Showing 2,721 - 2,740 results of 20,631 for search '"Image"', query time: 0.09s Refine Results
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    Research on Application of the Feature Transfer Method Based on Fast R-CNN in Smoke Image Recognition by Xi Cheng

    Published 2021-01-01
    “…This method uses a selective search algorithm to obtain the candidate images of the sample images. The preselected area coordinates and the sample image of visual task are used as network learning. …”
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    Reversible data hiding in encrypted images based on additive homomorphic encryption and multi-MSB embedding by Wenqian XIAO, Gaobo YANG, Dewang WANG, Ming XIA

    Published 2023-08-01
    “…Reversible Data Hiding in Encrypted Images (RDHEI) combines image encryption and reversible data hiding to improve the security and information transmission efficiency for the network transmission of images.In RDHEI, the conventional bit-by-bit encryption destroys the spatial correlation in an original image and has side effects on the preservation of embedding spaces.An approach for RHDEI was proposed, which utilized additive homomorphic encryption and a multi-MSB (Most Significant Bit) embedding strategy to create room within the encryption process.The original image was divided into non-overlapped blocks, and each block was subjected to the same key for additive homomorphic encryption.This helped transfer the pixel correlation within an original block to the encrypted image block as much as possible.To enhance security, the encrypted image was further subjected to an Arnold transformation on a block-by-block basis.The decision of whether data will be embedded in a block and the embedding capacity were determined by the pixel differences within the block and the predicted values.When a block was selected for embedding, a small number of LSBs (Least Significant Bits) were used to store the prediction differences, ensuring reversibility.The redundant multi-MSBs were embedded with secret information by bit replacement.For the possible errors caused by multi-MSBs prediction, an embedding position selection strategy was designed by vacating MSBs in terms of the values of prediction errors, then more MSBs were reserved for those pixels with less prediction errors.During decryption, the secret information can be accurately extracted from the multiple MSBs of the pixels in a block, and the image content can be losslessly recovered using the number of embedded multi-MSBs, predicted values, and prediction differences.Experimental results on the BOWS-2 image dataset demonstrate that the average embedding capacity is improved to 2.58 bit/pixel, surpassing existing methods.…”
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    Magnetic Resonance Imaging Evaluation in Patients with Linear Morphea Treated with Methotrexate and High-Dose Corticosteroid by Mohammad Shahidi-Dadras, Fahimeh Abdollahimajd, Razieh Jahangard, Ali Javinani, Amir Ashraf-Ganjouei, Parviz Toossi

    Published 2018-01-01
    “…The aim of this study was to document magnetic resonance imaging (MRI) changes in patients with linear morphea who were treated with methotrexate (MTX) and high-dose corticosteroid. …”
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    Frequency and Significance of Abnormal Pancreatic Imaging in Patients with BRCA1 and BRCA2 Genetic Mutations by Elie Chahla, Antonio Cheesman, Suzanne M. Mahon, Robert W. Garrett, Ben P. Bradenham, Theresa L. Schwartz, Louay Omran, Jason R. Taylor, Samer Alkaade

    Published 2016-01-01
    “…Only 20/66 (30%) had abdominal imaging (14 BRCA1 and 6 BRCA2 patients). Of those patients with abdominal imaging, abnormal pancreatic imaging findings were detected in 7/20 (35%) cases. …”
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    Plant height measurement using UAV-based aerial RGB and LiDAR images in soybean by Lalit Pun Magar, Jeremy Sandifer, Deepak Khatri, Sudip Poudel, Suraj KC, Buddhi Gyawali, Maheteme Gebremedhin, Anuj Chiluwal

    Published 2025-01-01
    “…Studies have demonstrated the effectiveness of both RGB and LiDAR images in estimating plant height in several crops. …”
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    Prevention of Cardiomyopathy in Transfusion-Dependent Homozygous Thalassaemia Today and the Role of Cardiac Magnetic Resonance Imaging by Athanassios Aessopos, Vasilios Berdoukas, Maria Tsironi

    Published 2009-01-01
    “…Recently the ability to determine the degree of cardiac iron overload, through cardiac magnetic resonance imaging (CMR) has allowed more logical approaches to iron removal, particularly from the heart. …”
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