A5003421693- Advanced Image and Video Retrieval Techniques
- Advanced Image Fusion Techniques
- Medical Image Segmentation Techniques
- Robotics and Sensor-Based Localization
- Inorganic Chemistry and Materials
- Remote Sensing and Land Use
- Boron and Carbon Nanomaterials Research
- Advancements in Battery Materials
- Image and Video Stabilization
- Advanced Measurement and Detection Methods
- Metal and Thin Film Mechanics
- Thermal Expansion and Ionic Conductivity
- Remote-Sensing Image Classification
- High-pressure geophysics and materials
- Advanced Vision and Imaging
- Image Enhancement Techniques
- Image and Signal Denoising Methods
- Advanced Computing and Algorithms
- Image Processing Techniques and Applications
- Sparse and Compressive Sensing Techniques
- Robotic Path Planning Algorithms
Sichuan University of Arts and Science
2020-2024
A high level of computation is required for edge detection in color images captured by unmanned aerial vehicles (UAVs) to address issues, such as noise, distortion, and information loss. Thus, an method UAV-captured based on the improved whale optimization algorithm (WOA) proposed this study. In method, image pixels are represented quaternions, global random position variables exchange mechanism introduced into walk foraging formula WOA. Further, a disturbance factor also predator-prey...
Abstract With the extensive application of unmanned aerial vehicles (UAVs), there is an increasing demand for fast processing coloured UAV images. The image pixels are usually represented by quaternion vectors with three bands visible light corresponding to imaginary parts pure quaternion. Accordingly, colour edge points can be determined based on polar coordinating rotation principle. Here, a quaternion‐based improved cuckoo algorithm proposed perform UAVs In particular, novel guiding...
Restoration of hyperspectral images (HSI) is a crucial step in many potential applications as preprocessing step. Recently, low-rank tensor ring factorization was applied for HSI reconstruction, which has high-order tensors’ powerful and generalized representation ability. Although TR-based approaches with nuclear norm regularization achieved successful results restoring images, there still room improved approximation. In this article, we propose novel Auto-weighted Tensor Ring Factorization...
In this study, synchrotron radiation X-ray diffraction is used to study the equation of state vanadium nitride in a diamond anvil cell at room temperature. Experimental results reveal high stability cubic structure up 76 GPa pressure. addition, bulk modulus derived from XRD data K0 = 328.4(2.8) with K0′ 5.86(0.14). Finally, pressure compression behavior investigated 80 using density functional theory first-principle calculations, and obtained elastic 316 GPa. Vanadium not magnetic whole...
An improved ORB feature point purification method has been proposed to address the problem of large matching error and low image registration rate in oriented FAST rotated BRIEF (ORB) color algorithm. Pure virtual quaternions were used represent pixels this method, an algorithm was detect points at first. The firework divide detected into key areas, auxiliary small influence depending on degree attachment. area subsidiary are required points. In order further improve efficiency points,...
Abstract Traditional image stitching method based on SIFT algorithm that the time is long and efficiency low, effect not ideal. In this paper, location of parasitic nest in cuckoo mutated, an evolutionary reduction function proposed for step factor probability discovery. On basis this, improved proposed, edge points are solved by algorithm, comparison between feature made. The results show obviously reduced speed quality splicing obviously, it can fully meet needs practical application.
Image edge detection plays a crucial role in image analysis and recognition. However, when dealing with color images captured by unmanned aerial vehicles (UAVs), there are certain limitations, such as large operations, multiple noise sources, easy distortion, missing information detection. To address these shortcomings, this study proposes UAV method based on an enhanced fireworks algorithm. In method, the pixels of represented using quaternions. The explosion amplitude formula is divided...
At room temperature, the equation of state (EOS) Li2MnO3 has been studied by synchrotron radiation X-ray diffraction (XRD) in a diamond anvil cell (DAC). The results showed that hexagonal structure is stable to maximum pressure 28 GPa. bulk modulus derived from XRD data K0=106.2(4.2) GPa with K0'=16.92(1.28). In addition, we have high-pressure electrical conductivity DAC 20.6 It found resistance decreases increase and changes continuously exponential function.