...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Surgical Endoscopy >A simple device for measuring the resolution of videoscopic cameras and laparoscopes in the operating room.
【24h】

A simple device for measuring the resolution of videoscopic cameras and laparoscopes in the operating room.

机译：一种用于测量手术室中的摄像机和腹腔镜分辨率的简单设备。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

BACKGROUND: There is a need for a device that can be used to objectively evaluate the image quality provided by laparoscopic camera units in the operating room. METHODS: The device that we developed consists of a regular 10-mm or 5-mm laparoscopic port with a rectangular test unit built at the end. A standard test pattern slide with resolution bars is used for measurements. Using this assembly, a single-chip laparoscopic camera was compared with a three-chip laparoscopic camera at different wiring formats and camera settings by measuring the resolution on the monitor screen. RESULTS: Vertical resolution was found to be constant at 550 lines, regardless of the type of camera and wiring used. Of the three wiring formats, composite wiring provided the poorest image with both cameras. When enhancement was off, the horizontal resolution obtained with Y/C or RGB wiring was the same for the one-chip camera at 640 lines of horizontal resolution, whereas RGB cabling provided the best image for the three-chip camera at 800 lines. CONCLUSION: Using basic broadcasting principles, we have developed a simple device that is useful for the comparison of different camera, cabling, and laparoscope configurations in the operating room. This information can be used as objective criteria to judge the image quality in laparoscopic video- systems.
机译：背景技术：需要一种可用于客观地评估手术室中腹腔镜摄像机单元提供的图像质量的设备。方法：我们开发的设备包括一个普通的10毫米或5毫米腹腔镜端口，并在其末端装有一个矩形测试单元。使用带有分辨率条的标准测试图案幻灯片进行测量。使用该组件，通过在监视器屏幕上测量分辨率，将单芯片腹腔镜摄像机与三芯片腹腔镜摄像机在不同的接线格式和摄像机设置下进行了比较。结果：无论使用哪种摄像机和接线方式，垂直分辨率均稳定在550行。在这三种布线格式中，复合布线在两台摄像机中都提供了最差的图像。禁用增强功能后，通过Y / C或RGB布线获得的水平分辨率对于640线水平分辨率的单芯片相机来说是相同的，而RGB电缆为800线水平的三芯片相机提供了最佳图像。结论：使用基本的广播原理，我们开发了一种简单的设备，可用于比较手术室中不同的摄像机，电缆和腹腔镜配置。该信息可用作判断腹腔镜视频系统中图像质量的客观标准。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号