Face animation based on multiple sources and perspective alignment

Background Face image animation generates a synthetic human face video that harmoniously integrates the identity derived from the source image and facial motion obtained from the driving video.This technology could be beneficial in multiple medical fields,such as diagnosis and privacy protection.Previous studies on face animation often relied on a single source image to generate an output video.With a significant pose difference between the source image and the driving frame,the quality of the generated video is likely to be suboptimal because the source image may not provide sufficient features for the warped feature map.Methods In this study,we propose a novel face-animation scheme based on multiple sources and perspective alignment to address these issues.We first introduce a multiple-source sampling and selection module to screen the optimal source image set from the provided driving video.We then propose an inter-frame interpolation and alignment module to further eliminate the misalignment between the selected source image and the driving frame.Conclusions The proposed method exhibits superior performance in terms of objective metrics and visual quality in large-angle animation scenes compared to other state-of-the-art face animation methods.It indicates the effectiveness of the proposed method in addressing the distortion issues in large-angle animation.

Audio2AB:Audio-driven collaborative generation of virtual character animation

Background Considerable research has been conducted in the areas of audio-driven virtual character gestures and facial animation with some degree of success.However,few methods exist for generating full-body animations,and the portability of virtual character gestures and facial animations has not received sufficient attention.Methods Therefore,we propose a deep-learning-based audio-to-animation-and-blendshape(Audio2AB)network that generates gesture animations and ARK it's 52 facial expression parameter blendshape weights based on audio,audio-corresponding text,emotion labels,and semantic relevance labels to generate parametric data for full-body animations.This parameterization method can be used to drive full-body animations of virtual characters and improve their portability.In the experiment,we first downsampled the gesture and facial data to achieve the same temporal resolution for the input,output,and facial data.The Audio2AB network then encoded the audio,audio-corresponding text,emotion labels,and semantic relevance labels,and then fused the text,emotion labels,and semantic relevance labels into the audio to obtain better audio features.Finally,we established links between the body,gestures,and facial decoders and generated the corresponding animation sequences through our proposed GAN-GF loss function.Results By using audio,audio-corresponding text,and emotional and semantic relevance labels as input,the trained Audio2AB network could generate gesture animation data containing blendshape weights.Therefore,different 3D virtual character animations could be created through parameterization.Conclusions The experimental results showed that the proposed method could generate significant gestures and facial animations.

Development and Evaluation of 3D Delivery Animation Software Designed to Improve the Mother’s and Spouse’s Satisfaction with Delivery

Purpose: To clarify the effectiveness of 3-D delivery animation software for the mother’s and husband’s satisfaction with delivery. Subjects and Method: We independently developed a software application used to display the pelvic region and explain the labor process. The study involved a collaboration with hospital staff who recruited 18 primiparous and 18 multiparous mothers who were hospitalized for delivery at Facility A. The midwife explained the process of delivery using the “Delivery Animation Software”. A self-administered, anonymous questionnaire was distributed and analyzed separately for primiparous and multiparous mothers and their husbands. Results: 1) For both primiparous and multiparous couples, both mothers and their husbands gained a significantly higher level of understanding after delivery than during pregnancy. 2) The Self-Evaluation Scale for Experience of Delivery results were as follows: “I did my best for the baby even if it was painful” was selected more often for “birth coping skills”;“reliable medical staff” was selected more often for “physiological birth process”;“the birth progressed as I expected” was selected frequently by primiparous mothers;and “the birth progressed smoothly” was selected often by multiparous mothers. 3) In terms of husbands’ satisfaction with the delivery, “I was satisfied with the delivery”, “I was given an easy-to-understand explanation”, and “They explained the process to me” was selected of primiparous and multiparous fathers. 4) All primiparous and multiparous mothers positively evaluated whether the delivery animation was helpful in understanding the process of delivery. Conclusion: The delivery animation was effective in improving the understanding and satisfaction of both the mothers and their husbands.

Ultra-Lightweight Face Animation Method for Ultra-Low Bitrate Video Conferencing

Video conferencing systems face the dilemma between smooth streaming and decent visual quality because traditional video compression algorithms fail to produce bitstreams low enough for bandwidth-constrained networks.An ultra-lightweight face-animation-based method that enables better video conferencing experience is proposed in this paper.The proposed method compresses high-quality upperbody videos with ultra-low bitrates and runs efficiently on mobile devices without high-end graphics processing units(GPU).Moreover,a visual quality evaluation algorithm is used to avoid image degradation caused by extreme face poses and/or expressions,and a full resolution image composition algorithm to reduce unnaturalness,which guarantees the user experience.Experiments show that the proposed method is efficient and can generate high-quality videos at ultra-low bitrates.

The Developmental Difficulties and Prospects of Chinese-style Animation:Taking Yao-Chinese Folktales as an Example

As one of the important means to spread Chinese traditional culture,Chinese-style animation has been on the rise in recent years.Many excellent works have emerged,among which the Chinese animated short film series Yao-Chinese Folktales is one of the good representatives.It aroused a strong reaction from the audience as soon as it was released on the Internet,and gave the audience a shock to their mind and vision,which has brought some thoughts to the development of Chinese-style animation.Following a linear logic chain of past-present-future Chinese-style animation’s development,this paper takes Yao-Chinese Folktales as an example and analyzes the developmental difficulties and prospects of Chinese-style animation.At the end of the paper,some suggestions about the development path of Chinese-style animation’s future are given from the aspects of creation and dissemination,for the aim of promoting the Chinese-style animation’s development and spreading the Chinese traditional culture.

Sustainable Development of Internet Literature in the Era of Games and Animation:Challenges and Opportunities

The rapid development of Internet literature not only made itself the source of information about animation and the gaming industry,but also boosted the creation of super writers who are now establishing themselves as IP(intellectual property)producers and providers.Rather than creating literary classics,these writers prefer producing commercial novels targeted at a certain group of readers.Meanwhile,the structure of their works tends to cater to the preferences of online games and animation,with the narrative and characters in the novel adjusting accordingly.These changes have enhanced the influence of Internet literature.But an excessive emphasis on IP gradually converts the novels into scripts for games with highly stereotyped content and structure.Fastpaced writing also renders their works with a lack of polish,including such serious problems as mismatched plots and repetitive narratives.Therefore,Internet literature is in urgent need of positive guidance,as its development will be stalled due to the excessive emphasis on IP.

Research on the Application of Virtual Simulation and 3D Animation Technology in the Teaching of Road and Bridge Majors in Higher Vocational Colleges

The informatization of higher vocational education is the future development trend,and it is also encouraged and promoted by the Ministry of Education.This article focuses on the road and bridge major,combined with the author’s experience in introducing virtual simulation and three-dimensional(3D)animation technology into relevant course teaching in recent years,discusses the application of virtual simulation and 3D animation technology in higher vocational education and promotes classroom revolution,to obtain better teaching effect.

miR-421靶向调控Menin/Caspase-3影响抑郁症的机制

目的探讨miR-421影响抑郁症发生发展的作用机制。方法采取单次腹腔注射脂多糖(LPS)方法建立抑郁大鼠模型,采用糖水偏好度测试和旷场实验进行抑郁行为检测。通过miRNA微阵列芯片和RT-PCR分析miR-421在抑郁大鼠海马组织中的表达量,运用TargetScan数据库和mi RDB数据库进行预测miR-421的靶基因,采用双荧光素酶报告基因实验观察其与靶基因的结合情况,观察过表达和抑制miR-421对靶基因的影响,随后过表达和抑制靶基因,观察其对下游因子的影响,最终探究miR-421影响抑郁症的相关机制。结果miRNA微阵列芯片和RT-PCR检测表明miR-421在抑郁大鼠海马组织中呈高表达(P<0.001),抑制miR-421的表达可显著恢复抑郁大鼠的体重和运动能力(P<0.001)。TargetScan数据库预测得到Menin与miR-421存在结合靶点,双荧光素酶报告基因实验表明Menin与miR-421具有相互作用;当miR-421过表达时,Menin表达量会下调(P<0.001),相反,当抑制miR-421表达时,Menin表达量会上调(P<0.001)。qPCR检测提示,Menin下游因子Caspase-3、NF-κB在抑郁大鼠模型海马组织中的表达显著提高(P<0.001),IL-1β在抑郁大鼠模型海马组织中的表达明显提高(P<0.01),当抑制Menin表达时,Caspase-3、NF-κB、IL-1β表达量会升高(P<0.001),当过表达Menin时,Caspase-3、NF-κB、IL-1β表达量则降低(P<0.001)。结论抑制miR-421表达可升高Menin表达,降低Caspase-3含量,减少神经炎症反应,从而改善抑郁症状。

抗氧化剂在动物生产中的应用

氧化应激是现代畜牧业面临的重要挑战之一。随着世界畜牧业的技术不断提升和需求不断增长,如何保障家畜健康和生产效益已成为研究的热点之一。抗氧化剂作为一种能够清除自由基、延缓氧化应激的重要物质,在畜牧业生产中应用广泛。该文从抗氧化剂的分类入手,综述天然抗氧化剂和合成抗氧化剂在生物体内的作用。在此基础上,进一步阐述抗氧化剂在饲料生产中的应用,及其对动物生产的影响。结合抗氧化剂在动物生产中的应用案例,分析抗氧化剂在当前动物生产中的存在问题及其具有的潜在发展前景。

新媒体背景下少数民族动画符码赋能铸牢中华民族共同体意识

少数民族动画是在艺术想象下创作实践而成的文化精神承载物,是中华民族文化符号的具体呈现,少数民族动画对中华民族共同体意识“日常生活层面”的传播有着重要作用。新媒体信息传播方式对文化符码的传播和输出产生了文化多元化、对象多样化、传播复杂化等影响。少数民族动画文化符码作为铸牢中华民族共同体意识的重要媒介和载体,从1949年-2019年经历了族群认同、自我认同、国家认同的发展历程,在新媒体背景下少数民族动画呈现出与大众文化消费市场距离较远、“碎片化”信息传播需要整合、民族文化差异性与共享性需要平衡、动画观众个性化需求需要协调等特点。研究认为,可以从审美层面契合少数民族动画符码的当代向度,使内容与形式符合现代人的审美需求;从观念与价值层面引导少数民族动画符码的价值构建,以文艺形式承载时代精神,价值引导符合时代发展的需求;从情感与记忆层面满足少数民族动画的与时俱进,传递共同民族心理与共同价值观念,拓展少数民族动画媒体宣传力度,增强少数民族动画赋能铸牢中华民族共同体意识的能力。

乡村振兴背景下畜牧业发展存在的问题与对策

畜牧业是农业的重要组成部分,是国民生活水平、健康幸福的重要体现。乡村振兴战略下解决“三农”问题,畜牧业的发展是重中之重,为实现“工业繁荣、生态宜居、乡风文明、治理有效、生活富裕”的总要求,该文对现阶段畜牧业发展存在的问题和对策进行阐述分析。

巨大芽孢杆菌在动物养殖中的应用研究进展

巨大芽孢杆菌(Bacillus megaterium)是一种好氧革兰氏阳性菌,具有繁殖快、生命力强和对人畜无害等优点,在畜牧养殖、解磷固氮、生物防治、水体净化等领域有着广泛应用。本文重点综述了巨大芽孢杆菌的特性,在抑制病原菌、提高机体免疫功能、产酶和维护肠道菌群平衡等方面的作用机制以及在畜禽和水产养殖中的应用,为其科学高效应用于动物养殖提供参考。

超高效液相色谱-串联质谱法快速测定动物组织中地塞米松与倍他米松药物残留

在承担糖皮质激素风险监测任务时,发现2个现行有效的关于检测动物组织中糖皮质激素的国家标准(农业部1031号公告-2—2008《动物源性食品中糖皮质激素类药物多残留检测液相色谱-串联质谱法》和GB/T 21981—2008《动物源食品中激素多残留检测方法液相色谱-质谱/质谱法》)中的样品前处理均采用了固相萃取方法,从而导致了检测过程中过柱净化烦琐、氮吹浓缩时间长、检测成本高、生态环境不友好等诸多弊端。在经过大量实验研究及经实际工作应用检验的基础上,研究简化了动物组织中地塞米松和倍他米松残留检测中样品前处理固相萃取过柱和氮吹过程,建立了快速、准确、灵敏的动物组织(牛肝、牛肉、猪肝与猪肉)中残留的地塞米松和倍他米松的超高效液相色谱-串联质谱的同时检测方法。样品在盐析条件下经乙腈提取,正己烷脱脂,采用电喷雾多反应监测、负离子模式测定,对动物组织中地塞米松和倍他米松进行定性和定量。地塞米松和倍他米松的检出限可达0.5μg/kg,定量限可达1.0μg/kg。在地塞米松和倍他米松的质量浓度为0.1~50.0μg/L,峰强度与质量浓度的线性关系良好(R 2>0.99)。在地塞米松和倍他米松的1.0、2.0、5.0μg/kg添加浓度下,方法的平均回收率在83.3%~98.2%。希望该研究可为实验室大批量检测此类药物在动物组织中的残留提供一定的借鉴。

“课程思政”融入动物解剖学实验课创新型教学模式探索与实践

动物解剖学作为动物医学专业学生入学后的第一门专业基础课,是后续动物生理学、动物传染病学、内科学、外科学等专业课的先导,属于形态学课程。为了提高动物解剖学教学质量和学生的道德素质,适应高校教师教书育人和课程思政的时代需求,本文根据实验课教学内容充分挖掘思政素材,将立德树人的教育理念纳入动物解剖学教学过程,实现教学内容与课程思政的有机融合。

基于科研范式变革的实验动物资源创新发展

实验动物是支撑生命科学和生物医药等领域科技创新的重要基础科研条件之一。随着科研范式的变革,准确把握科学前沿和国家重大需求,进一步凝练实验动物资源创制与发展中的难点和疑点,对加快推动实验动物新品种/新品系开发和动物模型创制与发展具有重要意义。本文梳理了我国实验动物资源建设和应用情况,就应对新形势下的科研范式变革中存在的主要问题进行了深入探讨,展望了我国实验动物资源发展新动向,以期为实验动物新资源研究开发提供新视角。

动物科学与动物医学虚拟仿真实验教学平台的建设与实践

实验教学是动物科学与动物医学专业人才培养的重要组成部分。为了突破生物安全、动物福利、教学成本、实验条件等对动物类实验教学的制约,山东农业大学动物科学与动物医学国家级实验教学示范中心根据教学需求构建虚拟仿真实验教学平台,推动实验教学模式的创新与改革,激发了学生学习兴趣,提升了实验教学水平,实现了教学资源开放共享,提高了人才培养质量。

寄生虫抗药性及其对水产动物寄生虫病药物防治的启示

抗药性是病原体在药物作用下发生生理变化和遗传变异而获得的能经受住药物毒性的一种能力。随着水产养殖集约化程度提高和药物长期大量使用,寄生虫抗药性越来越普遍和严重,不仅影响寄生虫病的防治效果,还带来环境污染和食品安全问题。文章通过对陆生动物抗寄生虫药物、寄生虫抗药性机制、抗药性主要测定方法、抗药性控制策略及水产动物寄生虫抗药性的研究现状进行综述,为我国水产养殖中寄生虫抗药性研究提供思路,同时为减缓寄生虫抗药性提供科学的防控策略。

藻类调控动物机体健康研究进展

藻类作为古老的微生物之一,在自然界广泛存在。其富含多糖、蛋白质、脂肪酸等生物活性成分,具有抗炎、抗氧化、免疫调节等多种生物功能。因此,藻类添加在饲料中调控动物健康已成为热门的研究领域。本综述旨在总结藻类调控动物健康的研究进展,深入探讨其生物活性成分及作用机制,并分析其在饲料领域的应用前景,以期为相关领域的研究者提供借鉴和参考,推动藻类饲料的应用和发展,为动物养殖业提供更高效、低成本的健康调控策略。

面向农业强国:畜牧产业绿色高质量发展的基础、价值与路径

畜牧产业作为经济可持续发展的主要组成部分,如何在农业强国战略指引下实现绿色高质量发展成为重要议题。文章从支持政策持续加码、市场需求日益旺盛、畜牧产业竞争力不断增强三方面阐述我国畜牧产业绿色高质量发展的现实基础。面向农业强国,畜牧产业绿色高质量发展有助于驱动农业农村现代化、助力畜牧业经济高速增长与打造畜牧产业现代化生态。因此,文章提出增强畜牧产业政策扶持力度、提高畜牧产业信息化水平、建立畜禽商品冷链加工配送系统的创新路径,为实现农业强国战略目标提供重要支持。

一起人炭疽事件引发的畜间流行病学调查

2023年7月26日,河南省某县卫健委通报马某等3人被确诊为皮肤炭疽,3人系亲属关系,从事牛羊养殖、屠宰、加工和销售工作。为调查疫病传染源、传播途径,降低畜间疫情发生和公共卫生风险,重点对病例关联的某养殖专业合作社马某肉牛养殖场、马某牛羊屠宰点和老马本地牛羊肉店开展了紧急流行病学调查。调查发现:病原随省外引进肉牛传入的可能性较小,马某等人通过宰杀带菌肉牛感染,并通过人员或生产资料将病原传入牛场的可能性较大,当前及近一段时间内当地发生人间和畜间炭疽的风险较低,但病原对当地牛羊养殖和公共卫生的潜在风险不容忽视。建议当地加大动物防疫相关政策宣传力度,普及炭疽等人兽共患病防控知识,切实做好炭疽等人兽共患病防控工作,防范疫情再次发生。