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An Efficient Demosaiced Image Enhancement Method for a Low Cost Single-Chip CMOS Image Sensor

机译:低成本单芯片CMOS图像传感器的高效去马赛克图像增强方法

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An efficient demosaiced image enhancement method for a low cost single-chip CMOS image sensor (CIS) with an on-chip image signal processor (ISP) is proposed. In a single-chip CIS for handheld devices that requires low power consumption, the ISP implemented must be as small as possible while maintaining high performance. Demosaicing and image enhancement are the largest block in the ISP because they need line memories. In this paper, we propose a new method to minimize the number of line memories. In the proposed method, buffered data for demosaicing were used to make approximated luminance data for image enhancement. This enables line memory sharing between demosaicing and image enhancement. The experimental results showed that the proposed method enhanced the image quality. Thus, both high quality and a small area can be achieved by utilizing the proposed method.
机译:提出了一种具有片上图像信号处理器(ISP)的低成本单芯片CMOS图像传感器(CIS)的高效去马赛克图像增强方法。在要求低功耗的手持设备的单芯片CIS中,实现的ISP必须尽可能小,同时还要保持高性能。去马赛克和图像增强是ISP中最大的块,因为它们需要行存储器。在本文中,我们提出了一种减少行存储器数量的新方法。在所提出的方法中,使用用于去马赛克的缓冲数据来制作用于图像增强的近似亮度数据。这样可以在去马赛克和图像增强之间共享行存储器。实验结果表明,该方法提高了图像质量。因此,通过利用所提出的方法,可以实现高质量和小面积。

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