A NOVEL FEATURE EXTRACTION METHOD BASED ON LEGENDRE MULTI-WAVELET TRANSFORM AND AUTO-ENCODER FOR STEEL SURFACE DEFECT CLASSIFICATION

A Novel Feature Extraction Method Based on Legendre Multi-Wavelet Transform and Auto-Encoder for Steel Surface Defect Classification

Effective steel surface defect classification with low computational cost is essential for online quality inspection.The challenge of this task is large intra-class differences and unclear inter-class distances shown in various surface defects.This paper proposes a novel feature extraction method based on Legendre multi-wavelet transform and Auto-E

read more


Long-term assessment of whale shark population demography and connectivity using photo-identification in the Western Atlantic Ocean.

The predictable occurrence of whale sharks, Rhincodon typus, has been well documented in several areas.However, information relating to their migratory patterns, residency times and connectivity across broad spatial scales is limited.In the present study photo-identification data is used to describe whale shark population structure and connectivity

read more