为了提高有限码率下基于高效率视频编码(high efficiency video coding,HEVC)监控类视频的编码性能,提出了一种基于感兴趣区域的码率控制改进算法。对于帧层,以编码帧的信息熵和参数调整因子构造一种新的帧层位权重,用于指导帧层目标比...为了提高有限码率下基于高效率视频编码(high efficiency video coding,HEVC)监控类视频的编码性能,提出了一种基于感兴趣区域的码率控制改进算法。对于帧层,以编码帧的信息熵和参数调整因子构造一种新的帧层位权重,用于指导帧层目标比特分配;对于最大编码单元(largest coding unit,LCU)层,以LCU的空间复杂度纹理因子和时间复杂度运动因子为感兴趣因子,与特征量化加权系数一起用于指导LCU层目标比特分配,并对模型参数进行自适应更新。性能测试结果表明,提出的算法在低延迟P帧和低延时B帧配置下,与HEVC码率控制算法相比,率失真性能平均分别提高了14.2%和12.2%,结构相似性平均分别提高了0.00483和0.00371,且具有稳定的码率控制精度和较低的编码复杂度。展开更多
Conflicts of interest over personal data arise from the variety of legal subjects involved and the value of personal data in today’s information society.This article attempts to resolve such conflicts of interest by ...Conflicts of interest over personal data arise from the variety of legal subjects involved and the value of personal data in today’s information society.This article attempts to resolve such conflicts of interest by examining the possibility of allocating data rights which balance competing interests.It suggests that the allocation of personal data rights should follow certain rules to ensure that the interests of relevant data subjects are protected.By examining the reasons for conflicts of interest over personal data,as well as the subjects and substance of such conflicts,the article puts forward an appropriate approach for allocating personal data rights by balancing the interests of different data subjects.For source data subjects,personal data rights are allocated,to protect personal information and data property interests;for data controllers,data property rights are allocated to protect their data property interests when they make data valuable,meanwhile liabilities are allocated to data controller,in case of infringing on other subjects'interests;for data supervisors(mostly the government),allocating the right to protect or make use of data on behalf of public interests and the power of supervising data use industry;for the data users,they are allocated data property rights with the consents of source data subjects and data controllers when make use of data.展开更多
In this paper,interest allocation in the resource industry chain is studied taking resources exploitation in China as an example.First,qualitative analysis is used to conclude stakeholders and their relationship in mi...In this paper,interest allocation in the resource industry chain is studied taking resources exploitation in China as an example.First,qualitative analysis is used to conclude stakeholders and their relationship in mineral resource exploitation.In the following section,using the tool of price constitution and comparison method,the research on interest allocation along the industry chain shows that midstream and downstream companies have advantages.The next section studies interest allocation among resource owners,exploitation companies and local governments.Through contrastive analysis of the financial report of petroleum companies,this paper quantitatively measures the scale of revenue shifting from resource owners,the central and local governments to exploitation companies.This contorted interest allocation is an important factor resulting in exploitation confusion and the large revenue gap.展开更多
文摘Conflicts of interest over personal data arise from the variety of legal subjects involved and the value of personal data in today’s information society.This article attempts to resolve such conflicts of interest by examining the possibility of allocating data rights which balance competing interests.It suggests that the allocation of personal data rights should follow certain rules to ensure that the interests of relevant data subjects are protected.By examining the reasons for conflicts of interest over personal data,as well as the subjects and substance of such conflicts,the article puts forward an appropriate approach for allocating personal data rights by balancing the interests of different data subjects.For source data subjects,personal data rights are allocated,to protect personal information and data property interests;for data controllers,data property rights are allocated to protect their data property interests when they make data valuable,meanwhile liabilities are allocated to data controller,in case of infringing on other subjects'interests;for data supervisors(mostly the government),allocating the right to protect or make use of data on behalf of public interests and the power of supervising data use industry;for the data users,they are allocated data property rights with the consents of source data subjects and data controllers when make use of data.
基金funded by the project of Shandong Social Science Research Project "Shandong Energy Efficiency Difference and Influence Factor Study"[grant number13DJJJ20]
文摘In this paper,interest allocation in the resource industry chain is studied taking resources exploitation in China as an example.First,qualitative analysis is used to conclude stakeholders and their relationship in mineral resource exploitation.In the following section,using the tool of price constitution and comparison method,the research on interest allocation along the industry chain shows that midstream and downstream companies have advantages.The next section studies interest allocation among resource owners,exploitation companies and local governments.Through contrastive analysis of the financial report of petroleum companies,this paper quantitatively measures the scale of revenue shifting from resource owners,the central and local governments to exploitation companies.This contorted interest allocation is an important factor resulting in exploitation confusion and the large revenue gap.
