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Omni directional video coding rate distortion optimization method based on weighted-to-spherically-uniform structural similarity
Published 2019-02-01“…Aiming at the shortcomings of the coding rate distortion model in traditional video coding,considering the characteristics of equal rectangular omnidirectional video,a method of omnidirectional video coding rate distortion optimization based on spherical weighted structural similarity (WS-SSIM) was proposed.By considering the distortion of the internal structural similarity of the projection plane and the relationship between the spherical distortion and the projection plane distortion,the “spherical weighted structural similarity” was proposed to describe the degree of distortion of the planar omnidirectional image local block relative to the viewing sphere,which was applied to the rate-distortion optimization process of omnidirectional video coding and adaptive selection of quantization parameters to improve vision-based coding efficiency.The experimental results show that compared with the HEVC video coding standard HM16.9 test platform,the proposed method can save an average of 24.48% code rate under the same visual quality,which indicates that the method has significant performance for improving the omnidirectional video coding rate distortion performance.…”
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Impact of Joule Heating and Hydro-Magnetic Effects on Mixed Convection in Porous Cavity Using Lattice Boltzmann Method
Published 2025-06-01“…The lattice Boltzmann method (LBM) is applied to employ the governing transport equations. …”
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Method for Determining the Number of Propellers in an Aircraft from a Radar Image Obtained by Inverse Synthesis of the Antenna Aperture
Published 2024-10-01“…The radar image allows to visualize the blades of the rotors included in the functional group (traction rotors of an aircraft, rotors of a twin-rotor helicopter, rotors of a multicopter). …”
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Online high speed detection method for end face quality of cored filter rods under complex conditions
Published 2025-03-01“…Therefore, this paper proposes an efficient visual inspection method, which combines the ellipse fitting algorithm to accurately obtain the coordinates of the filter rods and their mandrel centre points, and evaluates the mandrel deviation through the Euclidean distance calculation to judge the product qualification. …”
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A Review of Deep Learning-Based Remote Sensing Image Caption: Methods, Models, Comparisons and Future Directions
Published 2024-11-01“…Furthermore, we compare and analyze the results of the latest models and the pros and cons of different deep learning methods. Lastly, future directions of RSIC are suggested. …”
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A Low-Frequency Oscillation Identification Method for Power System Based on Adaptive Generalized S-Transform with Bat Algorithm
Published 2024-01-01“…The superiority of the proposed method is verified, which can greatly improve the time-frequency resolution of PMU active power data signal and has effective noise immunity.…”
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Brain image registration optimization method via SAM-Med3D multi-scale feature migration
Published 2025-01-01“…Aiming at the problems of insufficient anatomical structure constraints and limited feature expression ability in medical image registration, this paper proposes a registration optimization method based on SAM-Med3D and dynamic large kernel convolution. …”
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Identification method of security in patrol inspection for distribution network equipment based on rapid discrimination of drone video image
Published 2025-04-01“…In view of the characteristics of various types of distribution network equipment, heavy workload of daily security inspection and many potential safety hazards, moreover, the traditional manual inspection method is difficult to quickly identify a variety of security vulnerabilities of distribution network equipment, this paper proposes an identification method of security in patrol inspection for distribution network equipment based on four-rotor drone. …”
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New Methods for Predicting Strain Demand of Arctic Gas Pipelines across Permafrost under Frost Heave Displacement
Published 2022-01-01“…Utilizing C# language and object-oriented visual programming techniques, a new customized parametric strain calculation software was developed. …”
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DeFRCN-MAM: DeFRCN and multi-scale attention mechanism-based industrial defect detection method
Published 2024-12-01“…To verify the effectiveness of the proposed one, we compare them with other classical FSOD methods. The superiority of the proposed method is obvious.…”
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Predictors for Retrograde Ureteral Stenting Failure as an Initial Drainage Method for Emergent Complicated Acute Calculus Obstructive Uropathy
Published 2021-07-01“…ObjectiveTo define predictors for initial retrograde ureteral stenting (RUS) failure with the need for the percutaneous nephrostomy (PCN) insertion as a drainage method in patients with complicated acute calculus obstructive uropathy. …”
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Methods for tree cover extraction from high resolution orthophotos and airborne LiDAR scanning in Spanish dehesas
Published 2019-06-01“…An alternative is the extraction of tree cover from aerial imagery using automated methods, on spectral derivate products (i.e. NDVI) or LiDAR point clouds. …”
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A Method for Enhancing the Contrast of Medical Video Images with Adaptive Correction Depth for Clinical Decision Support Systems
Published 2022-11-01“…The rapid development of sensors and imaging devices, as well as the advancement of modern diagnostic methods, facilitate the transition from the visual examination of images performed by a medical specialist towards the widespread use of automated diagnostic systems referred to as clinical decision support systems.Aim. …”
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Efficient Cow Body Condition Scoring Using BCS-YOLO: A Lightweight, Knowledge Distillation-Based Method
Published 2024-12-01“…Monitoring the body condition of dairy cows is essential for ensuring their health and productivity, but traditional BCS methods—relying on visual or tactile assessments by skilled personnel—are subjective, labor-intensive, and impractical for large-scale farms. …”
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Research on the Automatic Recognition Method of Micro-nano Regeneration Rubber Filler Dispersion in Scanning Electron Microscope Images
Published 2025-07-01“…The performance of composite materials filled with micro-nano regenerative rubber depends critically on the degree of filler dispersion. However, current methods for assessing dispersion rely on subjective visual estimation of electron microscope images, which lack quantitative precision and are prone to human error, especially given the complex distribution of micro-nano particles. …”
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