Deep hierarchical guidance and regularization learning for end-to-end depth estimation

We propose a depth map inference system from monocular videos based on a novel dataset for navigation that mimics aerial footage from gimbal stabilized monocular camera in rigid scenes. Unlike most navigation datasets, the lack of rotation implies an easier structure from motion problem which can be leveraged for different kinds of tasks such as depth inference and obstacle avoidance. We also propose an architecture for end-to-end depth inference with a fully convolutional network. Results show that although tied to camera inner parameters, the problem is locally solvable and leads to good quality depth prediction.

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Efficient Monocular Depth Estimation with Transfer Feature Enhancement

International Journal of Circuits, Systems and Signal Processing ◽

10.46300/9106.2021.15.127 ◽

2021 ◽

Vol 15 ◽

pp. 1165-1173

Author(s):

Ming Yin

Keyword(s):

State Of The Art ◽

Depth Estimation ◽

Kernel Size ◽

Training Time ◽

Lower Error Rate ◽

Proposed Model ◽

Ill Posed ◽

Monocular Image ◽

Monocular Depth ◽

End Depth

Estimating the depth of the scene from a monocular image is an essential step for image semantic understanding. Practically, some existing methods for this highly ill-posed issue are still in lack of robustness and efficiency. This paper proposes a novel end-to-end depth esti- mation model with skip connections from a pre- trained Xception model for dense feature extrac- tion, and three new modules are designed to im- prove the upsampling process. In addition, ELU activation and convolutions with smaller kernel size are added to improve the pixel-wise regres- sion process. The experimental results show that our model has fewer network parameters, a lower error rate than the most advanced networks and requires only half the training time. The evalu- ation is based on the NYU v2 dataset, and our proposed model can achieve clearer boundary de- tails with state-of-the-art effects and robustness.

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Surgical management of extracranial carotid artery aneurysms

VASA ◽

10.1024/0301-1526/a000528 ◽

2016 ◽

Vol 45 (3) ◽

pp. 223-228 ◽

Cited By ~ 2

Author(s):

Jan Paweł Skóra ◽

Jacek Kurcz ◽

Krzysztof Korta ◽

Przemysław Szyber ◽

Tadeusz Andrzej Dorobisz ◽

...

Keyword(s):

Carotid Artery ◽

Surgical Management ◽

Minor Stroke ◽

Stroke Rate ◽

Extracranial Carotid Artery ◽

Long Term Follow Up ◽

End To End ◽

Dacron Patch ◽

Major Stroke

Abstract. Background: We present the methods and results of the surgical management of extracranial carotid artery aneurysms (ECCA). Postoperative complications including early and late neurological events were analysed. Correlation between reconstruction techniques and morphology of ECCA was assessed in this retrospective study. Patients and methods: In total, 32 reconstructions of ECCA were performed in 31 symptomatic patients with a mean age of 59.2 (range 33 - 84) years. The causes of ECCA were divided among atherosclerosis (n = 25; 78.1 %), previous carotid endarterectomy with Dacron patch (n = 4; 12.5 %), iatrogenic injury (n = 2; 6.3 %) and infection (n = 1; 3.1 %). In 23 cases, intervention consisted of carotid bypass. Aneurysmectomy with end-to-end suture was performed in 4 cases. Aneurysmal resection with patching was done in 2 cases and aneurysmorrhaphy without patching in another 2 cases. In 1 case, ligature of the internal carotid artery (ICA) was required. Results: Technical success defined as the preservation of ICA patency was achieved in 31 cases (96.9 %). There was one perioperative death due to major stroke (3.1 %). Two cases of minor stroke occurred in the 30-day observation period (6.3 %). Three patients had a transient hypoglossal nerve palsy that subsided spontaneously (9.4 %). At a mean long-term follow-up of 68 months, there were no major or minor ipsilateral strokes or surgery-related deaths reported. In all 30 surviving patients (96.9 %), long-term clinical outcomes were free from ipsilateral neurological symptoms. Conclusions: Open surgery is a relatively safe method in the therapy of ECCA. Surgical repair of ECCAs can be associated with an acceptable major stroke rate and moderate minor stroke rate. Complication-free long-term outcomes can be achieved in as many as 96.9 % of patients. Aneurysmectomy with end-to-end anastomosis or bypass surgery can be implemented during open repair of ECCA.

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Reliability of the Mangled Extremity Severity Score in the Management of Peripheral Vascular Injuries in Children: A Retrospective Review

International Journal of Angiology ◽

10.1055/s-0040-1720970 ◽

2020 ◽

Author(s):

Ahmed Mousa ◽

Ossama M. Zakaria ◽

Mai A. Elkalla ◽

Lotfy A. Abdelsattar ◽

Hamad Al-Game'a

Keyword(s):

Severity Score ◽

Vein Graft ◽

Bypass Surgery ◽

Age Groups ◽

Vascular Injuries ◽

Peripheral Vascular ◽

Group Iii ◽

Mangled Extremity ◽

Group I ◽

End To End

AbstractThis study was aimed to evaluate different management modalities for peripheral vascular trauma in children, with the aid of the Mangled Extremity Severity Score (MESS). A single-center retrospective analysis took place between 2010 and 2017 at University Hospitals, having emergencies and critical care centers. Different types of vascular repair were adopted by skillful vascular experts and highly trained pediatric surgeons. Patients were divided into three different age groups. Group I included those children between 5 and 10 years; group II involved pediatrics between 11 and 15 years; while children between 16 and 21 years participated in group III. We recruited 183 children with peripheral vascular injuries. They were 87% males and 13% females, with the mean age of 14.72 ± 04. Arteriorrhaphy was performed in 32%; end-to-end anastomosis and natural vein graft were adopted in 40.5 and 49%, respectively. On the other hand, 10.5% underwent bypass surgery. The age groups I and II are highly susceptible to penetrating trauma (p = 0.001), while patients with an extreme age (i.e., group III) are more susceptible to blunt injury (p = 0.001). The MESS has a significant correlation to both age groups I and II (p = 0.001). Vein patch angioplasty and end-to-end primary repair should be adopted as the main treatment options for the repair of extremity vascular injuries in children. Moreover, other treatment modalities, such as repair with autologous vein graft/bypass surgery, may be adopted whenever possible. They are cost-effective, reliable, and simple techniques with fewer postoperative complication, especially in poor/limited resources.

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WS-Security on PRODML

ACMIT Proceedings ◽

10.33555/acmit.v1i1.16 ◽

2014 ◽

Vol 1 (1) ◽

pp. 9-34

Author(s):

Bobby Suryajaya

Keyword(s):

Web Services ◽

Digital Signature ◽

Data Transfer ◽

Web Services Security ◽

Soap Message ◽

Simulation Results ◽

End To End

SKK Migas plans to apply end-to-end security based on Web Services Security (WS-Security) for Sistem Operasi Terpadu (SOT). However, there are no prototype or simulation results that can support the plan that has already been communicated to many parties. This paper proposes an experiment that performs PRODML data transfer using WS-Security by altering the WSDL to include encryption and digital signature. The experiment utilizes SoapUI, and successfully loaded PRODML WSDL that had been altered with WSP-Policy based on X.509 to transfer a SOAP message.

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Mit MindSphere die digitale Transformation vorantreiben

Controlling ◽

10.15358/0935-0381-2019-6-63 ◽

2019 ◽

Vol 31 (6) ◽

pp. 63-65

Author(s):

Carsten Speckmann ◽

Péter Horváth

Keyword(s):

Digitale Transformation ◽

Internet Der Dinge ◽

End To End

MindSphere ist das cloudbasierte, offene IoT-Betriebssystem von Siemens. Es verbindet Produkte, Anlagen, Systeme und Maschinen und ermöglicht es so, die Fülle von Daten aus dem Internet der Dinge (IoT) mit umfangreichen Analysen zu nutzen. Als eine sichere, skalierbare End-to-End-Lösung für die Industrie sorgt MindSphere für die Konnektivität von Anlagen und liefert somit handlungsrelevante Geschäftserkenntnisse, die zur Steigerung der Produktivität und Effizienz im gesamten Unternehmen nutzbar gemacht werden können. MindSphere ist weltweit verfügbar.

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