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EFFICIENT PROCESSING IN THE RETINA

机译:视网膜中的高效处理

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摘要

Recent work suggests that visual information can be encoded by the activities of small proportions of many available units, This can be seen as energetically efficient as few outputs are strongly active at any time. An image coding model is presented to examine the effect of an efficient use of synapses rather than outputs. The model has two main parameters, the input:output ratio r, and a total weight energy budget k. It was found that for a given number of output units there is a weight budget that leads to optimal efficiency, balancing network performance and energy expenditure. More outputs can achieve higher efficiency, but this requires a higher budget. The resulting filters have center surround organization with strong quantitative similarities to retinal ganglion cell receptive fields. This work contributes to a common energy efficiency interpretation of sensory and cortical level processing in the visual system.
机译:最近的工作表明,视觉信息可以通过许多可用单元的一小部分的活动来编码。这可以被视为具有能量效率,因为在任何时候都很少有活动。提出了一种图像编码模型来检查有效使用突触而不是输出的效果。该模型有两个主要参数,输入:输出比r和总重量能量预算k。已经发现,对于给定数量的输出单元,有一个权重预算可导致最佳效率,平衡网络性能和能源消耗。更多的输出可以实现更高的效率,但这需要更高的预算。所得的滤光片具有中心周围的组织,与视网膜神经节细胞感受野的定量相似性强。这项工作有助于视觉系统中感官和皮质水平处理的通用能效解释。

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