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事件视觉传感器发展现状与趋势 被引量:1
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作者 方应红 徐伟 +2 位作者 朴永杰 冯汝鹏 郑亮亮 《液晶与显示》 CAS CSCD 北大核心 2021年第12期1664-1673,共10页
基于事件的视觉传感器是一种新型的仿生型视觉传感器,它更类似于人眼的工作机制使其广受关注。与基于帧的传统相机的工作机制和输出方式不同,基于事件的视觉传感器的像素可以单独检测光照强度对数的变化,并在变化量超过一定阈值时输出... 基于事件的视觉传感器是一种新型的仿生型视觉传感器,它更类似于人眼的工作机制使其广受关注。与基于帧的传统相机的工作机制和输出方式不同,基于事件的视觉传感器的像素可以单独检测光照强度对数的变化,并在变化量超过一定阈值时输出包含位置、时间、极性的事件信息,拥有低延迟、高动态范围、低功耗的优点,其独特的输出方式和工作特性使其特别适应于有高速运动、光照条件变化较大或小能耗的场合。本文介绍了事件相机的发展历程、分类和工作原理、优缺点,以及事件相机在快速运动的跟踪与监测、目标识别、即时定位与地图构建(SLAM)等领域近些年的应用情况。最后总结了事件相机在不同应用领域仍存在的挑战,并展望其未来的发展。事件相机的广泛应用将为目前传统相机仍很棘手的高速运动和高动态范围场合提供新的解决方案,在未来的不断更新和发展下,它将能够在更多复杂的应用场景发挥作用。 展开更多
关键词 事件相机 视觉传感器 基于事件的视觉传感器 原理和应用
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Fan-Browder Type Fixed Point Theorems and Its Applications on Generalized Convex Product Spaces 被引量:2
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作者 piao yong-jie 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2008年第3期349-355,共7页
Fan-Browder type fixed point theorems are obtained for non-selfmaps on non-compact generalized convex product spaces and new existence problems of(partially) maximai element and equilibrium point are discussed as ap... Fan-Browder type fixed point theorems are obtained for non-selfmaps on non-compact generalized convex product spaces and new existence problems of(partially) maximai element and equilibrium point are discussed as applications of above results. 展开更多
关键词 generalized convex space F-convex maximal element partially maximal element equilibrium point
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B-Implicit Contractive Conditions and Unique(Common) Fixed Points on Complex Valued Metric Spaces 被引量:2
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作者 piao yong-jie 《Chinese Quarterly Journal of Mathematics》 2018年第2期212-220,共9页
A class B of complex functions is introduced and several existence theorems of unique(common) fixed points for mappings satisfying a B-implicit contraction are presented.Moreover, the existence results of common fixed... A class B of complex functions is introduced and several existence theorems of unique(common) fixed points for mappings satisfying a B-implicit contraction are presented.Moreover, the existence results of common fixed points for two mappings on a nonempty set with two complex valued metrics are provided. Our outcomes generalize and improve some known results, especially, for instance, Banach contraction principle, Chatterjea-type fixed point theorem and the corresponding fixed point theorems. 展开更多
关键词 Complex valued metric space (Common) Fixed point B-implicit contraction
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An Improvement of Existence Theorems of Additive Selection Maps for Sub-additive Set-valued Maps
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作者 piao yong-jie 《Chinese Quarterly Journal of Mathematics》 2017年第2期187-193,共7页
In this paper, we will construct a new class of subadditive set-valued maps and use Cantor theorem to prove that the set-valued map has an unique additive selection map when the set-valued map satisfies some certain c... In this paper, we will construct a new class of subadditive set-valued maps and use Cantor theorem to prove that the set-valued map has an unique additive selection map when the set-valued map satisfies some certain conditions, and then compare the obtained result with the well-known results. 展开更多
关键词 additive selection map sub-additive CONE
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