Amols H I
Department of Radiation Oncology, Columbia University, New York, New York 10032.
Med Phys. 1989 Jan-Feb;16(1):140-1. doi: 10.1118/1.596385.
Video frame grabbers are powerful devices which perform rapid conversion of video images into digital format for subsequent computer processing. Recently, the cost of these devices has become competitive with sonic and magnetic digitizing tablets commonly used in radiation therapy treatment planning. Frame grabbers, plus all associated hardware/software can be interfaced to a variety of personal or microcomputers, and allow input of irregular treatment field and patient contour data into standard treatment planning systems. Such a system is described, which offers advantages of speed, accuracy, and resolution as compared to more conventional digitizing systems.
视频帧采集卡是功能强大的设备，可将视频图像快速转换为数字格式以便后续进行计算机处理。最近，这些设备的成本已变得与放射治疗治疗计划中常用的声波和磁性数字化平板具有竞争力。帧采集卡以及所有相关的硬件/软件可以与各种个人计算机或微型计算机接口，并允许将不规则的治疗野和患者轮廓数据输入到标准治疗计划系统中。本文描述了这样一种系统，与更传统的数字化系统相比，它具有速度、准确性和分辨率方面的优势。
