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We describe an algorithm to enhance and binarize a fingerprint image. The algorithm is based on accurate determination of orientation flow of the ridges of the fingerprint image by computing variance of the neighborhood pixels around a…

计算机视觉与模式识别 · 计算机科学 2009-07-03 Simant Dube

The imperative need to scale computation across numerous nodes highlights the significance of efficient parallel computing, particularly in the realm of Message Passing Interface (MPI) integration. The challenging parallel programming task…

分布式、并行与集群计算 · 计算机科学 2024-04-24 Nadav Schneider , Niranjan Hasabnis , Vy A. Vo , Tal Kadosh , Neva Krien , Mihai Capotă , Guy Tamir , Ted Willke , Nesreen Ahmed , Yuval Pinter , Timothy Mattson , Gal Oren

Medical image processing demands specialized software that handles high-dimensional volumetric data, heterogeneous file formats, and domain-specific training procedures. Existing frameworks either provide low-level components that require…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Tianhao Fu , Yucheng Chen

We show how to construct an algorithm to search for binary idempotents which may be used to construct binary LDPC codes. The algorithm, which allows control of the key properties of sparseness, code rate and minimum distance, is constructed…

信息论 · 计算机科学 2007-07-16 R. Horan , C. Tjhai , M. Tomlinson , M. Ambroze , M. Ahmed

Frameproof codes are used to fingerprint digital data. It can prevent copyrighted materials from unauthorized use. In this paper, we study upper and lower bounds for $w$-frameproof codes of length $N$ over an alphabet of size $q$. The upper…

信息论 · 计算机科学 2014-11-24 Chong Shangguan , Xin Wang , Gennian Ge , Ying Miao

Spatially coupled, parallel concatenated codes (SC-PCCs) have been shown to approach channel capacity when decoded using optimal iterative methods. However, under complexity constraints such decoding strategies can result in unacceptable…

信息论 · 计算机科学 2021-09-07 Andrew D. Cummins , David G. M. Mitchell , Daniel J. Costello,

It is shown that the maximum size of a binary subspace code of packet length $v=6$, minimum subspace distance $d=4$, and constant dimension $k=3$ is $M=77$; in Finite Geometry terms, the maximum number of planes in $\operatorname{PG}(5,2)$…

组合数学 · 数学 2015-10-16 Thomas Honold , Michael Kiermaier , Sascha Kurz

Embodied agents have achieved prominent performance in following human instructions to complete tasks. However, the potential of providing instructions informed by texts and images to assist humans in completing tasks remains underexplored.…

计算与语言 · 计算机科学 2023-05-04 Yujie Lu , Pan Lu , Zhiyu Chen , Wanrong Zhu , Xin Eric Wang , William Yang Wang

We present a novel means of describing local image appearances using binary strings. Binary descriptors have drawn increasing interest in recent years due to their speed and low memory footprint. A known shortcoming of these representations…

计算机视觉与模式识别 · 计算机科学 2015-01-16 Gil Levi , Tal Hassner

We consider the problem of learning optimal binary classification trees. Literature on the topic has burgeoned in recent years, motivated both by the empirical suboptimality of heuristic approaches and the tremendous improvements in…

机器学习 · 统计学 2020-05-14 Sina Aghaei , Andres Gomez , Phebe Vayanos

In this paper we propose a novel fingerprint indexing approach for speeding up in the fingerprint recognition system. What kind of features are used for indexing and how to employ the extracted features for searching are crucial for the…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Gwang-Il Ri , Chol-Gyun Ri , Su-Rim Ji

A novel adaptive binary decoding algorithm for LDPC codes is proposed, which reduces the decoding complexity while having a comparable or even better performance than corresponding non-adaptive alternatives. In each iteration the variable…

信息论 · 计算机科学 2009-04-24 Ingmar Land , Gottfried Lechner , Lars K. Rasmussen

Cyclic codes, as a crucial subclass of linear codes, exhibit broad applications in communication systems, data storage systems, and consumer electronics, primarily attributed to their well-structured algebraic properties. Let $p$ denote an…

信息论 · 计算机科学 2025-09-15 Mengen Fang , Lanqiang Li , Fuyin Tian , Li Liu

Peptides are recognized for their varied self-assembly behaviors, forming a wide array of structures and geometries, such as spheres, fibers, and hydrogels, each presenting a unique set of material properties. The functionalities of these…

Secure Device Pairing (SDP) relies on an out-of-band channel to authenticate devices. This requires a common hardware interface, which limits the use of existing SDP systems. We propose to use short-range acoustic communication for the…

密码学与安全 · 计算机科学 2023-02-16 Florentin Putz , Flor Álvarez , Jiska Classen

Modern approaches for fast retrieval of similar vectors on billion-scaled datasets rely on compressed-domain approaches such as binary sketches or product quantization. These methods minimize a certain loss, typically the mean squared error…

计算机视觉与模式识别 · 计算机科学 2022-02-23 Kenza Amara , Matthijs Douze , Alexandre Sablayrolles , Hervé Jégou

Visible-infrared person re-identification (VI-ReID) enables cross-modality identity matching for all-day surveillance, yet existing methods predominantly focus on the image level or rely heavily on costly identity annotations. While…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Zhiyong Li , Wei Jiang , Haojie Liu , Mingyu Wang , Wanchong Xu , Weijie Mao

Current multi-modal object re-identification approaches based on large-scale pre-trained backbones (i.e., ViT) have displayed remarkable progress and achieved excellent performance. However, these methods usually adopt the standard full…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Minghui Lin , Shu Wang , Xiang Wang , Jianhua Tang , Longbin Fu , Zhengrong Zuo , Nong Sang

Complete complementary codes (CCCs) play a vital role not only in wireless communication, particularly in multicarrier systems where achieving an interference-free environment is of paramount importance, but also in the construction of…

信息论 · 计算机科学 2024-03-25 Palash Sarkar , Chunlei Li , Sudhan Majhi , Zilong Liu

Current state-of-the-art approaches to cross-modal retrieval process text and visual input jointly, relying on Transformer-based architectures with cross-attention mechanisms that attend over all words and objects in an image. While…

计算机视觉与模式识别 · 计算机科学 2022-02-22 Gregor Geigle , Jonas Pfeiffer , Nils Reimers , Ivan Vulić , Iryna Gurevych