Dr. Lawrence B. Wolff Profile

Dr. Lawrence B. Wolff

President/CEO at Equinox Corp

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 7 May 2007 Paper

Phenomenological modeling of surface roughness for predicting reflection from targets

Lawrence Wolff

Proceedings Volume 6566, 656602 (2007) https://doi.org/10.1117/12.721312

KEYWORDS: Reflectivity, Visual process modeling, Specular reflections, Reflection, Data modeling, Signal attenuation, Machine vision, Computer vision technology, Atomic force microscopy, Computer graphics

Read Abstract +

Proceedings Article | 18 May 2006 Paper

Versatile low-power multispectral video fusion hardware

Lawrence Wolff, Diego Socolinsky, Christopher Eveland

Proceedings Volume 6206, 620624 (2006) https://doi.org/10.1117/12.669434

KEYWORDS: Image fusion, Video, Visible radiation, Infrared imaging, Thermography, Infrared radiation, Cameras, Visualization, Short wave infrared radiation, Infrared cameras

Read Abstract +

Proceedings Article | 18 May 2006 Paper

Face recognition in low-light environments using fusion of thermal infrared and intensified imagery

Diego Socolinsky, Lawrence Wolff, Andrew Lundberg

Proceedings Volume 6206, 620622 (2006) https://doi.org/10.1117/12.682604

KEYWORDS: Facial recognition systems, Thermography, Detection and tracking algorithms, Long wavelength infrared, Infrared imaging, Infrared radiation, Cameras, Visible radiation, Sensors, Principal component analysis

Read Abstract +

Proceedings Article | 17 April 2006 Paper

Face recognition with intensified NIR imagery

Diego Socolinsky, Lawrence Wolff, Andrew Lundberg

Proceedings Volume 6202, 620203 (2006) https://doi.org/10.1117/12.665532

KEYWORDS: Facial recognition systems, Near infrared, Cameras, Visible radiation, Detection and tracking algorithms, Light sources and illumination, Microchannel plates, Sensors, System identification, Video

Read Abstract +

Proceedings Article | 28 March 2005 Paper

Advances in low-power visible/thermal IR video image fusion hardware

Lawrence Wolff, Diego Socolinsky, Christopher Eveland, C. E. Reese, E. J. Bender, M. V. Wood

Proceedings Volume 5782, (2005) https://doi.org/10.1117/12.603655

KEYWORDS: Image fusion, Thermography, Infrared imaging, Visible radiation, Video, Infrared radiation, Visualization, Cameras, Infrared cameras, Image visualization

Read Abstract +

Proceedings Article | 10 October 2003 Paper

Using infrared sensor technology for face recognition and human identification

Lawrence Wolff, Diego Socolinsky, Christopher Eveland

Proceedings Volume 5074, (2003) https://doi.org/10.1117/12.498156

KEYWORDS: Infrared imaging, Long wavelength infrared, Infrared radiation, Facial recognition systems, Thermography, Visible radiation, Databases, Mid-IR, Detection and tracking algorithms, Image fusion

Read Abstract +

Proceedings Article | 11 September 2003 Paper

Image fusion of shortwave infrared (SWIR) and visible for detection of mines, obstacles, and camouflage

Lawrence Wolff, Diego Socolinsky, Christopher Eveland, Jacob Yalcin, John Holloway

Proceedings Volume 5089, (2003) https://doi.org/10.1117/12.500628

KEYWORDS: Short wave infrared radiation, Image fusion, Visible radiation, Cameras, Land mines, Infrared radiation, Shortwaves, Infrared detectors, Infrared imaging, Camouflage

Read Abstract +

Proceedings Article | 11 September 2003 Paper

Underwater partial polarization signatures from the shallow water real-time imaging polarimeter (SHRIMP)

James Taylor, P. Davis, Lawrence Wolff

Proceedings Volume 5089, (2003) https://doi.org/10.1117/12.501570

KEYWORDS: Polarization, Polarimetry, Target detection, Cameras, Water, Sensors, Real time imaging, Mining, Visualization, Video

Read Abstract +

Proceedings Article | 23 January 2003 Paper

Using infrared sensor technology for face recognition and human identification

Lawrence Wolff, Diego Socolinsky, Christopher Eveland

Proceedings Volume 4820, (2003) https://doi.org/10.1117/12.457626

KEYWORDS: Skin, Cameras, Black bodies, Facial recognition systems, Mid-IR, Long wavelength infrared, Calibration, Visible radiation, Detection and tracking algorithms, Glasses

Read Abstract +

Proceedings Article | 25 October 1999 Paper

Thermal emission polarization

Lawrence Wolff, Andrew Lundberg, Renjie Tang

Proceedings Volume 3754, (1999) https://doi.org/10.1117/12.366318

KEYWORDS: Dielectric polarization, Thermal modeling, Polarization, Metals, Dielectrics, Aluminum, Glasses, Data modeling, Surface roughness, Solid modeling

Read Abstract +

Proceedings Article | 23 July 1999 Paper

SHRIMP: shallow-water real-time imaging polarimeter

James Taylor, Lawrence Wolff

Proceedings Volume 3711, (1999) https://doi.org/10.1117/12.354648

KEYWORDS: Polarization, Dielectric polarization, Liquid crystals, Cameras, Video, Visualization, Metals, Sensors, Enhanced vision, Image processing

Read Abstract +

Proceedings Article | 26 May 1999 Paper

Image fusion for enhanced visualization of brain imaging

Diego Socolinsky, Lawrence Wolff

Proceedings Volume 3658, (1999) https://doi.org/10.1117/12.349447

KEYWORDS: Visualization, Image fusion, Multispectral imaging, Image visualization, Principal component analysis, Magnetic resonance imaging, Image enhancement, Medical imaging, Image analysis, Sensors

Read Abstract +

Proceedings Article | 21 May 1999 Paper

Brain imaging registration by correlation of first-order geometry

Diego Socolinsky, Aswin Krishnamoorthy, Lawrence Wolff

Proceedings Volume 3661, (1999) https://doi.org/10.1117/12.348644

KEYWORDS: Image registration, Magnetic resonance imaging, Computed tomography, Brain imaging, Brain, Head, Positron emission tomography, Neuroimaging, Image processing, Error analysis

Read Abstract +

Proceedings Article | 20 January 1997 Paper

Curvature-based signatures for object description and recognition

Elli Angelopoulou, James Williams, Lawrence Wolff

Proceedings Volume 2909, (1997) https://doi.org/10.1117/12.263322

KEYWORDS: Light sources, Object recognition, Cameras, Optical spheres, Databases, Reflection, Condition numbers, Light sources and illumination, Fiber optic illuminators, Matrices

Read Abstract +

Proceedings Article | 19 January 1996 Paper

Polarization phase-based method for material classification and object recognition in computer vision

Hua Chen, Lawrence Wolff

Proceedings Volume 2599, (1996) https://doi.org/10.1117/12.230405

KEYWORDS: Metals, Polarization, Dielectric polarization, Dielectrics, Specular reflections, Phase shifts, Machine vision, Computer vision technology, Glasses, Wave plates

Read Abstract +

Proceedings Article | 6 June 1995 Paper

Portable imaging polarized light analyzer

Nadav Shashar, Thomas Cronin, George Johnson, Lawrence Wolff

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211209

KEYWORDS: Polarization, Cameras, Sensors, Optical filters, Image analysis, Video, Liquid crystals, Water, Camouflage, Sun

Read Abstract +

Proceedings Article | 24 May 1995 Paper

Computer models for computation and verification of bronchial morphology

Chandrasekhar Pisupati, Lawrence Wolff, Wayne Mitzner, Elias Zerhouni

Proceedings Volume 2433, (1995) https://doi.org/10.1117/12.209684

KEYWORDS: 3D modeling, Data modeling, Lung, 3D metrology, Nickel, 3D image processing, Computer simulations, Image segmentation, Optimization (mathematics), Algorithm development

Read Abstract +

Proceedings Article | 15 March 1994 Paper

3D stereo using photometric ratios

Lawrence Wolff, Elli Angelopoulou

Proceedings Volume 2065, (1994) https://doi.org/10.1117/12.169365

KEYWORDS: Cameras, Light sources, Reflection, Optical spheres, Light sources and illumination, Stereoscopic cameras, Algorithm development, Reflectivity, Image processing, Specular reflections

Read Abstract +

Proceedings Article | 25 February 1994 Paper

Polarization vision for object detection

Lawrence Wolff, Peter Costianes

Proceedings Volume 2103, (1994) https://doi.org/10.1117/12.169462

KEYWORDS: Dielectric polarization, Cameras, Polarization, Sensors, Liquid crystals, Visualization, Image processing, Image understanding, Specular reflections, Optical filters

Read Abstract +

Proceedings Article | 6 January 1994 Paper

Segmentation of surface curvature using a photometric invariant

Lawrence Wolff, Joel Fan

Proceedings Volume 2348, (1994) https://doi.org/10.1117/12.198856

KEYWORDS: Reflectivity, Light sources, Image segmentation, Reflection, Cameras, Calibration, Diffuse reflectance spectroscopy, Nose, 3D vision, Data modeling

Read Abstract +

SPIE Journal Paper | 1 January 1994

Relative brightness of specular and diffuse reflection

Lawrence Wolff

OE, Vol. 33, Issue 01, (January 1994) https://doi.org/10.1117/12.10.1117/12.149144

KEYWORDS: Reflection, Specular reflections, Dielectrics, Solids, Light sources, Scattering, Refraction, Metals, Light scattering, Reflectivity

Read Abstract +

Proceedings Article | 1 December 1993 Paper

Diffuse reflection from smooth dielectric surfaces

Lawrence Wolff

Proceedings Volume 1995, (1993) https://doi.org/10.1117/12.162663

KEYWORDS: Reflection, Dielectrics, Scattering, Light scattering, Solids, Refraction, Light sources, Visual process modeling, Diffuse reflectance spectroscopy, Reflectivity

Read Abstract +

Proceedings Article | 23 March 1993 Paper

Diffuse reflectance model for dielectric surfaces

Lawrence Wolff

Proceedings Volume 1822, (1993) https://doi.org/10.1117/12.141950

KEYWORDS: Reflection, Dielectrics, Scattering, Light scattering, Visual process modeling, Solids, Refraction, Reflectivity, Diffuse reflectance spectroscopy, Machine vision

Read Abstract +

Proceedings Article | 1 November 1992 Paper

Liquid-crystal polarization camera

Lawrence Wolff, Todd Mancini

Proceedings Volume 1823, (1992) https://doi.org/10.1117/12.132068

KEYWORDS: Polarization, Dielectric polarization, Cameras, Liquid crystals, Polarizers, CCD cameras, Reflection, Specular reflections, Visualization, Optical filters

Read Abstract +

We present a fully automated system which unites CCD camera technology with liquid crystal technology to create a polarization camera capable of sensing the polarization of reflected light from objects at pixel resolution. As polarization affords a more general physical description of light than does intensity, it can therefore provide a richer set of descriptive physical constraints for the understanding of images. Recently, it has been shown that polarization cues can be used to perform dielectric/metal material identification, specular and diffuse reflection component analysis, as well as complex image segmentations that would be immensely more complicated or even infeasible using intensity and color alone. Such analysis has so far been done with a linear polarizer mechanically rotated in front of a CCD camera. The full automation of resolving polarization components using liquid crystals not only affords an elegant application, but reduces the amount of optical distortion present in the wobbling of a mechanically rotating polarizer. In our system two twisted nematic liquid crystals are placed in front of a fixed polarizer placed in front of a CCD camera. The application of a series of electrical pulses to the liquid crystals in synchronization with the CCD camera video frame rate produces a controlled sequence of polarization component images that are stored and processed on Datacube boards. We present a scheme for mapping polarization states into hue, saturation, and intensity which is a very convenient representation for a polarization image. Our polarization camera outputs such a color image which can then be used in polarization- based vision methods. The unique vision understanding capabilities of our polarization camera system are demonstrated with experimental results showing polarization-based dielectric/metal material classification, specular reflection, and occluding contour segmentations in a fairly complex scene, and surface orientation constraints for object recognition.

Proceedings Article | 1 March 1992 Paper

Three-dimensional shape and source location from depth and reflectance

Todd Mancini, Lawrence Wolff

Proceedings Volume 1614, (1992) https://doi.org/10.1117/12.57971

KEYWORDS: Light sources, Reflectivity, Machine vision, Error analysis, Silicon, Laser range finders, Iterative methods, Image restoration, Data analysis, Light

Read Abstract +

Showing 5 of 25 publications

Conference Committee Involvement (3)

Biometric Technology for Human Identification III

17 April 2006 | Orlando (Kissimmee), Florida, United States

Biometric Technology for Human Identification II

28 March 2005 | Orlando, Florida, United States

Biometric Technology for Human Identification

12 April 2004 | Orlando, Florida, United States

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

Keywords/Phrases

Search In:

Publication Years