Essays about: "low-light vision"

Found 4 essays containing the words low-light vision.

  1. 1. Real-world low-light image enhancement using Variational Autoencoders

    University essay from Lunds universitet/Matematik LTH

    Author : Olle Eriksson; [2020]
    Keywords : machine learning; deep learning; U-Net; VAE; variational autoencoder; image processing; low-light vision; Mathematics and Statistics;

    Abstract : Low-light image enhancement is a hard task mainly due to the amount of noise and little information stored in the dark image. In this thesis project we develop a method for low-light image enhancement based on a Conditional Variational Autoencoder (CVAE). The CVAE is a deep learning model trained with a specific objective function (ELBO). READ MORE

  2. 2. Foraging efficiencies on drifting and benthic prey in juvenile salmonids - effect of light

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper

    Author : Pia L. M. Larsson; [2016]
    Keywords : Foraging; benthic; prey; drifting; salmon; trout; salmonids; light; day; night;

    Abstract : Stream living salmonids are generally regarded as drift feeders that rely upon their vision when foraging. It has been shown that salmonids become nocturnal at low water temperatures, but have a low foraging efficiency as light intensity is low, due to their dependence upon vision. READ MORE

  3. 3. The effect of low light intensities and red light on heart rate, blood pressure, respiratory rate and activity in dairy cows

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Pernilla Olsson; [2014]
    Keywords : dairy cows; light intensity; colour; respiratory rate; heart rate; blood pressure; novel object test; obstacle course; vision;

    Abstract : Today dairy farmers in Sweden are obligated to have lights turned on during night time in addition to the mandatory daylight inlet. This presents a cost for the production but many argue that it can be economically beneficial, especially in loose housing of dairy cows. READ MORE

  4. 4. Effect of low light intensities on dairy cows’ behavior

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Jennifer Eriksson; [2014]
    Keywords : light intensity; dairy cow; behavior; vision; color; obstacle course; novel object test;

    Abstract : The animal welfare act in Sweden states that dairy cows need to have at least a dim light present at night, but there are no recommendations for what intensity the light should have. It is unknown how cows perceive and react to low light intensities and earlier studies on this topic are limited. READ MORE