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本文提出了一款将132dB动态范围QVGA像素阵列与32位DSP/MCU处理器集成在同一芯片上的SoC，用于视觉应用。该设计解决了高动态范围成像中固定模式噪声和非均匀传输函数的问题，实现了单芯片的图像采集、分析和决策。
optical front-end, and a data representation that is as independent as possible from the illumination level. Furthermore, combining an optical front-end and a processor on the same chip enables a single-chip vision system to perform image acquisition, analysis and decision-making. Approaches that enable high dynamic range are logarithmic imagers [1] and lin-log imagers [2], but they suffer from poor fixed-pattern noise (FPN) performance [1,2] and non-uniform transfer functions [2] due to the combination of linear and logarithmic domains. While multiple-exposure imagers [3] solve the FPN problem, they require post-processing to combine several frame captures. Finally the dynamic range of time-domain logarithmic imagers with fixed reference voltages [4] is limited by the maximum allowable exposure time.
Pierre-François Rüedi, Pascal Heim, Stève Gyger, François Kaess,
Claude Arm, Ricardo Caseiro, Jean-Luc Nagel, Silvio Todeschini CSEM, Neuchâtel, Switzerland Key elements for machine vision are the intra-scene dynamic range of the