Acceleration of Optical Flow Computations on Tightly-Coupled Processor Arrays

2013 ◽  
Vol 30 (1) ◽  
pp. 80-89 ◽  
Author(s):  
Éricles Rodrigues Sousa ◽  
Alexandru Tanase ◽  
Vahid Lari ◽  
Frank Hannig ◽  
Jürgen Teich ◽  
...  
Keyword(s):  
Optical Flow ◽  
Processor Arrays ◽  
Tightly Coupled

Hierarchical power management for adaptive tightly-coupled processor arrays

2013 ◽  
Vol 18 (1) ◽  
pp. 1-25 ◽  
Author(s):  
Vahid Lari ◽  
Shravan Muddasani ◽  
Srinivas Boppu ◽  
Frank Hannig ◽  
Moritz Schmid ◽  
...  
Keyword(s):  
Power Management ◽  
Processor Arrays ◽  
Tightly Coupled ◽  
Hierarchical Power Management

Visual-inertial SLAM method based on optical flow in a GPS-denied environment

2018 ◽  
Vol 45 (3) ◽  
pp. 401-406 ◽  
Author(s):  
Chang Chen ◽  
Hua Zhu
Keyword(s):  
Optical Flow ◽  
Measurement Unit ◽  
Data Sets ◽  
Theoretical Derivation ◽  
Content Type ◽  
Feature Extraction Method ◽  
Localization And Mapping ◽  
Global Positioning ◽  
Tightly Coupled ◽  
The Stability

Purpose This study aims to present a visual-inertial simultaneous localization and mapping (SLAM) method for accurate positioning and navigation of mobile robots in the event of global positioning system (GPS) signal failure in buildings, trees and other obstacles. Design/methodology/approach In this framework, a feature extraction method distributes features on the image under texture-less scenes. The assumption of constant luminosity is improved, and the features are tracked by the optical flow to enhance the stability of the system. The camera data and inertial measurement unit data are tightly coupled to estimate the pose by nonlinear optimization. Findings The method is successfully performed on the mobile robot and steadily extracts the features on low texture environments and tracks features. The end-to-end error is 1.375 m with respect to the total length of 762 m. The authors achieve better relative pose error, scale and CPU load than ORB-SLAM2 on EuRoC data sets. Originality/value The main contribution of this study is the theoretical derivation and experimental application of a new visual-inertial SLAM method that has excellent accuracy and stability on weak texture scenes.

scholarly journals Efficient Mapping of CNNs onto Tightly Coupled Processor Arrays

2019 ◽  
Vol 14 (8) ◽  
pp. 541-556
Author(s):  
Christian Heidorn
Keyword(s):  
Processor Arrays ◽  
Tightly Coupled

Hand Sign Recognition via Deep Learning on Tightly Coupled Processor Arrays

2021 ◽  
Author(s):  
Christian Heidorn ◽  
Dominik Walter ◽  
Yunus Emre Candir ◽  
Frank Hannig ◽  
Jurgen Teich
Keyword(s):  
Deep Learning ◽  
Sign Recognition ◽  
Processor Arrays ◽  
Tightly Coupled

scholarly journals Safe Overclocking of Tightly Coupled CGRAs and Processor Arrays using Razor

2013 ◽  
Author(s):  
Alexander Brant ◽  
Ameer Abdelhadi ◽  
Douglas H. H. Sim ◽  
Shao Lin Tang ◽  
Michael Xi Yue ◽  
...  
Keyword(s):  
Processor Arrays ◽  
Tightly Coupled

Invasive Tightly-Coupled Processor Arrays

2014 ◽  
Vol 13 (4s) ◽  
pp. 1-29 ◽  
Author(s):  
Frank Hannig ◽  
Vahid Lari ◽  
Srinivas Boppu ◽  
Alexandru Tanase ◽  
Oliver Reiche
Keyword(s):  
Processor Arrays ◽  
Tightly Coupled

Tightly Coupled Visual-Inertial Navigation System Using Optical Flow

2013 ◽  
Vol 46 (30) ◽  
pp. 251-256 ◽  
Author(s):  
Simon Lynen ◽  
Sammy Omari ◽  
Matthias Wüest ◽  
Markus Achtelik ◽  
Roland Siegwart
Keyword(s):  
Optical Flow ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Tightly Coupled

scholarly journals Temperature modeling and emulation of an ASIC temperature monitor system for Tightly-Coupled Processor Arrays (TCPAs)

2014 ◽  
Vol 12 ◽  
pp. 103-109 ◽  
Author(s):  
E. Glocker ◽  
S. Boppu ◽  
Q. Chen ◽  
U. Schlichtmann ◽  
J. Teich ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temperature Monitoring ◽  
Monitor System ◽  
Processor Array ◽  
Modeling Approach ◽  
Temperature Modeling ◽  
Processor Arrays ◽  
Tightly Coupled ◽  
Temperature Monitor ◽  
Run Time

Abstract. This contribution provides an approach for emulating the behaviour of an ASIC temperature monitoring system (TMon) during run-time for a tightly-coupled processor array (TCPA) of a heterogeneous invasive multi-tile architecture to be used for FPGA prototyping. It is based on a thermal RC modeling approach. Also different usage scenarios of TCPA are analyzed and compared.

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