Differential Invariants and Curvature Flows in Active Vision

1997 ◽  
pp. 196-213
Author(s):  
Allen Tannenbaum ◽  
Anthony Yezzi
Keyword(s):  
Active Vision ◽  
Differential Invariants

Task-Driven Active Vision for Security and Surveillance.

1996 ◽  
Author(s):  
H. K. Nishihara ◽  
Phil Kahn ◽  
Stanley J. Rosenschein ◽  
J. B. Burns ◽  
Matthew Turk
Keyword(s):  
Active Vision

A Few Steps Towards 3D Active Vision

1997 ◽  
Author(s):  
Thierry Viéville
Keyword(s):  
Active Vision

scholarly journals Small flexible automated system for monitoring Caenorhabditis elegans lifespan based on active vision and image processing techniques

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Joan Carles Puchalt ◽  
Antonio-José Sánchez-Salmerón ◽  
Eugenio Ivorra ◽  
Silvia Llopis ◽  
Roberto Martínez ◽  
...  
Keyword(s):  
Image Processing ◽  
Caenorhabditis Elegans ◽  
Culture Media ◽  
Active Vision ◽  
Automated System ◽  
Rank Test ◽  
P Value ◽  
Vision Systems ◽  
C Elegans ◽  
Processing Techniques

AbstractTraditionally Caenorhabditis elegans lifespan assays are performed by manually inspecting nematodes with a dissection microscope, which involves daily counting of live/dead worms cultured in Petri plates for 21–25 days. This manual inspection requires the screening of hundreds of worms to ensure statistical robustness, and is therefore a time-consuming approach. In recent years, various automated artificial vision systems have been reported to increase the throughput, however they usually provide less accurate results than manual assays. The main problems identified when using these vision systems are the false positives and false negatives, which occur due to culture media changes, occluded zones, dirtiness or condensation of the Petri plates. In this work, we developed and described a new C. elegans monitoring machine, SiViS, which consists of a flexible and compact platform design to analyse C. elegans cultures using the standard Petri plates seeded with E. coli. Our system uses an active vision illumination technique and different image-processing pipelines for motion detection, both previously reported, providing a fully automated image processing pipeline. In addition, this study validated both these methods and the feasibility of the SiViS machine for lifespan experiments by comparing them with manual lifespan assays. Results demonstrated that the automated system yields consistent replicates (p-value log rank test 0.699), and there are no significant differences between automated system assays and traditionally manual assays (p-value 0.637). Finally, although we have focused on the use of SiViS in longevity assays, the system configuration is flexible and can, thus, be adapted to other C. elegans studies such as toxicity, mobility and behaviour.

Vibration Sensing of a Bridge Model Using a Multithread Active Vision System

2018 ◽  
Vol 23 (1) ◽  
pp. 179-189 ◽  
Author(s):  
Tadayoshi Aoyama ◽  
Makoto Chikaraishi ◽  
Akimasa Fujiwara ◽  
Liang Li ◽  
Mingjun Jiang ◽  
...  
Keyword(s):  
Vision System ◽  
Active Vision ◽  
Bridge Model ◽  
Vibration Sensing

Differential invariants of immersions of manifolds with metric fields

2003 ◽  
Vol 51 (2-3) ◽  
pp. 307-313 ◽  
Author(s):  
Pavla Musilová ◽  
Demeter Krupka
Keyword(s):  
Differential Invariants
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