基于直線的全維視覺系統(tǒng)標定方法研究

利用空間直線的中心折反射投影的特性對全維視覺系統(tǒng)的標定方法進行了研究。應用光線追跡法提取空間直線折反射圖像上的點，并提出一種基于最小二乘理論的二次曲線擬合方法，將其應用到直線折反射圖像的擬合中，最終求出系統(tǒng)成像參數(shù)，完成對全維視覺系統(tǒng)的標定。對真實全維視覺系統(tǒng)的標定實驗驗證了該方法的實用性。
關鍵詞：全維視覺系統(tǒng)；標定；二次曲線；擬合；光線追跡法

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Abstract: This paper introduces the study on omni-directional vision system calibration method using central catadioptric projection property of space line. The catadioptric image point of space line was captured applied ray-tracing algorithm. A conic fitting algorithm based on least-square theory was raised which be used in catadioptric image fitting of line. System imaging parameter was determined by cholsky decomposition and omni-directional vision system was calibration. The calibration experiment on real omni-directional vision system verifies its effect.
Keywords: omni-directional vision system; calibration; conics; fit; ray-tracing algorithm