Biological Information Technology & Systems - BITS: Fixational Eye Movements in Biological and Artificial Vision Systems

rucci, MicheleBoston university . bits：生物和人工视觉系统中的注视眼运动摘要拟议的研究项目有两个目标：(1)确定小眼球运动对大脑视觉信息表示的具体贡献，(2)将这种机制导出到机器视觉系统。为了实现这些目标，本项目将结合神经种群的计算机建模、机器人实验和人类受试者的心理物理实验，分析自然观看条件下神经活动的统计结构。本研究将首先描述眼动在自然观看条件下对丘脑和皮层细胞空间选择性的影响。然后，将从视觉表征的效率和空间视觉处理的层次结构的心理物理学研究结果两方面研究神经元集合的活动动力学。最后，我们将分析在双目自由观看3D场景时，小眼球运动在恢复距离信息中的可能参与。研究将以双重目的进行，提供关于大脑的新见解，并考虑机器视觉系统的可能应用。

EIA-0130851Rucci, MicheleBoston Univ.BITS: Fixational eye movements in biological and artificial vision systemsSummaryThe proposed research project has two goals: (1) to determine the specific contributions of small eyemovements to the representation of visual information in the brain, and (2) to export such mechanismsto machine vision systems. To accomplish these goals, this project will integrate computer modeling ofneural populations, robotic experiments and psychophysical experiments with human subjects to analyzethe statistical structure of neural activity under natural viewing conditions. The proposed research will first characterize the influences of eye movements on the spatial selectivity of thalamic and cortical cells during natural viewing conditions. Then, the activity dynamics of neuronal ensembles will be studied, both in terms of efficiency of visual representation and in relation to the results of psychophysical studies on the hierarchical structure of spatial visual processing. Finally, we will analyze the possible involvement of small eye movements in the recovery of distance information during binocular free-viewing of a 3D scene. Studies will be conducted with the dual purposes of providing new insights on the brain and considering possible applications to machine vision systems.