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Deepfake detection method based on patch-wise lighting inconsistency
Published 2023-02-01“…The rapid development and widespread dissemination of deepfake techniques has caused increased concern.The malicious application of deepfake techniques also poses a potential threat to the society.Therefore, how to detect deepfake content has become a popular research topic.Most of the previous deepfake detection algorithms focused on capturing subtle forgery traces at pixel level and have achieved some results.However, most of the deepfake algorithms ignore the lighting information before and after generation, resulting in some lighting inconsistency between the original face and the forged face, which provided the possibility of using lighting inconsistency to detect deepfake.A corresponding algorithm was designed from two perspectives: introducing lighting inconsistency information and designing a network structure module for a specific task.For the introduction of lighting task, a new network structure was derived by designing the corresponding channel fusion method to provide more lighting inconsistency information to the network feature extraction layer.In order to ensure the portability of the network structure, the process of feature channel fusion was placed before the network extraction information, so that the proposed method can be fully planted to common deepfake detection networks.For the design of the network structure, a deepfake detection method was proposed for lighting inconsistency based on patch-similarity from two perspectives: network structure and loss function design.For the network structure, based on the characteristic of inconsistency between the forged image tampering region and the background region, the extracted features were chunked in the network feature layer and the feature layer similarity matrix was obtained by comparing the patch-wise cosine similarity to make the network focus more on the lighting inconsistency.On this basis, based on the feature layer similarity matching scheme, an independent ground truth and loss function was designed for this task in a targeted manner by comparing the input image with the untampered image of this image for patch-wise authenticity.It is demonstrated experimentally that the accuracy of the proposed method is significantly improved for deepfake detection compared with the baseline method.…”
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2842
YOLOv7-CWFD for real time detection of bolt defects on transmission lines
Published 2025-01-01“…The DySample upsampling operator is implemented to replace the upsampling module in the neck fusion network, minimizing information loss during the upsampling process. …”
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2843
Esthetical Properties of Single-Shade and Multishade Composites in Posterior Teeth
Published 2023-01-01“…Then, class I preparations were made, and each tooth was restored twice, using two different composites of MS/opacity layering material (Admira Fusion—Voco) and an SS/opacity bulk-fill composite (Admira Fusion X-tra—Voco). …”
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Antibody-based delivery of interleukin-2 modulates the immunosuppressive tumor microenvironment and achieves cure in pancreatic ductal adenocarcinoma syngeneic mice
Published 2025-01-01“…This innovative antibody-cytokine fusion protein improves therapeutic outcomes, paving the way for novel targeted treatment strategies in PDAC.…”
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High-performance CT features supporting accurate pre-operative tumor staging in colon cancer
Published 2025-02-01“…We aimed to pathologically interpret the key CT findings in order to identify reliable markers for pre-treatment staging of colon cancer.Patients and methodsThe following CT features from 136 colon adenocarcinomas were analyzed: colon wall pliability, outline contour, pericolic fat attenuations and vascularity, tumor fusion with adjacent organs, ascites, tumor size, and relevance between tumor and retroperitoneal fascia. …”
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Primary Idiopathic Osteoarthropathy: Could It Be Related to Alcoholism?
Published 2017-01-01Get full text
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2848
Bilateral Chylothorax as a Unique Presentation of Pancreaticobiliary or Upper Gastrointestinal Cancer
Published 2019-01-01Get full text
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Unilateral Enlarged Vestibular Aqueduct Syndrome and Bilateral Endolymphatic Hydrops
Published 2017-01-01Get full text
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Perioperative nursing management for patients undergoing HoLEP with MOSES technology (MOSES-HoLEP术围手术期的护理)
Published 2021-02-01Get full text
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Treatment of convulsive status epilepticus in Brazil: a review
Published 2025-01-01Get full text
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Total Plasma Exchange for Hypertriglyceridaemia Complicated by Acute Pancreatitis: A Case Report
Published 2022-06-01Get full text
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Thoracic Block Technique Associated with Positive End-Expiratory Pressure in Reversing Atelectasis
Published 2015-01-01Get full text
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