FPGA-based real-time panoramic image mosaic method
A panorama image and image technology, applied in image enhancement, image data processing, instruments, etc., can solve the problems such as the need to improve the accuracy and the operation speed limit, and achieve the effect of fast operation speed, guaranteed accuracy, and improved system speed.
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[0021] Such as figure 1 As shown, the present invention realizes to obtain real-time video panorama mosaic image by rotating 360 ° of single camera, specifically comprises the following steps:
[0022] Step 1: Collect video images in BT656 format through a single camera rotation, and convert the video to grayscale.
[0023] Each line of data in BT656 format includes horizontal control signals and YCbCr video data signals, video data is transmitted at a rate of 27Mbit / s, and the order is Cb, Y, Cr, Y, Cb, Y, Cr... Among them, Cb, Y, Cr Refers to the luminance and color-difference signal samples at the same address, and the following Y corresponds to the next luminance sample. Therefore, it is grayscaled, that is, the brightness information Y of each pixel is extracted.
[0024] Step 2: After obtaining the grayscale video data stream, first use the Harris corner detection method to extract the feature points of the image. The Harris corner detection algorithm only involves the...
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