1. The main task of this paper is based on the processing of image, extracting contour of ripped-up papers, and using shape matching algorithm to stitching of these ripped-up papers. 本文的主要任务是基于图像处理方法，提取碎片轮廓特征，利用形状匹配的算法完成碎纸片的拼接。
2. He had ripped up the carpet, leaving only the bare boards. 他用力扯去了地毯，只剩下裸露的地板。
3. He ripped up the letter and threw it in the fire. 他把信撕碎，扔到炉子里。
4. You get a redistribution and mixing of soil as deep roots are ripped up from the ground. 当深根被从地上拔起时，你会得到土壤的重新分配和混合。
5. He ripped the letters up and threw them in the wastepaper basket. 他把这些信撕碎，扔进字纸篓里。
