Swin-transformer for weak feature matching.

Feature matching in computer vision is crucial but challenging in weakly textured scenes due to the lack of pattern repetition. We introduce the SwinMatcher feature matching method, aimed at addressing the issues of low matching quantity and poor matching precision in weakly textured scenes. Given the inherently significant local characteristics of image features, we employ a local self-attention mechanism to learn from weakly textured areas, maximally preserving the features of weak textures.

Feature matching based on local windows aggregation.

The core goal of feature matching is to establish correspondences between two images. Current methods without detectors achieve impressive results but often focus on global features, neglecting regions with subtle textures and resulting in fewer matches in areas with weak textures. This paper proposes a feature-matching method based on local window aggregation, which balances global features and local texture variations for more accurate matches, especially in weak-texture regions.

Robust optical multi-image encryption with lossless decryption Recovery Based on phase recombination and vector decomposition.

Image encryption is crucial for protecting image privacy and ensuring security. Encrypting large batches of images of different types and sizes simultaneously with losslessly decryption is often necessary. This paper proposes an optical asymmetric multi-image encryption algorithm to meet these demands.

Multi-image optical information hiding algorithm based on Fourier transform without hidden key transmission.

Existing optical information hiding algorithms for multiple images require generating hidden keys for embedded images, resulting in the transmission of numerous keys. This challenge undermines the usage of these algorithms in low-quality networks. To address this issue and enhance transmission efficiency, we present a multi-image optical information hiding algorithm based on Fourier transformation principles, which is employed to generate hidden frequency maps and carrier frequency maps.

Self-reported post-exertional fatigue in Gulf War veterans: roles of autonomic testing.

To determine if objective evidence of autonomic dysfunction exists from a group of Gulf War veterans with self-reported post-exertional fatigue, we evaluated 16 Gulf War ill veterans and 12 Gulf War controls. Participants of the ill group had self- reported, unexplained chronic post-exertional fatigue and the illness symptoms had persisted for years until the current clinical study. The controls had no self-reported post-exertional fatigue either at the time of initial survey nor at the time of the current study.

Motor neuron firing dysfunction in spastic patients with primary lateral sclerosis.

Patients with corticospinal tract dysfunction have slow voluntary movements with brisk stretch reflexes and spasticity. Previous studies reported reduced firing rates of motor units during voluntary contraction. To assess whether this firing behavior occurs because motor neurons do not respond normally to excitatory inputs, we studied motor units in patients with primary lateral sclerosis, a degenerative syndrome of progressive spasticity.

[Study on solid phase extraction and spectrophotometric determination of vanadium in environmental samples with 2-(2-quinolinylazo)-1,3-dihydroxidebenzene].

Based on the color reaction of 2-(2-quinolinylazo)-1,3-dihydroxidebenzene (QADHB) with vanadium (v) and the solid phase extraction of its colored complex with C18 cartridge, a new method for the determination of vanadium was studied. In the presence of CTMAB and citric acid-sodium hydroxide buffer solution (pH 3.5) medium.