Green design horizon, hand-painted rendering performance techniques to explore

Green design horizon, explore the hand-painted rendering performance techniques,from conception to take as, composition distribution, global and local processing, local expansion method, the performance of rendering and other aspects of analysis and propose countermeasures. Accumulation of professional material for designers and nutrients at the same time, raise awareness of the environment, space and natural understanding, To improve the aesthetic horizon, hand-painted rendering green design and students ability to innovate education is of great significance.

Realization Approaches of Hand-painted Pastel Art in Animation

In view of status quo and prospects of hand-painted animation,it is an important topic to promote the development of hand-painted animation,achieve its unique artistic effect,explore the approaches of realizing hand-painted pastel animation,grasp spiritual connotations of hand-painted pastel art in animation,and maintain the artistic vitality of hand-painted animation.This study focused on expression means of various arts,enriching artistic means of producing hand-painted pastel animations,improving the efficiency of hand-painted pastel animations,so as to form a complete artistic realization theoretical system of hand-painted pastel animations,and provide a technical and theoretical foundation for the development of traditional hand-painted animations.

Current Development of Hand-painted Pastel Animation Short Film

With the rapid development of audio-visual language, production of traditional hand-painted animation has failed to keep pace with the times. This paper discussed the current foreign and domestic researches on animation, and found that the researches still focused on application of technology or theories of animation arts. The study tried to integrate traditional hand painting with computer technology, produce hand-painted pastel animation, enrich the artistic forms of hand-painted pastel animation short fi lm, improve the effi ciency of handpainted pastel production, so as to form a complete artistic realization theory system of hand-painted pastel animation short fi lm, and provide a technological and theoretical support for the development of traditional hand-painted animation.

End-to-End Paired Ambisonic-Binaural Audio Rendering

Binaural rendering is of great interest to virtual reality and immersive media. Although humans can naturally use their two ears to perceive the spatial information contained in sounds, it is a challenging task for machines to achieve binaural rendering since the description of a sound field often requires multiple channels and even the metadata of the sound sources. In addition, the perceived sound varies from person to person even in the same sound field. Previous methods generally rely on individual-dependent head-related transferred function(HRTF)datasets and optimization algorithms that act on HRTFs. In practical applications, there are two major drawbacks to existing methods. The first is a high personalization cost, as traditional methods achieve personalized needs by measuring HRTFs. The second is insufficient accuracy because the optimization goal of traditional methods is to retain another part of information that is more important in perception at the cost of discarding a part of the information. Therefore, it is desirable to develop novel techniques to achieve personalization and accuracy at a low cost. To this end, we focus on the binaural rendering of ambisonic and propose 1) channel-shared encoder and channel-compared attention integrated into neural networks and 2) a loss function quantifying interaural level differences to deal with spatial information. To verify the proposed method, we collect and release the first paired ambisonic-binaural dataset and introduce three metrics to evaluate the content information and spatial information accuracy of the end-to-end methods. Extensive experimental results on the collected dataset demonstrate the superior performance of the proposed method and the shortcomings of previous methods.

经阴道超声联合3D-TVS Render成像诊断子宫内膜病变的临床价值分析

目的分析经阴道超声联合三维超声(3D-TVS)Render成像诊断子宫内膜病变的临床价值。方法回顾性分析2019年11月至2022年11月我院收治的123例子宫内膜病变患者的临床资料,术前或诊刮前均行经阴道超声、3D-TVS Render成像检查,以病理检查结果作为“金标准”,分析经阴道超声联合3D-TVS Render成像对子宫内膜病变的诊断价值。结果经病理检查结果显示,123例患者中子宫内膜癌24例,子宫内膜良性病变99例;子宫内膜癌患者经阴道超声检查的子宫内膜厚度(ET)高于良性病变患者,经3D-TVS Render成像检查的子宫内膜血管指数(VI)、血流指数(FI)、血管血流指数(VFI)高于良性病变患者(P<0.05);绘制ROC曲线结果显示,ET、VI、FI、VFI联合诊断子宫内膜病变的AUC为0.968,高于各指标单独诊断。结论经阴道超声联合3D-TVS Render成像对子宫内膜病变的诊断价值较高,值得临床推广应用。

Research and Application of Caideng Model Rendering Technology for Virtual Reality

With the development of virtual reality (VR) technology, more and more industries are beginning to integrate with VR technology. In response to the problem of not being able to directly render the lighting effect of Caideng in digital Caideng scenes, this article analyzes the lighting model. It combines it with the lighting effect of Caideng scenes to design an optimized lighting model algorithm that fuses the bidirectional transmission distribution function (BTDF) model. This algorithm can efficiently render the lighting effect of Caideng models in a virtual environment. And using image optimization processing methods, the immersive experience effect on the VR is enhanced. Finally, a Caideng roaming interactive system was designed based on this method. The results show that the frame rate of the system is stable during operation, maintained above 60 fps, and has a good immersive experience.

Cinema 4D中Team Render的构建与实现

渲染是一种计算机图形图像生成技术,它以存储在计算机中的几何场景模型为基础,经过附加色彩、纹理及材质,并根据设定的光照条件及场景光照关系,计算生成具有高真实度的视景图像。实现3D动画渲染十分消耗计算机的性能,为了减少3D动画渲染所花费的时间,利用德国maxon公司Cinema 4D软件的Cinema 4D Team Render对3D动画进行分布式渲染测试。结果表明,此种方法确实可以成倍地减少3D动画渲染所花费的时间。

SPEEDING-UP RE-SAMPLED ALGORITHM IN RAY CASTING VOLUME RENDERING OF MEDICAL IMAGES

Ray casting algorithm can obtain a better quality image in volume rendering, however, it exists some problems, such as powerful computing capacity and slow rendering speed. How to improve the re-sampled speed is a key to speed up the ray casting algorithm. An algorithm is introduced to reduce matrix computation by matrix transformation characteristics of re-sampling points in a two coordinate system. The projection of 3-D datasets on image plane is adopted to reduce the number of rays. Utilizing boundary box technique avoids the sampling in empty voxel. By extending the Bresenham algorithm to three dimensions, each re-sampling point is calculated. Experimental results show that a two to three-fold improvement in rendering speed using the optimized algorithm, and the similar image quality to traditional algorithm can be achieved. The optimized algorithm can produce the required quality images, thus reducing the total operations and speeding up the volume rendering.

JSF中自定义分页呈现器(Render)的实现和应用

针对使用JSF构建的系统中经常遇到的大量的分页查询问题,结合JSF自定义呈现器组件技术实现分页查询呈现器,从而达到显示逻辑和业务逻辑的分离、代码重用以及易于维护的目的。

这里的动词render用得对吗?

【问】[437]在《大学英语四级考试王长喜英语预测卷》(第六版)p．107上，参考作文范文Positive and Negative Efforts of Short Message Service(SMS)中，有以下一句：

Very-High Color Rendering Index Hybrid White Organic Light-Emitting Diodes with Double Emitting Nanolayers

A very-high color rendering index white organic light-emitting diode(WOLED) based on a simple structure was successfully fabricated. The optimized device exhibits a maximum total efficiency of 13.1 and 5.4 lm/W at 1,000 cd/m2. A peak color rendering index of 90 and a relatively stable color during a wide range of luminance were obtained. In addition, it was demonstrated that the 4,40,400-tri(9-carbazoyl) triphenylamine host influenced strongly the performance of this WOLED.These results may be beneficial to the design of both material and device architecture for high-performance WOLED.

A Mixed-Depth Visual Rendering Method for Bleeding Simulation

The visual fidelity of bleeding simulation in a surgical simulator is critical since it will affect not only the degree of visual realism,but also the user’s medical judgment and treatment in real-life settings.The conventional marching cubes surface rendering algorithm provides excellent visual effect in rendering gushing blood,however,it is insufficient for blood flow,which is very common in surgical procedures,since in this case the rendered surface and depth textures of blood are rough.In this paper,we propose a new method called the mixed depth rendering for rendering blood flow in surgical simulation.A smooth height field is created to minimize the height difference between neighboring particles on the bleeding surface.The color and transparency of each bleeding area are determined by the number of bleeding particles,which is consistent with the real visual effect.In addition,there is no much extra computational cost.The rendering of blood flow in a variety of surgical scenarios shows that visual feedback is much improved.The proposed mixed depth rendering method is also used in a neurosurgery simulator that we developed.

Cluster parallel rendering based on encoded mesh

Use of compressed mesh in parallel rendering architecture is still an unexplored area, the main challenge of which is to partition and sort the encoded mesh in compression-domain. This paper presents a mesh compression scheme PRMC (Parallel Rendering based Mesh Compression) supplying encoded meshes that can be partitioned and sorted in parallel rendering system even in encoded-domain. First, we segment the mesh into submeshes and clip the submeshes’ boundary into Runs, and then piecewise compress the submeshes and Runs respectively. With the help of several auxiliary index tables, compressed submeshes and Runs can serve as rendering primitives in parallel rendering system. Based on PRMC, we design and implement a parallel rendering architecture. Compared with uncompressed representation, experimental results showed that PRMC meshes applied in cluster parallel rendering system can dramatically reduce the communication requirement.

使用Light Field Rendering实现森林的实时渲染及光照算法

森林的实时渲染及光照是视景系统中的一个难题.基于图像的渲染方法(IBR)由于渲染速度与模型复杂度无关,被广泛应用于场景重建.基于光流场(Light Field Rendering)的IBR技术,提出一种迭代投射算法来进行外形重建,实现了具有实时光影特征的森林效果.实验表明该算法结合了传统迭代、投射算法各自的优点,在质量和效率方面取得了平衡.

Introducing Cinematic Rendering: A Novel Technique for Post-Processing Medical Imaging Data

Since the 1980s, various techniques have been used in the field of medicine for the post-processing of medical imaging data from computed tomography (CT) and magnetic resonance (MR). They include multiplanar reformations (MPR), maximum intensity projection (MIP) and Volume Rendering (VR). This paper presents the prototype of a new means of post-processing radiological examinations such as CT and MR, a technique that, for the first time, provides photorealistic visualizations of the human body. This new procedure was inspired by the quality of images achieved by animation software such as programs used in the entertainment industry, particularly to produce animated films. Thus, the name: Cinematic Rendering. It is already foreseeable that this new method of depiction will quickly be incorporated into the set of instruments employed in socalled virtual anatomy (teaching anatomy through the use of radiological depictions of the human body via X-ray, CT and MR in addition to the use of computer animation programs designed especially for human anatomy). Its potential for medical applications will have to be evaluated by future scientific investigations.

Terrain Rendering LOD Algorithm Based on Improved Restrictive Quadtree Segmentation and Variation Coefficient of Elevation

Aiming to deal with the difficult issues of terrain data model simplification and crack disposal,the paper proposed an improved level of detail(LOD)terrain rendering algorithm,in which a variation coefficient of elevation is introduced to express the undulation of topography.Then the coefficient is used to construct a node evaluation function in the terrain data model simplification step.Furthermore,an edge reduction strategy is combined with the improved restrictive quadtree segmentation to handle the crack problem.The experiment results demonstrated that the proposed method can reduce the amount of rendering triangles and enhance the rendering speed on the premise of ensuring the rendering effect compared with a traditional LOD algorithm.

Virtual Anatomy: The Dissecting Theatre of the Future—Implementation of Cinematic Rendering in a Large 8 K High-Resolution Projection Environment

Modern computer techniques have been in use for several years to generate three-dimensional visualizations of human anatomy. Very good 3-D computer models of the human body are now available and used routinely in anatomy instruction. These techniques are subsumed under the heading “virtual anatomy” to distinguish them from the conventional study of anatomy entailing cadavers and anatomy textbooks. Moreover, other imaging procedures (X-ray, angiography, CT and MR) are also used in virtual anatomy instruction. A recently introduced three-dimensional post-processing technique named Cinematic Rendering now makes it possible to use the output of routine CT and MR examinations as the basis for highly photo-realistic 3-D depictions of human anatomy. We have installed Cinematic Rendering (enabled for stereoscopy) in a high-definition 8K 3-D projection space that accommodates an audience of 150. The space’s projection surface measures 16 × 9 meters;images can be projected on both the front wall and the floor. A game controller can be used to operate Cinematic Rendering software so that it can generate interactive real-time depictions of human anatomy on the basis of CT and MR data sets. This prototype installation was implemented without technical problems;in day-to-day, real-world use over a period of 22 months, there were no impairments of service due to software crashes or other technical problems. We are already employing this installation routinely for educational offerings open to the public, courses for students in the health professions, and (continuing) professional education units for medical interns, residents and specialists—in, so to speak, the dissecting theater of the future.

High color rendering index white organic light-emitting diode using levofloxacin as blue emitter

Levofloxacin （LOFX）, which is well-known as an antibiotic medicament, was shown to be useful as a 452-nm blue emitter for white organic light-emitting diodes （OLEDs）. In this paper, the fabricated white OLED contains a 452-nm blue emitting layer （thickness of 30 nm） with 1 wt% LOFX doped in CBP （4,4＇-bis（carbazol-9-yl）biphenyl） host and a 584-nm orange emitting layer （thickness of 10 nm） with 0.8 wt% DCJTB （4-（dicyanomethylene）-2-tert-butyl-6-（1,1,7,7- tetramethyljulolidin-4-yl-vinyl）-4H-pyran） doped in CBE which are separated by a 20-nm-thick buffer layer of TPBi （2,2＇,2＂-（benzene-1,3,5-triyl）-tri（1-phenyl-lH-benzimidazole）. A high color rendering index （CRI） of 84.5 and CIE chromaticity coordinates of （0.33, 0.32）, which is close to ideal white emission CIE （0.333, 0.333）, are obtained at a bias voltage of 14 V. Taking into account that LOFX is less expensive and the synthesis and purification technologies of LOFX are mature, these results indicate that blue fluorescence emitting LOFX is useful for applications to white OLEDs although the maximum current efficiency and luminance are not high. The present paper is expected to become a milestone to using medical drug materials for OLEDs.

Weakly-Supervised Single-view Dense 3D Point Cloud Reconstruction via Differentiable Renderer

In recent years,addressing ill-posed problems by leveraging prior knowledge contained in databases on learning techniques has gained much attention.In this paper,we focus on complete three-dimensional(3D)point cloud reconstruction based on a single red-green-blue(RGB)image,a task that cannot be approached using classical reconstruction techniques.For this purpose,we used an encoder-decoder framework to encode the RGB information in latent space,and to predict the 3D structure of the considered object from different viewpoints.The individual predictions are combined to yield a common representation that is used in a module combining camera pose estimation and rendering,thereby achieving differentiability with respect to imaging process and the camera pose,and optimization of the two-dimensional prediction error of novel viewpoints.Thus,our method allows end-to-end training and does not require supervision based on additional ground-truth(GT)mask annotations or ground-truth camera pose annotations.Our evaluation of synthetic and real-world data demonstrates the robustness of our approach to appearance changes and self-occlusions,through outperformance of current state-of-the-art methods in terms of accuracy,density,and model completeness.

3D-TVS Render成像联合OmniView技术诊断宫腔粘连的价值探究

目的:探究经阴道三维超声(3D-TVS)三维渲染(Render)成像技术与自由解剖(OmniView)成像技术联合指导宫腔粘连(IUA)诊断的价值。方法:将2019年4月-2022年4月宜春市妇幼保健院收治的临床疑诊为IUA,且均接受阴道超声检查的76例患者所有资料进行回顾性分析,检查结果以宫腔镜为准,与3D-TVS Render、OmniView对比,评价两种技术联合使用对IUA的诊断效能。结果:Render技术漏诊18例(18/63,28.57%),误诊3例(3/13,23.08%),其诊断的敏感度为71.43%,特异度为76.92%,阳性预测值为93.75%,阴性预测值为35.71%,准确率为72.37%。OmniView技术漏诊14例(14/63,22.22%),误诊2例(2/13,15.38%),其诊断的敏感度为77.78%,特异度为84.62%,阳性预测值为96.08%,阴性预测值为44.00%,准确率为78.95%。Render联合OmniView技术漏诊6例(6/63,9.52%),误诊1例(1/13,7.69%),其诊断的敏感度为90.48%,特异度为92.31%,阳性预测值为98.28%,阴性预测值为66.67%,准确率为90.79%。Render、OmniView技术与宫腔镜检查的一致性检验的Kappa值分别为0.332、0.457;联合诊断与宫腔镜检查的一致性检验的Kappa值为0.718,一致性水平好。结论:3D-TVS Render成像联合OmniView成像技术诊断IUA准确率较高,且操作简单、无创,具有临床诊断价值。