A Digital Instrument for Light Flicker Effect Evaluation

2008 ◽  
Vol 57 (1) ◽  
pp. 76-84 ◽  
Author(s):  
Giovanni Bucci ◽  
Edoardo Fiorucci ◽  
Carmine Landi
Keyword(s):  
Digital Instrument ◽  
Effect Evaluation ◽  
Flicker Effect ◽  
Light Flicker

scholarly journals Assessing horseshoe crab avoidance response of flicker and continuous red-light LED: Gillnets bycatch mitigation

2021 ◽  
Vol 869 (1) ◽  
pp. 012034
Author(s):  
R Rahayu ◽  
R W Fuah ◽  
R I Wahju ◽  
W Mawardi ◽  
I Agustina ◽  
...  
Keyword(s):  
Horseshoe Crab ◽  
Response Pattern ◽  
Red Light ◽  
Red Led ◽  
Horseshoe Crabs ◽  
Flicker Effect ◽  
Light Flicker ◽  
The Right ◽  
Protected Animal ◽  
Better Than

Abstract The horseshoe crab has the important roles as macrobenthos, but it is unfriendly for gillnets fisheries because it can damage the fishing net. The horseshoe crab is an ancient, rare, and protected animal so that the fishermen unable to utilize it, so the effort like mitigations need to be conducted like using red light LED. To avoid the learning behavior of horseshoe crab, so that the technology used is red light LED continuous then the red light led with flicker is used as a comparison. This study aims to determine the right type of red-light LED for horseshoe crab bycatch mitigation by the response pattern. The method used was a laboratory experiment. There are 20 adult horseshoe crabs used. The analysis used was descriptively comparative. The results showed that the red-light LED with flicker was most avoided by horseshoe crabs, which is 75%, while the fastest response of horseshoe crab in avoiding light was found in the light with a flicker effect of 22.97 seconds. Based on the horseshoe crab’s response, it can be concluded that the red LED light flicker is better than the red LED continuous as an alternative technology for the mitigation of horseshoe crab bycatch.

A basic introduction to image processing using NIH-Image as a model

1994 ◽  
Vol 52 ◽  
pp. 392-393
Author(s):  
John Mansfield
Keyword(s):  
Image Processing ◽  
Digital Image ◽  
Image Acquisition ◽  
Digital Instrument ◽  
Novice User ◽  
Nih Image ◽  
The Past ◽  
Digital World ◽  
The World ◽  
Instrument Control

Advances in camera technology and digital instrument control have meant that in modern microscopy, the image that was, in the past, typically recorded on a piece of film is now recorded directly into a computer. The transfer of the analog image seen in the microscope to the digitized picture in the computer does not mean, however, that the problems associated with recording images, analyzing them, and preparing them for publication, have all miraculously been solved. The steps involved in the recording an image to film remain largely intact in the digital world. The image is recorded, prepared for measurement in some way, analyzed, and then prepared for presentation.Digital image acquisition schemes are largely the realm of the microscope manufacturers, however, there are also a multitude of “homemade” acquisition systems in microscope laboratories around the world. It is not the mission of this tutorial to deal with the various acquisition systems, but rather to introduce the novice user to rudimentary image processing and measurement.

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