Epipolar Geometry for Vision-guided Laser Surgery

نویسندگان

  • Nicolas Andreff
  • Sounkalo Dembélé
  • Brahim Tamadazte
  • Zill-e Hussnain
چکیده

This paper proposes to use the analogy between a scanning laser beam and a camera. Thereby, a degenerate stereoscopic system can be defined by such a virtual camera and a real camera observing the laser spot on the tissues. Using the associated epipolar geometry, a control law is derived without any matrix inversion nor estimation of the 3D scene. This control law shows exponential convergence in simulation.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Preliminary variation on multiview geometry for vision-guided laser surgery

This paper proposes to use the multiview geometry to control an orientable laser beam for surgery. Two methods are proposed based on the analogy between a scanning laser beam and a camera: the first method uses one camera and the laser scanner as a virtual camera to form a virtual stereoscopic system while the second method uses two cameras to form a virtual trifocal system. Using the associate...

متن کامل

A Robust Corresponding Points for Uncalibrated Stereo Images

There are many problems when we find matching points of stereo images using only the epipolar geometry. Therefore, we use a correlation technique to find an initial set of matched points, and then examine motion vectors to remove mismatched points among the candidates. Then the epipolar geometry can be accurately estimated using a well adapted criterion with the fundamental matrix. We also intr...

متن کامل

A New Epipolarity Model Based on the Simplified Pushbroom Sensor Model

This paper addresses the epipolar geometry of linear pushbroom imagery. Two images of a single scene are related by epipolar geometry which contain all geometric information and is essential for the three dimensional reconstruction of the scene in computer vision and remote sensing. It is told that the epipolar geometry of the linear pushbroom sensor is different from that of the perspective on...

متن کامل

Epipolar Geometry in Polycentric Panoramas

We introduce a new class of panoramic images, called polycentric panoramic images, which is a generalization from more specific classes such as single-center, multiple-center, or concentric panoramic images. This paper focuses on the derivation of an epipolar curve equation for polycentric panoramic images. The epipolar curve equation derived provides a unified approach for the epipolar geometr...

متن کامل

Epipolar Line Generation from Ikonos Imagery Based on Rational Function Model

High-resolution satellite imagery is expected to be a major source of 3D measurement of ground, especially automatic stereo plotting to generate DEM by stereo matching technology is highly required. Epipolarity is a very useful concept in processing stereo imagery, and it has been widely used in process images captured by frame cameras. Different from perspective image, every scan line of linea...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013