نتایج جستجو برای: zero padding

تعداد نتایج: 150601  

2012
WJ White RMA Hawken NC Giles

TECHNIQUE Humeral nailing is performed with the patient in the lateral decubitus position with the image intensifier at 90o to the patient (Fig 1). During freehand distal locking, the patient’s arm rests on his or her body and the forearm is rested on the anterior pelvic support on sterile padding. By changing the amount of padding, arm rotation can be adjusted to give a perfect view of the dis...

2002
Arjen K. Lenstra Igor E. Shparlinski

We present a practical selective forgery attack against RSA signatures with fixed-pattern padding shorter than two thirds of the modulus length. Our result extends the practical existential forgery of such RSA signatures that was presented at Crypto 2001. For an n-bit modulus the heuristic asymptotic runtime of our forgery is comparable to the time required to factor a modulus of only 9 64n bit...

2002
Xavier Vera Josep Llosa Antonio González

The effectiveness of the memory hierarchy is critical for the performance of current processors. The performance of the memory hierarchy can be improved by means of program transformations such as padding, which is a code transformation targeted to reduce conflict misses. This paper presents a novel approach to perform near-optimal padding for multi-level caches. It analyzes programs, detecting...

Journal: :IACR Cryptology ePrint Archive 2005
Rongxing Lu Zhenfu Cao

ID-based encryption allows for a sender to encrypt a message to an identity without access to a public key certificate. Based on the bilinear pairing, Boneh and Franklin proposed the first practical IDbased encryption scheme and used the padding technique of FujisakiOkamto to extend it to be a chosen ciphertext secure version. In this letter, we would like to use another padding technique to pr...

Journal: :Signal Processing 2021

Abstract Intensity Modulated (IM) optical communication over an LED channel requires the use of a non-negative signal that can also cope with low-pass nature LEDs. For this purpose, dedicated schemes such as Flip-OFDM and Assymetrically Clipped Optical (ACO)-OFDM have been proposed. We derive common mathematical description on which both rely. Exploiting insight, we propose Continuous Phase (CP...

1999
Gabriel Rivera Chau-Wen Tseng

Linear algebra codes contain data locality which can be exploited by tiling multiple loop nests. Several approaches to tiling have been suggested for avoiding connict misses in low associativity caches. We propose a new technique based on intra-variable padding and compare its performance with existing techniques. Results show padding improves performance of matrix multiply by over 100% in some...

Journal: :Imaging 2022

Abstract Objective To evaluate the impact of a motion-correction (MC) algorithm, applicable post-hoc and not dependent on extended padding, image quality interpretability coronary computed tomography angiography (CCTA). Methods Ninety consecutive patients undergoing CCTA latest-generation 256-slice CT device were prospectively included. was performed with prospective electrocardiogram-triggerin...

Journal: :Remote Sensing 2021

This paper proposes an imaging algorithm for synthetic aperture radar (SAR) mounted on a high-speed maneuvering platform with squint terrain observation by progressive scan mode. To overcome the mismatch between range model and signal after walk correction, history is calculated in local polar format. The Doppler ambiguity resolved nonlinear derotation zero-padding. recovered divided into sever...

Journal: :Electronics 2022

In electromagnetic inverse scattering problems, Scattered field commonly needs to be measured by a large number of receiving antennas provide enough scattered information for image reconstruction, which may increase the cost experimental system and require long testing time. this paper, skeletonization-based method was proposed reduce actual involved in an system. The skeleton points were obtai...

Journal: :CoRR 2018
Norman A. Rink

Numerical applications and, more recently, machine learning applications rely on high-dimensional data that is typically organized into multidimensional tensors. Many existing frameworks, libraries, and domainspecific languages support the development of efficient code for manipulating tensors and tensor expressions. However, such frameworks and languages that are used in practice often lack fo...

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