Robust and effective detection of a small target in an infrared maritime image is key technology search tracking applications. Infrared challenging task due to the factors such as dim targets various complex backgrounds caused by sun glitters strong waves. In this article, integrated saliency measure (ITSM) based on local nonlocal spatial information proposed improve performance. We combine heterogeneity property self-correlation background with targets' sparsity separate real from clutters....

Efficient small infrared (IR) maritime target detection in heavy waves is a key and challenging task distress search rescue systems. The current methods are struggling to enhance targets suppress because of the similar local contrast. In this letter, weighted multidirectional gradient (WMDG) measure presented. First, candidate extracted via facet model. Then difference information constructed calculate average cumulative (ACMG) achieve directional (DDM). Consequently, final saliency...

Infrared small maritime target detection under strong ocean waves, a challenging task, plays key role in distress search and rescue applications. Many methods based on directionality or gradient properties have proven to perform well for infrared images with heterogeneous scenarios. However, they tend poorly when facing wave background, mainly due the following: 1) low signal-to-clutter ratio intensity targets; 2) some waves high local contrast that may be similar higher than targets. To...

When detecting diverse infrared (IR) small maritime targets on complicated scenes, the existing methods get into trouble and unsatisfactory performance. The main reasons are as follows: 1) affected by target characteristics ambient temperature so on, both bright dark may exist IR images in practical application 2) spatial information temporal correlation of not fully excavated. To these problems, we propose a robust anti-jitter spatial–temporal trajectory consistency (ASTTC) method, idea...

According to the characteristics of power harmonic which includes steady and transient components wavelet analysis ability processes unsteady signals has characteristic multi-resolution analysis, method transform is applied detection harmonic. The using detect various harmonics in be measured presented Matlab complete simulation experiment. results show that signal can exactly extracted separated fundamental high order by packet transform. Therefore, a valid system.

In this paper, a method combining PnP and OI algorithms is developed to measure the pose of humanoid robot in high precision order play table tennis. The PnP-based algorithm employed obtain rough pose, which taken as initial value algorithm. optimizes result ensure orthogonal orientation matrix pose. Considering real-time, accuracy, robustness measurement, sort fast feature extraction including edge detection, line intersection computation adopted get four corners precision. experiments...

A flying model and a rebound are presented for the trajectory prediction of table tennis ball in this paper based on assumption that would fly without spin before rebound. The analytic solution is also given. Z axis height loss coefficient, learning method one order polynomial proposed. Experiments show results proposed models accurate enough to satisfy need return successfully.

Acne vulgaris is a common skin condition that affects large proportion of teenagers and young adults. Despite the availability various treatment options, many patients experience inadequate relief or intolerable side effects. Photodynamic therapy (PDT) growing interest in acne vulgaris, with 5-Aminolaevulinic acid (ALA) being one most commonly used photosensitizers. Adalimumab biologic medication to treat inflammatory conditions such as Psoriasis Hidradenitis suppurativa (HS), which targets...

Two humanoid robots are used to play table tennis with each other. For robot, three cameras and a computer equipped form stereovision system monocular vision system. The consisting of two smart measures the 3-dimensional position ball. It adopts parallel processing mode in order realize hundred frames level measurement per second. A high-speed digital camera compose system, which pose robot relative via color mark attached on robot. synchronized I/O signals. systems for by time verification....

This paper presents a new approach for pupil localization in multi-view eyeballs under ordinary light conditions. There are two key steps. The first step is eye detection, which obtained by facial points using Active Shape Mode. Face detection also used to provide the initial search area and enhance searching speed points. second process. In this stage, gray distribution sliding window technique coarse position of pupil, similar local analysis method employed pupil's fine position. A set...

Based on kansei engineering theory, with mobile phone model as the research object, speciation analysis of deconstruction, study correlation between form design elements and subjective feeling. To obtain simulation modeling samples by concept orthogonal test. Through collecting a large number perceptual image vocabulary, multiple scale method, class cluster method was applied to typical filtered emotional shape evaluation metrics. Using sample obtained from screened representative semantic...

In this paper, a novel method for unbiased curvilinear structure extraction of cartoon images is proposed. Our based on Delaunay triangulation can extract two types curves, decorative curves and boundary with sub-pixel accuracy. order to make it, we start by estimating edge points from both using the information their surroundings. According properties points, not only estimate precise position curve but also find connection relationships points. Compared related algorithm, our compute and,...

Inspection, auscultation and olfaction, inquiring, palpation, called si-zhen in Chinese, are four diagnostic methods Traditional Chinese Medicine (TCM) which reflect a general identification to the variation of human body done by subjective thinking. Face diagnosis is one most precious widely used inspection, but with great deal information experiential knowledge medical physicians past. In order meet requirement face objectivity, combining TCM theory physicians' clinical experience,...

In the use of airborne optoelectronic pod to track sea surface distress targets in harsh conditions, sudden vibration or steering a rescue helicopter can easily result loss target. order solve problem target process tracking, fast algorithm retrieval based on spatial location information is proposed this paper. The key idea method coordinate transformation transform corresponding previous frame lost and current infrared camera into two coordinates under same global system. According...

Aiming at the problem of real-time recognition in-orbit spacecraft state, a method for state based on neural network pattern is proposed by taking telemetry data solar array as analysis object. This uses every signal period unit to conduct identification. Through large number tests, results verify effectiveness and meet requirements monitoring with abnormal state.

In order to protect the integrity and copyright, digital watermarking embeded secret message into multi- media, which is not easy detect embedded watermarking, but determine distinction using of information redundancy randomness multimedia. According characteristics singular value decomposition (SVD) discrete wavelet transform (DWT) algorithm are combined SVD image matrix features multi-resolution DWT. Therefore, a new proposed in this paper. The values each band coefficients corresponding...

Using the harmonic characteristics of output voltage inverter to design an ameliorative filter which can suppress common-mode and differential-mode at same time. The simulation is done by MATLAB results show that long cables are allowed connect motor for filter. By altering parameters filter, overvoltage in be eliminated, plays a good role suppressing harmonics inverter.

Temperature gradient is one of the most important factors that cause large deformation aperture optical element in an inertial confinement fusion (ICF) laser driver. In this study, we measured ambient temperature around switchyard and analyzed distribution changing characteristics over time. The results indicated variation trends inside was almost same, gradients uppermost part were higher than bottom, temperatures centre both sides. Loading profile into finite model showed changed with...