O. Silvén

Publications143
h-index21
Citations4,038
Highly Influential Citations170
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  • Publications
  • Influence
A four-step camera calibration procedure with implicit image correction
  • J. Heikkilä, O. Silvén
  • Computer Science, Mathematics
  • Proceedings of IEEE Computer Society Conference…
  • 17 June 1997
TLDR
We present a four-step calibration procedure that is an extension to the two-step method. Expand
  • 2,075
  • 91
  • PDF
A real-time system for monitoring of cyclists and pedestrians
TLDR
We present a new camera based automatic system that utilizes Kalman filtering in tracking and Learning Vector Quantization for classifying the observations to pedestrians and cyclists. Expand
  • 241
  • 9
  • PDF
Face and Eye Detection for Person Authentication in Mobile Phones
TLDR
We experimentally analyze a face authentication scheme using Haar-like features with Ad-aBoost for face and eye detection, and local binary pattern (LBP) approach for face authentication. Expand
  • 109
  • 8
  • PDF
Wood inspection with non-supervised clustering
TLDR
We present a non-supervised clustering-based approach for detecting and recognizing defects in lumber boards. Expand
  • 122
  • 5
  • PDF
COLOR AND TEXTURE BASED WOOD INSPECTION WITH NON-SUPERVISED CLUSTERING
The appearance of sawn timber has huge natural variations that a human inspector easily compensates for in his brain when determining the types of defects and the grade of each board. However, for… Expand
  • 60
  • 5
  • PDF
A GPU implementation for two MIMO-OFDM detectors
TLDR
Two real-valued signal models based on selective spanning with fast enumeration (SSFE) and layered orthogonal lattice detector (LORD) algorithms are implemented on a Nvidia graphics processing unit (GPU). Expand
  • 27
  • 3
  • PDF
Color vision based methodology for grading lumber
TLDR
We describe the outlines of a color vision solution for grading softwood lumber . Expand
  • 26
  • 3
Large Intelligent Surface for Positioning in Millimeter Wave MIMO Systems
TLDR
We introduce the new concept, large intelligent surface (LIS), to mmWave positioning systems, study the theoretical performance bounds (i.e., Cramér-Rao lower bounds) for positioning, and evaluate the impact of the number of LIS elements and the value of phase shifters on the position estimation accuracy compared to the conventional scheme with one direct link and one non-line-of-sight path. Expand
  • 17
  • 3
  • PDF
Fine-grained application-specific instruction set processor design for the K-best list sphere detector algorithm
TLDR
An application-specific instruction set processor is designed for the K-best LSD using transport triggered architecture and it reaches a detection throughput of 7.6 Mbps. Expand
  • 16
  • 3
A real-time system for monitoring of cyclists and pedestrians
TLDR
We present a new camera based automatic system that utilizes Kalman filtering in tracking and Learning Vector Quantization (LVQ) for classifying the observations to pedestrians and cyclists. Expand
  • 95
  • 2