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基于仿视觉细胞模型的立体图像质量评价方法 被引量:9
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作者 薛小波 郁梅 何美伶 《激光与光电子学进展》 CSCD 北大核心 2016年第4期80-87,共8页
在观看立体图像时,人类视觉系统(HVS)以人眼视网膜细胞为媒介接收、传输和理解双目信息,基于此提出了一种仿视觉细胞模型的立体图像质量评价(SIQA)方法。以视网膜细胞特性为基础,模仿HVS对简单细胞和复杂细胞进行建模;双目信息经简单-... 在观看立体图像时,人类视觉系统(HVS)以人眼视网膜细胞为媒介接收、传输和理解双目信息,基于此提出了一种仿视觉细胞模型的立体图像质量评价(SIQA)方法。以视网膜细胞特性为基础,模仿HVS对简单细胞和复杂细胞进行建模;双目信息经简单-复杂细胞模型处理得到双目融合视点图(BFVM)和双目细胞差异图(BCDM),采用多尺度结构相似度(MSSIM)算法分别对原始、失真立体图像的BFVM和BCDM进行双目融合评价(BFQA)和双目立体感评价(BSPA);对BFQA和BSPA的评价值进行加权融合得到最终评价值。实验结果表明,该方法的Pearson线性相关系数在0.94以上,Spearman秩相关系数在0.93以上,该模型符合人眼视觉特性,能够较好地预测立体图像质量。 展开更多
关键词 图像处理 立体图像质量评价 人类视觉系统 视觉细胞模型 双目融合 简单-复杂细胞
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Proposal for a Reasonable Model of the Visual System: Principles of Clinical Neurosociology 被引量:1
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作者 De La Puentea 《Sociology Study》 2014年第4期360-383,共24页
This paper maintains that when photons enter the pupil and reach the Inner Limiting Membrane (ILM), they are reflected onto a point or centroid of the vitreous body, which could be the lens, to be transmitted by the... This paper maintains that when photons enter the pupil and reach the Inner Limiting Membrane (ILM), they are reflected onto a point or centroid of the vitreous body, which could be the lens, to be transmitted by the Muiller cells to the Retinal Pigment Epithelium (RPE) hexagonal cells, where an almost complete image is formed in each of them, overlapping with the adjacent images, to be carried subsequently by each of the ganglion cell axons to a place where the single image we are aware of is formed. This process calls for a high degree of control and coordination, which must be effected by the horizontal, amacrine, and interplexiform cells, gap junctions and the feedback provided from the V1 area to the Lateral Geniculate Nucleus (LGN). But, as the ILM covers the optic disc but not the fovea, the latter must produce the blind spot and the rays reflected radially from the centroid must have the same centre as the Muller cells in order to be able to channel them to the RPE cells. 展开更多
关键词 Visual system principles of clinical neurosociology IMAGE PHOTON
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