Topological structural analysis of digitized binary images by border following

Suzuki, Shinichi; Abe, Keiichi

doi:10.1016/0734-189x(85)90136-7

Cited by 364 publications

(383 citation statements)

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“…Thus, given the image I j captured from camera, we extract all the black ellipses {e i } ∈ I j (Fig. I) according to [4] that correspond to the projections of the circles {c i }. Since an ellipse is a conic section, in the most general case it is possible to write the ellipse equation in this form: Step by step illustration of the membrane surface reconstruction process.…”

Section: A Physical Setupmentioning

confidence: 99%

Human skeleton tracking from depth data using geodesic distances and optical flow

Schwarz

Mkhitaryan

Mateus

et al. 2012

Image and Vision Computing

165

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Abstract-We present a vision based multisensor that is designed for robot interaction with small, soft, and possibly fragile objects. The sensor consists of a rubber membrane, a rectangular frame on which the membrane is mounted and a CCD camera. The entire system is airtight. Based on the observed deformations of the membrane, we determine the contact area, the integral force acting on the membrane, the 3D force distribution over the membrane, and derive properties of the target object by monitoring the evolution of its deformation. We can distinguish between different types of materials, i.e., solid, soft, amorphous, and determine the speed and nature of their deformation. The sensitivity of the sensor can be adjusted by changing the volume of air within the rectangular frame. We achieved a small noise to signal ratio, which allows us to observe small integral forces in the range of 0.5 N to 2.5 N, with an average error of 0.04 N.

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Section: A Physical Setupmentioning

confidence: 99%

Human skeleton tracking from depth data using geodesic distances and optical flow

Schwarz

Mkhitaryan

Mateus

et al. 2012

Image and Vision Computing

165

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“…5. A border following technique [55] was used to generate a collection of contours with different size and shape throughout the border of binary image as shown in Fig. 12(c).…”

Section: Lip Segmentationmentioning

confidence: 99%

“…To the binary image containing the lip region a contour extraction algorithm was applied using a border following technique [55]. From the collection of contours produced, the largest is selected to generate the lip outline.…”

Section: Lip Geometry Feature Extractionmentioning

confidence: 99%

Geometrical-based lip-reading using template probabilistic multi-dimension dynamic time warping

Ibrahim

Mulvaney

2015

Journal of Visual Communication and Image Representation

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“…The extracted objects are represented in the form of trees, in which the root is a sequence representing the outer contour and the children are sequences designating inner contours of successive depth levels. The implemented algorithm, developed originally by Suzuki and Abe (1985), bases on two principle identifiers denoted by NBD and LNBD. The NBD identifier stands for the sequential number of the newly-found border and LNBD represents the sequential number of the border recently encountered during the searching process.…”

Section: Video Processingmentioning

confidence: 99%

Multimedia polysensory integration training system dedicated to children with educational difficulties

2015

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This paper aims at presenting a multimedia system providing polysensory training for pupils with educational difficulties. The particularly interesting aspect of the system lies in the sonic interaction with image projection in which sounds generated lead to stimulation of a particular part of the human brain. The system architecture, video processing methods, therapeutic exercises and guidelines for children's interaction with the system are presented. Results of pupils' improvements after several weeks of exercising with the system are provided. The outcome of this study suggests that learning and developing through the interactive method helped to improve children's spatial orientation skills.

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Topological structural analysis of digitized binary images by border following

Cited by 364 publications

References 0 publications

Human skeleton tracking from depth data using geodesic distances and optical flow

Human skeleton tracking from depth data using geodesic distances and optical flow

Geometrical-based lip-reading using template probabilistic multi-dimension dynamic time warping

Multimedia polysensory integration training system dedicated to children with educational difficulties

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