Results 221 to 230 of about 335,481 (263)

Autonomous microfluidic labs: progress and prospects.

open access: yesLab Chip
Damir S   +3 more
europepmc   +1 more source

Lines pinning lines (Computational Geometry and Discrete Mathematics)

open access: yesLines pinning lines (Computational Geometry and Discrete Mathematics)
openaire  

The Discrete Equation of the Straight Line

IEEE Transactions on Computers, 1975
A new method of description of a straight line defined on a square grid is presented. The discrete equation of the straight line (desl) is introduced as an extension of the classical Cartesian equation, and applies to straight lines quantized on a grid by the grid intersect method.
F Luccio, A Zorat
exaly   +2 more sources

Mechanism design on discrete lines and cycles

Proceedings of the 13th ACM Conference on Electronic Commerce, 2012
We study strategyproof (SP) mechanisms for the location of a facility on a discrete graph. We give a full characterization of SP mechanisms on lines and on sufficiently large cycles. Interestingly, the characterization deviates from the one given by Schummer and Vohra (2004) for the continuous case.
Elad Dokow   +3 more
openaire   +1 more source

A Note on Discrete Representation of Lines

AT&T Technical Journal, 1985
In raster graphics a line must be drawn as a “discrete segment”, a set of integer grid points that lie close to the line. Equivalence classes of identically drawn lines are described in terms of Farey series; this treatment notably simplifies previous work of Dorst and Smeulders. A log n algorithm serves to identify a line's equivalence class. Using it
openaire   +1 more source

Discrete Lines and Wandering Paths

SIAM Journal on Discrete Mathematics, 2007
The problem of finding an approximation to a geometric line by a discrete line using pixels is ubiquitous in computer graphics applications. We show that this discrete line problem in ${\mathbb R}^{n+1}$, for grids of any shape, is equivalent to a geometry problem in ${\mathbb R}^n$ concerning the minimization of the distance that a certain type of ...
openaire   +1 more source

Combining Force Histogram and Discrete Lines to Extract Dashed Lines

2010 20th International Conference on Pattern Recognition, 2010
A new method to extract dashed lines in technical document is proposed in this paper by combining force histogram and discrete lines. The aim is to study the spatial location of couples of connected components using force histogram and to refine the recognition by considering surrounding discrete lines.
Debled-Rennesson, Isabelle   +1 more
openaire   +2 more sources

On using continuous flow lines to model discrete production lines

Discrete Event Dynamic Systems: Theory and Applications, 1994
We extend previous research on the use of models ofcontinuous tandem (CT) lines for performance analysis ofdiscrete tandem (DT) production lines. We formalize the translation of input parameters from the DT line to the CT model, as well as the translation of performance measures (PMs) obtained from the CT model back to the DT line.
Rajan Suri, Bor-Ruey Fu
openaire   +2 more sources

On Line Discrete-Time Control of Industrial Robots

IFAC Proceedings Volumes, 1991
Abstract A recent discrete-time robotic model is employed and linearized to develop three different LQ-type robot controllers. These controllers are: optimal time-varying linear-quadratic controller (OTVLQ), OTVLQ controller with steady-state error elimination, and one-step ahead optimal LQ controller. These controllers require moderate computational
Anastasios Zagorianos   +2 more
openaire   +1 more source

Discrete Morphology with Line Structuring Elements

2003
Discrete morphological operations with line segments are notoriously hard to implement. In this paper we study different possible implementations of the line structuring element, compare them, and examine their rotation and translation invariance in the continuous domain.
Cris L. Luengo Hendriks   +1 more
openaire   +1 more source

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