Results 11 to 20 of about 58,083 (262)

Centered pyramids [PDF]

open access: yesIEEE Transactions on Image Processing, 1999
Quadtree-like pyramids have the advantage of re-suiting in a multiresolution representation where each pyramid node has four unambiguous parents. Such a centered topology guarantees a clearly defined up-projection of labels. This concept has been successfully and extensively used in applications of contour detection, object recognition and segmentation.
Brigger, P.   +3 more
openaire   +2 more sources

Framing pyramids [PDF]

open access: yesIEEE Transactions on Signal Processing, 2003
Burt and Adelson (1983) introduced the Laplacian pyramid (LP) as a multiresolution representation for images. We study the LP using the frame theory, and this reveals that the usual reconstruction is suboptimal. We show that the LP with orthogonal filters is a tight frame, and thus, the optimal linear reconstruction using the dual frame operator has a ...
Minh N. Do, Martin Vetterli
openaire   +1 more source

Pyramidal values [PDF]

open access: yesAnnals of Operations Research, 2013
We propose and analyze a new type of values for cooperative TU-games, which we call pyramidal values. Assuming that the grand coalition is sequentially formed, and all orderings are equally likely, we define a pyramidal value to be any expected payoff in which the entrant player receives a salary, and the rest of his marginal contribution to the just ...
Ramón Flores   +2 more
openaire   +6 more sources

Poder religioso, crisis y prosperidad en Pachacamac: del Horizonte Medio al Intermedio Tardío

open access: yesBulletin de l'Institut Français d'Études Andines, 2004
Pachacamac has been defined as a great ceremonial center with much fame in Old Peru. Their origins go back Early to the Intermediate Period. In this article we present some results the presence of happened climatic changes mainly in the Average Horizon ...
Régulo Franco Jordán
doaj   +1 more source

Optical Design Optimization for Indoor Solar Illumination Using Truncated Tetrahedral Pyramid Concentrator [PDF]

open access: yesEngineering and Technology Journal, 2014
A concept of indoor solar illumination is described and designed. The solar illumination system is composed of a none tracking primary reflector and controlling mirrors.
Hisham A. Maliek   +1 more
doaj   +1 more source

Russia Under the Pyramids. The Significance of Russia-Egypt Relations Under Vladimir Putin

open access: yesHistoria i Polityka, 2019
The subject of our interest is to analyze the significance of Russia-Egypt relations undervVladimir Putin. The main purpose of our studies is to present the most important conditions and dependencies that characterize political, economic and military ...
Andrzej Purat, Paweł Bielicki
doaj   +1 more source

Drivers of adoption of reuse-on-the-go systems among low-income consumers in Kenya: insights from key expert entrepreneurs using the Theoretical Domains Framework and COM-B model

open access: yesFrontiers in Sustainability
IntroductionReusable systems can reduce plastic pollution from single-use packaging in fast-moving consumer goods in the Global South. While both “at-home” and “on-the-go” models exist, the latter requires greater consumer effort, as users must regularly
Luis Artavia-Mora   +6 more
doaj   +1 more source

Multi-exposure electric power monitoring image fusion method without ghosting based on exposure fusion framework and color dissimilarity feature

open access: yesFrontiers in Neurorobotics, 2023
To solve the ghosting artifacts problem in dynamic scene multi-scale exposure fusion, an improved multi-exposure fusion method has been proposed without ghosting based on the exposure fusion framework and the color dissimilarity feature of this study ...
Sichao Chen   +6 more
doaj   +1 more source

The Myth of the Pyramid [PDF]

open access: yesLatinX in AI at Computer Vision and Pattern Recognition Conference 2024
A deep-rooted strategy for building convolutional neural networks in computer vision is to increase the number of filters every time the feature map resolution is decreased. The notion ruling this pyramidal design is that the expressivity of the network increases with a higher number of filters to compensate for losses caused for lower resolutions ...
Ramon Izquierdo-Cordova   +1 more
openaire   +1 more source

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