Blurred Image Classification based on Adaptive Dictionary

by   Guangling Sun, et al.

Two types of framework for blurred image classification based on adaptive dictionary are proposed. Given a blurred image, instead of image deblurring, the semantic category of the image is determined by blur insensitive sparse coefficients calculated depending on an adaptive dictionary. The dictionary is adaptive to the Point Spread Function (PSF) estimated from input blurred image. The PSF is assumed to be space invariant and inferred separately in one framework or updated combining with sparse coefficients calculation in an alternative and iterative algorithm in the other framework. The experiment has evaluated three types of blur, naming defocus blur, simple motion blur and camera shake blur. The experiment results confirm the effectiveness of the proposed frameworks.



There are no comments yet.


page 8


Simple method to eliminate blur based on Lane and Bates algorithm

A simple search method for finding a blur convolved in a given image is ...

Sparse Representation of a Blur Kernel for Blind Image Restoration

Blind image restoration is a non-convex problem which involves restorati...

SABER: A Systems Approach to Blur Estimation and Reduction in X-ray Imaging

Blur in X-ray radiographs not only reduces the sharpness of image edges ...

Spatial-Aware Dictionary Learning for Hyperspectral Image Classification

This paper presents a structured dictionary-based model for hyperspectra...

Geometric Moment Invariants to Motion Blur

In this paper, we focus on removing interference of motion blur by the d...

Spatially-Varying Blur Detection Based on Multiscale Fused and Sorted Transform Coefficients of Gradient Magnitudes

The detection of spatially-varying blur without having any information a...

Masked Face Image Classification with Sparse Representation based on Majority Voting Mechanism

Sparse approximation is the problem to find the sparsest linear combinat...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.