DBSN | Unpaired Learning of Deep Image Denoising | Machine Learning library
kandi X-RAY | DBSN Summary
kandi X-RAY | DBSN Summary
Official PyTorch implementation of Unpaired Learning of Deep Image Denoising. We investigate the task of learning blind image denoising networks from an unpaired set of clean and noisy images. Assuming that the noise can be signal dependent but is spatially uncorrelated, we present a two-stage scheme by incorporating self-supervised learning and knowledge distillation. For self-supervised learning, we suggest a dilated blind-spot network (D-BSN) to learn denoising solely from real noisy images. Due to the spatial independence of noise, we adopt a network by stacking 1 × 1 convolution layers to estimate the noise level map for each image. Both the D-BSN and image-specific noise model (CNN_est) can be jointly trained via maximizing the constrained log-likelihood. Given the output of D-BSN and estimated noise level map, improved denoising performance can be further obtained based on the Bayes’ rule. As for knowledge distillation, we first apply the learned noise models to clean images to synthesize a paired set of training images, and use the real noisy images and the corresponding denoising results in the first stage to form another paired set. Illustration of our two-stage training scheme involving self-supervised learning and knowledge distillation.
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Top functions reviewed by kandi - BETA
- Forward computation
- Update feature_ratio_dict
- Gets the weight mask for the given direction
- Set the last size of h and w
- Compute the SSim similarity between two images
- Generate a 2D Gaussian - style Gauss - 2D Gauss - 2D
- 2d convolution of x
- Get training data
- Crop an image
- Augment image
- Load image data
- Iterate an iterable of objs
- Read images via multiprocessing
- Set image direction
- Rotate an image
- Rotates an image
- Forward loss function
- Computes the eigenvalue of a matrix
- Create a dataset
- Load data from disk
- Write image to path
- Transform an image
- Gradient of the backward computation
- Read images
DBSN Key Features
DBSN Examples and Code Snippets
Community Discussions
Trending Discussions on DBSN
QUESTION
I developed an access database to log jobs throughout a production process. Every record has an order, machine, start time, end time among other characteristics of the job. When an order is logged, it is saved in the database along with the machine name, start time and job status (running or idle). When the order is completed, the record is searched using a recordset and "end time" is saved. If the machine is not being utilized, like between shifts, the machine should have an "idle" status.
The purpose of OpenRecMassUpdate is to add an 'end time' to all the incomplete records (those with an order, start time but without end time). This code is used at the end of shift so that all the records could be closed with one click.
After executing this subroutine, the machines that were assigned to an order are now without a status. As a result, I needed another subroutine to add "idle" statuses to all these machines. That is the purpose of MassIdleUpdate. It creates an idle record for every machine that was previously used and status closed using OpenRecMassUpdate.
The problem I am facing is that MassIdleUpdate creates multiple records at random times. When I run analysis on the database, I found some records that were created 3, 4 or more times.
...ANSWER
Answered 2018-Sep-25 at 12:06Instead of looping through all your records counting them and setting the values individually, do it all in one shot. An RDBMS (even Access) is designed for this kind of bulk update.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install DBSN
You can use DBSN like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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