Optical system calibration for 3D measurements in a hydrodynamic tunnel

نویسندگان

چکیده

For non-contact 3D measurements in hydrodynamic tunnels by photogrammetry methods, it is necessary to refine the standard model of image formation camera taking into account an effect refraction rays at boundaries optical media, namely, air-glass boundary and glass-working fluid boundary. The article presents a for shooting working environment that includes various media methods calibrating system coordinates scene objects, while real media. Experimental results on three-dimensional when object formed passing through two are discussed.

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Geometric Calibration of Digital Cameras for 3D Cumulus Cloud Measurements

A technique for calibrating digital cameras for stereo photogrammetry of cumulus clouds is presented. It has been applied to characterize the formation of summer thunderstorms observed during the Cumulus Photogrammetric, In Situ, and Doppler Observations (CuPIDO) project. Starting from gross measurements of locations, orientations of cameras, and landmark surveys, accurate locations and orienta...

متن کامل

Microphone Array Phased Processing System (MAPPS): Phased Array System for Acoustic Measurements in a Wind Tunnel

A processing system has been developed to meet increasing demands for detailed noise measurement of aircraft in wind tunnels. Phased arrays enable spatial and amplitude measurements of acoustic sources, including low signal-to-noise sources not measurable by conventional measurement techniques. The Microphone Array Phased Processing System (MAPPS) provides processing and visualization of acoust...

متن کامل

Developing a 3D Reconstruction System for Surgical Planning in Neurovascular Surgery (In press)

Introduction: Neurovascular lesions may cause death or disability. Some of them are operable, but surgical approaches to these lesions are complicated and proper access is crucial. A few numbers of these surgeries occur in every resident education period and their experience for operating these lesions may be quite inadequate. Using new technologies like 3D-restructure of vascular lesion images...

متن کامل

passivity in waiting for godot and endgame: a psychoanalytic reading

this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...

Stent optical inspection system calibration and performance.

Implantable medical devices, such as stents, have to be inspected 100% so no defective ones are implanted into a human body. In this paper, a novel optical stent inspection system is presented. By the combination of a high numerical aperture microscope, a triple illumination system, a rotational stage, and a CMOS camera, unrolled sections of the outer and inner surfaces of the stent are obtaine...

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

ژورنال

عنوان ژورنال: Computer Optics

سال: 2021

ISSN: ['2412-6179', '0134-2452']

DOI: https://doi.org/10.18287/2412-6179-co-741