近年来,高速DSP(Digital Signal Processor)发展很快,尤其是VLIW(超长指令字)结构成为高端DSP的主流技术,除了传统的通用DSP产品采用VLIW技术外,针对多媒体应用的专门化通用可编程DSP也有了长足进展,例如Philips的Tri-Media系列和Equato...近年来,高速DSP(Digital Signal Processor)发展很快,尤其是VLIW(超长指令字)结构成为高端DSP的主流技术,除了传统的通用DSP产品采用VLIW技术外,针对多媒体应用的专门化通用可编程DSP也有了长足进展,例如Philips的Tri-Media系列和Equator的MAP_CA系列等,在我国都已经开始应用于多媒体系统设计中,本文以MAP_CA为例,分析一下这类多媒体处理器的特点和应用.展开更多
While quality assessment is essential for testing, optimizing, benchmarking, monitoring, and inspecting related systems and services, it also plays an essential role in the design of virtually all visual signal proces...While quality assessment is essential for testing, optimizing, benchmarking, monitoring, and inspecting related systems and services, it also plays an essential role in the design of virtually all visual signal processing and communication algorithms, as well as various related decision-making processes. In this paper, we first provide an overview of recently derived quality assessment approaches for traditional visual signals (i.e., 2D images/videos), with highlights for new trends (such as machine learning approaches). On the other hand, with the ongoing development of devices and multimedia services, newly emerged visual signals (e.g., mobile/3D videos) are becoming more and more popular. This work focuses on recent progresses of quality metrics, which have been reviewed for the newly emerged forms of visual signals, which include scalable and mobile videos, High Dynamic Range (HDR) images, image segmentation results, 3D images/videos, and retargeted images.展开更多
文摘近年来,高速DSP(Digital Signal Processor)发展很快,尤其是VLIW(超长指令字)结构成为高端DSP的主流技术,除了传统的通用DSP产品采用VLIW技术外,针对多媒体应用的专门化通用可编程DSP也有了长足进展,例如Philips的Tri-Media系列和Equator的MAP_CA系列等,在我国都已经开始应用于多媒体系统设计中,本文以MAP_CA为例,分析一下这类多媒体处理器的特点和应用.
基金partially supported by the Research Grants Council of the Hong Kong SAR, China (Project CUHK 415712)the Ministry of Education Academic Research Fund (AcRF) Tier 2 in Singapore under Grant No. T208B1218
文摘While quality assessment is essential for testing, optimizing, benchmarking, monitoring, and inspecting related systems and services, it also plays an essential role in the design of virtually all visual signal processing and communication algorithms, as well as various related decision-making processes. In this paper, we first provide an overview of recently derived quality assessment approaches for traditional visual signals (i.e., 2D images/videos), with highlights for new trends (such as machine learning approaches). On the other hand, with the ongoing development of devices and multimedia services, newly emerged visual signals (e.g., mobile/3D videos) are becoming more and more popular. This work focuses on recent progresses of quality metrics, which have been reviewed for the newly emerged forms of visual signals, which include scalable and mobile videos, High Dynamic Range (HDR) images, image segmentation results, 3D images/videos, and retargeted images.
