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1.
Article in English | MEDLINE | ID: mdl-35533173

ABSTRACT

Deep feature fusion plays a significant role in the strong learning ability of convolutional neural networks (CNNs) for computer vision tasks. Recently, works continually demonstrate the advantages of efficient aggregation strategy and some of them refer to multiscale representations. In this article, we describe a novel network architecture for high-level computer vision tasks where densely connected feature fusion provides multiscale representations for the residual network. We term our method the ResDNet which is a simple and efficient backbone made up of sequential ResDNet modules containing the variants of dense blocks named sliding dense blocks (SDBs). Compared with DenseNet, ResDNet enhances the feature fusion and reduces the redundancy by shallower densely connected architectures. Experimental results on three classification benchmarks including CIFAR-10, CIFAR-100, and ImageNet demonstrate the effectiveness of ResDNet. ResDNet always outperforms DenseNet using much less computation on CIFAR-100. On ImageNet, ResDNet-B-129 achieves 1.94% and 0.89% top-1 accuracy improvement over ResNet-50 and DenseNet-201 with similar complexity. Besides, ResDNet with more than 1000 layers achieves remarkable accuracy on CIFAR compared with other state-of-the-art results. Based on MMdetection implementation of RetinaNet, ResDNet-B-129 improves mAP from 36.3 to 39.5 compared with ResNet-50 on COCO dataset.

2.
Article in Chinese | MEDLINE | ID: mdl-33540969

ABSTRACT

Objective:To investigate the olfactory function of patients with obstructive sleep apnea(OSA) without any treatment, and to providereference for clinical olfactory research. Methods:One hundred and thirty-one participants underwent polysomnography(PSG) overnight, and were divided into OSA group (observation group) and non-OSA group (control group) according to the results. The two groups were examined by the Korean version of the olfactory stick test Ⅱ(Korean Bersion) of Sniffin Sticks Test (KVSS Test Ⅱ). SPSS 26.0 statistical software were used to analyze the data. Results:There was a significant difference in the incidence of olfactory disorders between the observation group and the control group(χ²=12.000, P=0.001). The rate of olfactory disorders in patients with severe OSA was significantly higher than that in patients with mild OSA(P<0.05), and the proportion of patients with olfactory disorders increased with the increase of OSA severity(χ²=10.672, P=0.001). There was no statistically significant difference between the observation group and the control group in the severity of olfactory disorders(hyposmia and anosmia)(P=1.000). KVSS between two groups of Test Ⅱ total score has no statistical difference(t=1.166, P=0.249), the sense of smell recognition scores also has no statistical difference(t=1.598, P=0.116), but the olfactory threshold score and olfactory cognition scores were statistically significant(t=5.346, t=6.405, P<0.001). Conclusion:OSA has a negative effect on the sense of smell, and the severity of OSA is positively correlated with the incidence of olfactory disorder. OSA olfactory disorder is mainly anosmia, and the main manifestation is the decrease of olfactory cognitive scores.


Subject(s)
Olfaction Disorders , Sleep Apnea, Obstructive , Humans , Incidence , Polysomnography , Sleep Apnea, Obstructive/complications , Smell
3.
Article in Chinese | MEDLINE | ID: mdl-32086921

ABSTRACT

Objective:The aim of this study is to investigate the incidence of dysosmia in patients with and without nasal polyps, and the impact of dysosmia on the quality of life and mental health in patients with Sinusitis. Method:A total of 105 randomly selected patients with Sinusitis were divided into two groups based on the results of the Sniffin's Sticks olfactory examination: The dysosmia group and the non dysosmia group, the quality of life (Qol) of olfaction quality of life scale and SCL-90 symptom checklist-90(SCL-90) were scored respectively. Result:The incidence of olfactory disorders in chronic sinusitis patients with nasal polyps was significantly higher than those without nasal polyps(χ²=37.133, P<0.001). The quality of life score of the olfactory disturbance scale the quality of life score of the olfactory disturbance group(26.5±5.9) was significantly higher than that of the non olfactory disturbance group(11.76±3.58)(t=14.30, P<0.0001). Life quality score(30.2±4.9) of female patients with olfactory dysfunction was significantly higher than that of male patients(22.3±4.0)(P<0.001), The score of SCL-90 of chronic sinusitis patients with olfactory dysfunction(n=64) is 6.6(6.0-8.0), while the score of SCL-90 of chronic sinusitis patients without olfactory dysfunction(n=41) is 7.0(6.2-7.6), and there was no significant difference between the two groups(P>0.05). Conclusion:The risk of dysosmia in patients with Sinusitis polyps was significantly higher than that in patients without nasal polyps, and the quality of life in patients with Sinusitis was significantly lower than that in patients without sinusitis, women also had a greater impact on their quality of life than men, and Sinusitis patients with dysosmia had no significant impact on their mental health.


Subject(s)
Mental Health , Nasal Polyps/psychology , Olfaction Disorders/psychology , Quality of Life , Sinusitis/psychology , Chronic Disease , Female , Humans , Male
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