We hereby proposed and experimentally demonstrated an active polarization imaging technique, based on wavelength selection, for seeing through highly turbid water where targets are always visually lost. The method was realized by making use of the dependence light scattering in water. Red illumination selected to minimize occurring propagation guarantee accurate estimation degree polarization. Experiments demonstrate its contribution turn from "undetectable" "detectable."

Underwater imaging provides human vision system friendly images; however, it often suffers from severe image degradation. This research developed an underwater polarization model, which considers the water scattering effect, as well absorption effect. It fully explored information of target scene that backscattered light is partially polarized and unpolarized. Then first estimated removed. The scene's distance derived based upon information, then applied to develop a distance-based...

In view of the tremendous improvements in dynamic performance automobiles and changes composition drivers over past several decades, it is valuable to examine distribution automobile’s lateral acceleration new environments. The accelerations, speeds, trajectory curvatures a passenger car on twelve highways with different design speeds topographies were obtained. By synchronizing, matching, counting, was obtained, level driving comfort estimated. The<mml:math...

Underwater imaging is a promising but challenging topic due to the scattering particles in water, which result serious light attenuation. Therefore, underwater images suffer from low-contrast and low-resolution issues. In this study, order recover high-quality images, point spread functions (PSFs) are estimated by slant-edge method. The experiment modulates illumination source deal with backscattering imager take two orthogonally polarized states. This method benefits satisfactory edge...

Currently the research in binocular stereo vision area mainly focuses on camera calibration and matching. For calibration, to estimate camera's parameters is of vital very importance for acquiring better three-dimensional positioning reconstruction accuracy. This investigates a system their effects Three different types accuracy are probed with semi-physical simulation. Firstly, mathematic model established major sources parameter errors analyzed measuring system. Secondly, simulation...

The classic midpoint method for triangulation is extremely fast, but usually labelled as inaccurate. We investigate the cost function that tries to minimize, and result shows prone underestimate accuracy of measurement acquired relatively far from three-dimensional (3-D) point. Accordingly, used in this letter enhanced by assigning a weight each measurement, which inversely proportional distance between 3-D point corresponding camera center. After analyzing gradient modified function, we...

ObjectiveThe aim of this study is to comprehensively investigate the prevalence and distribution patterns three common genetic variants associated with hearing loss (HL) in Chinese neonatal population. Methods: Prior June 30, 2023, an extensive search screening process was conducted across multiple literature databases. R software utilized for conducting meta-analyses, cartography, correlation analyses. Results: Firstly, our identified a total 99 studies meeting inclusion criteria. Notably,...

Accurate passive 3D face reconstruction is of great importance with various potential applications. Three-dimensional polarization a promising approach, but one bothered by serious deformations caused an ambiguous surface normal. In this study, we propose learning-based method for reconstruction. It first calculates the normal each microfacet at pixel level based on diffusely reflected light face, where no auxiliary equipment, including artificial illumination, required. Then, CNN-based 3DMM...

To balance the accuracy and efficiency in multiple-view triangulation with sequential images, a high-efficiency propagation-based incremental (INT) method, carving three-dimensional (3D) scene points by updating incoming feature track one without iterations, is proposed. Based on INT more accurate iteration-limited method also established few iterations to bound propagated errors, ensuring of subsequent 3D reconstruction. Finally, experimental results demonstrate that proposed methods can...

Longitudinal acceleration is an important parameter used to describe a vehicle's kinematic behaviour and driver behaviour. Existing research on this mainly focuses urban roads. In study, operational data were collected from vehicles travelling two-lane mountain roads with complex shapes under normal driving conditions. The longitudinal acceleration's relationship sensitivity road geometry speed analysed. results showed that the inflection points of cumulative frequency profile...

To address the issue that sparse point cloud maps constructed by SLAM cannot provide detailed information about measured objects, and image sequence-based measurement methods have problems with large data volume cumulative errors, this paper proposes a scene method integrates sequences an improved LiDAR SLAM. By introducing plane features, positioning accuracy of is enhanced, real-time odometry poses are generated. Simultaneously, system captures object using synchronized cameras, NeRF used...

Underwater imaging's promising but challenging. This paper addresses a method to realize real-time underwater imaging by estimating DOP of backscatter automatically based upon polarization signatures images. The results demonstrate the achievability video processing.

Cost aggregation is the most important step in a local stereo matching algorithm. In this paper, novel cost method based on Adaptive Shape Support Window (ASSW) proposed. There are two main parts: At first we construct support skeleton anchored each pixel with four varying arm lengths decided color similarity, as result, window integral of multiple horizontal segments spanned by pixels vertical neighboring established; then utilize extended implementation guided filtering to aggregate volume...

The advance of urbanization makes existing bus line network can not meet the travel needs increasing urban and rural residents, but reasonable integration planning is able to effectively solve this problem. In paper, as a starting point establish bi-level programming model planning, goal upper minimum total investment in construction public transport sector target lower resistance minimum. Then, based on genetic algorithm put forward steps flowchart. Established by analyzing studies provide...

The mineral is the important data in Lunar Exploration. main objective of this work to segmentation lunar craters with C-V Model, and quantify images terrain abundance surface minerals based on Crater distribution law Soil Characterization Consortium set Hapke model reflectance. Actual mare region as an example, method analysis result are basically same published literature. This can be simple rapid in-time implemented real-time exploration.