generate a motion region image of the object. The motion region image is processed to obtain normal gradients of the portion of the object that has been moved. The normal gradient data is further processed to remove erroneous data points. The erroneous data can be removed by using either an eroding method or a threshold method. After the erroneous data is removed, the remaining gradient information is used to identify a motion of the object. This can be performed using a histogram recognition operation.read more
Citations
More filters
Patent
Method for omnidirectional processing of 2D images including recognizable characters
TL;DR: In this paper, an optical reader configured in accordance with the invention searches for pixel groupings in a starburst pattern, and subjects each located pixel grouping within the rail area to a shape-characterizing edge crawling process for developing data that characterizes the shape of a pixel grouping's edge.
Patent
System for automated screening of security cameras
TL;DR: In this article, a real-time image analysis of video data is performed wherein a single pass of a video frame produces a terrain map which contains parameters indicating the content of the video.
Patent
System and method for waving detection based on object trajectory
Ning Xu,Haiying Guan +1 more
TL;DR: In this article, a system and method for detecting a waving motion from a sequence of ordered points is described, in which the system consists of selecting a subset of the ordered points, determining if the subset defines a circular shape, and storing an indication of whether or not the waving motion.
Patent
Dynamic image processing method and device and medium
Yasuhiro Oue,Kazuhide Sugimoto +1 more
TL;DR: In this paper, a motion image processing method and device for authenticating a user using a specific device, using motion information of an object, is presented, based on the result of tracking the respective reference points and an assumption of limited motion in a 3D plane.
Patent
System and method for monitoring viewer attention with respect to a display and determining associated charges
TL;DR: In this paper, an example of an embodiment of the invention is presented, where data relating to at least one impression of a person with respect to a display is detected, and a party associated with the display is charged an amount based at least in part on the data.
References
More filters
Journal ArticleDOI
Color indexing
Michael J. Swain,Dana H. Ballard +1 more
TL;DR: In this paper, color histograms of multicolored objects provide a robust, efficient cue for indexing into a large database of models, and they can differentiate among a large number of objects.
Computer Vision Face Tracking For Use in a Perceptual User Interface
TL;DR: The development of the first core module in this effort: a 4-degree of freedom color object tracker and its application to flesh-tone-based face tracking and the development of a robust nonparametric technique for climbing density gradients to find the mode of a color distribution within a video scene.
Book
Algorithms for image processing and computer vision
TL;DR: Algorithms for Image Processing and Computer Vision, 2nd Edition provides the tools to speed development of image processing applications.
Proceedings ArticleDOI
Color gamut transform pairs
TL;DR: A set of alternative models of the RGB monitor gamut based on the perceptual variables hue, saturation, and value (V) or brightness (L) are presented and algorithms for transforming between these models are derived.