A compact wideband millimeter wave detection element for the 35 GHz band has been developed mainly for passive imaging technologies. Using this element, fruit, timber, and foods in cardboard boxes have been observed nondestructively. The thermal radiation emitted from fruit changes as it is ripening, timber with knots and/or damages by white ants, and food temperature in cardboard box can be detected through incoherent passive imaging.Index Terms -Biomedical imaging, Imaging, Millimeter wave antenna arrays, Millimeter wave antennas, Millimeter wave imaging.

In this paper, we propose a road surface segmentation technique which is accurate and suitable for hardware implementation. The road surface is segmented by detecting the boundary between road and obstacle, based on the disparity histogram which we define as VLDH (Vertically Local Disparity Histogram). On each pixel of disparity image, VLDH is computed from the disparities of vertically local neighbourhood pixels. The major advantage is the feasibility of the pipeline processing on image processing hardware for stereo camera. The direct advantage on processing time is confirmed based on implementation into FPGA. Experimental result also shows that the accuracy of the proposed method is better than the conventional method.

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