Dr. Bian Hu Profile

Dr. Bian Hu

Research Systems Engineer

SPIE Involvement:

Author

Publications (2)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 7 May 2007 Paper

Laser multispectral polarimetric diffuse-scatter imaging

Yang Wang, Bian Hu, Han Le

Proceedings Volume 6565, 65650R (2007) https://doi.org/10.1117/12.719247

KEYWORDS: Scattering, Spectroscopy, Light scattering, Laser scattering, Dielectric polarization, Polarimetry, Photography, Aluminum, Dielectrics, Surface roughness

Read Abstract +

Laser multi-spectral polarimetric diffuse scattering (LAMPODS) imaging is an approach that maps object intrinsic optical scattering properties rather than the scattered light intensity like in conventional imaging. The technique involves comprehensive measurements to parameterize object optical responses with respect to wavelength, polarization, and diffuse scattering. The derived parametric properties constitute LAMPODS images, which are more fundamental than conventional images. The application is to uncover and discriminate features that are not obvious or obtainable with conventional imaging. The experiments were performed for a number of targets, using near-infrared lasers. A system architecture design configured similarly to optical wireless network is described, which can be used as a design for a LAMPODS "camera". The results for a number of targets indicate unique LAMPODS capabilities to distinguish and classify features based on optics principles rather than phenomenological image processing. Examples of uncovering, enhancing, and interpreting target features, which are unseen or ambiguous in conventional images, are described.

Proceedings Article | 4 May 2007 Paper

Multi-static networked 3D ladar for surveillance and access control

Y. Wang, S. S. Ogirala, B. Hu, Han Le

Proceedings Volume 6550, 65500U (2007) https://doi.org/10.1117/12.719381

KEYWORDS: LIDAR, Target detection, Receivers, Surveillance, Radar, Cameras, Transmitters, Network architectures, Sensors, Computer intrusion detection

Read Abstract +

A theoretical design and simulation of a 3D ladar system concept for surveillance, intrusion detection, and access control is described. It is a non-conventional system architecture that consists of: i) multi-static configuration with an arbitrarily scalable number of transmitters (Tx's) and receivers (Rx's) that form an optical wireless code-division-multiple-access (CDMA) network, and ii) flexible system architecture with modular plug-and-play components that can be deployed for any facility with arbitrary topology. Affordability is a driving consideration; and a key feature for low cost is an asymmetric use of many inexpensive Rx's in conjunction with fewer Tx's, which are generally more expensive. The Rx's are spatially distributed close to the surveyed area for large coverage, and capable of receiving signals from multiple Tx's with moderate laser power. The system produces sensing information that scales as NxM, where N, M are the number of Tx's and Rx's, as opposed to linear scaling ~N in non-network system. Also, for target positioning, besides laser pointing direction and time-of-flight, the algorithm includes multiple point-of-view image fusion and triangulation for enhanced accuracy, which is not applicable to non-networked monostatic ladars. Simulation and scaled model experiments on some aspects of this concept are discussed.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years