In this paper, a hardware implementation in reconfigurable logic of a single-pass connected component labelling (CCL) and connected component analysis (CCA) module is presented. The main novelty of the design is the support of a video stream in 2 and 4 pixel per clock format (2 and 4 ppc) and real-time processing of 4K/UHD video stream (3840 x 2160 pixels) at 60 frames per second. We discuss several approaches to the issue and present in detail the selected ones. The proposed module was verified in an exemplary application – skin colour areas segmentation – on the ZCU 102 and ZCU 104 evaluation boards equipped with Xilinx Zynq UltraScale+ MPSoC devices.

在本文中，提出了一种可重构逻辑中的单通道连接组件标记（CCL）和连接组件分析（CCA）模块的硬件实现。该设计的主要新颖之处在于支持每个时钟格式2和4像素（2和4 ppc）的视频流，以及每秒60帧的4K / UHD视频流（3840 x 2160像素）的实时处理。我们讨论了解决该问题的几种方法，并详细介绍了所选择的方法。所建议的模块已在配备Xilinx Zynq UltraScale + MPSoC器件的ZCU 102和ZCU 104评估板上的示例性应用（肤色区域分割）中得到了验证。