Automated stereophotogrammetry

Brookashire, Greg; Nadler, Morton; Lee, Choon

doi:10.1016/0734-189x(90)90059-5

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…Stereo-photogrammetry (Brookshire et al 1990) is an established wide field surface measurement technique based on triangulation of corresponding points. Passive, image texturebased, methods can be very accurate but are predicated on the presence of strong textures in the stereo images.…”

Section: Introductionmentioning

confidence: 99%

Real-time optical measurement of the dynamic body surface for use in guided radiotherapy

et al. 2011

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Optical measurements are increasingly used in radiotherapy. In this paper we present, in detail, the design and implementation of a multi-channel optical system optimized for fast, high spatial resolution, dynamic body surface measurement in guided therapy. We include all algorithmic modifications and calibration procedures required to create a robust, practical system for clinical use. Comprehensive static and dynamic phantom validation measurements in the radiotherapy treatment room show: conformance with simultaneously measured cone beam CT data to within 1 mm over 62% ± 8% of the surface and 2 mm over 90% ± 3%; agreement with the measured radius of a precision geometrical phantom to within 1 mm; and true real-time performance with image capture through to surface display at 23 Hz. An example patient dataset is additionally included, indicating similar performance in the clinic.

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Section: Introductionmentioning

confidence: 99%