Scott Hsieh Phones & Addresses
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6723 Sedan Ave, West Hills, CA 91307
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Canoga Park, CA
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Los Angeles, CA
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Van Nuys, CA
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La Verne, CA
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Rowland Heights, CA
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West Hills, CA
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Rowland Heights, CA
Business Records
Name / Title
Company / Classification
Phones & Addresses
President
Loftoeira Corp
Nonclassifiable Establishments
Nonclassifiable Establishments
246 S Leandro St, Anaheim, CA 92807
Euston Oak Investment Lp
1835 S Del Mar Ave, San Gabriel, CA 91776
Partner
Tat Marketing Co
Marketing Consultant
Marketing Consultant
222 Winston St, Los Angeles, CA 90013
(213) 624-1747
(213) 624-1747
Publications
Us Patents
Method And Device For High-Resolution Three-Dimensional Imaging Which Obtains Camera Pose Using Defocusing
View pageUS Patent:
20090295908, Dec 3, 2009
Filed:
May 21, 2009
Appl. No.:
12/454707
Inventors:
Morteza Gharib - San Marino CA, US
Jian Lu - Laguna Hills CA, US
Scott Hsieh - Anaheim CA, US
Francisco Pereira - Rome, IT
Alexei Harvard - Pasadena CA, US
Jian Lu - Laguna Hills CA, US
Scott Hsieh - Anaheim CA, US
Francisco Pereira - Rome, IT
Alexei Harvard - Pasadena CA, US
International Classification:
H04N 13/02
G06K 9/00
G06K 9/00
US Classification:
348 46, 382154
Abstract:
A method and device for high-resolution three-dimensional (3-D) imaging which obtains camera pose using defocusing is disclosed. The device comprises a lens obstructed by a mask having two sets of apertures. The first set of apertures produces a plurality of defocused images of the object, which are used to obtain camera pose. The second set of optical filters produces a plurality of defocused images of a projected pattern of markers on the object. The images produced by the second set of apertures are differentiable from the images used to determine pose, and are used to construct a detailed 3-D image of the object. Using the known change in camera pose between captured images, the 3-D images produced can be overlaid to produce a high-resolution 3-D image of the object.
Accurate 3D Object Reconstruction Using A Handheld Device With A Projected Light Pattern
View pageUS Patent:
20110074932, Mar 31, 2011
Filed:
Aug 27, 2010
Appl. No.:
12/869919
Inventors:
Morteza Gharib - Altadena CA, US
Jian Lu - Pasadena CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Anaheim CA, US
Jian Lu - Pasadena CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Anaheim CA, US
Assignee:
CALIFORNIA INSTITUTE OF TECHNOLOGY - Pasadena CA
International Classification:
H04N 13/02
US Classification:
348 50, 348E13074
Abstract:
A lens and aperture device for determining 3D information. A projector projects an optical pattern toward a surface. The camera has at least two off-axis apertures thereon, arranged to obtain an image of the projected pattern including defocused information. The camera is movable between different positions to image the surface from said different positions, and the projector is at a specified angle of at least 5 relative to said camera. A processor carries out a first operation using information received through the apertures to determine a pose of said camera, and to determine three dimensional information about the object based on a degree of deformation of said optical pattern on said surface indicative of a three dimensional surface. An embodiment projects a grid of laser dots and uses laser-dot defocusing for approximate Z and thus grid correspondence, which can greatly increase the working depth of the system.
Three-Dimensional Imaging System
View pageUS Patent:
20130235165, Sep 12, 2013
Filed:
Nov 19, 2010
Appl. No.:
13/820116
Inventors:
Morteza Gharib - Pasadena CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Monrovia CA, US
Jian Lu - Monrovia CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Monrovia CA, US
Jian Lu - Monrovia CA, US
Assignee:
California Institute of Technology - Pasadena CA
International Classification:
H04N 13/02
US Classification:
348 50
Abstract:
Hardware and software configurations, optionally, for performing profilometry of an object are disclosed. An advantageous imaging device is described. An advantageous approach to determining imager position is also described. Each aspect described may be used independently of the other. Moreover, the teaching may find use in other fields including velocimetry, etc.
System And Method For Charge Sharing Compensation For X-Ray Photon Counting Detectors
View pageUS Patent:
20220187478, Jun 16, 2022
Filed:
May 1, 2020
Appl. No.:
17/602962
Inventors:
- Oakland CA, US
Scott S. Hsieh - Anaheim CA, US
Scott S. Hsieh - Anaheim CA, US
International Classification:
G01T 1/17
A61B 6/00
A61B 6/00
Abstract:
A system for charge sharing compensation for a photon counting detector. A plurality of comparators, each configured to generate comparator output data based on a threshold value, a plurality of energy bins, each of the plurality of energy bins coupled to one of the plurality of comparators, and a coincidence logic coupled to two or more of the plurality of comparators and configured to receive comparator output data associated with two or more of a plurality of pixels. The comparator output data for each pixel indicates when a signal associated with the pixel crosses a threshold value. The coincidence logic is configured to generate a coincidence output when the comparator output data for a first pixel is received within a predetermined time interval of the comparator output data for a second pixel. The system includes a coincidence counting bin coupled to the coincidence logic and configured to receive the coincidence output and generate count data based on the coincidence output.
Three-Dimensional Imaging System
View pageUS Patent:
20200275077, Aug 27, 2020
Filed:
Dec 4, 2018
Appl. No.:
16/209089
Inventors:
- Pasadena CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Anaheim CA, US
Jian Lu - Laguna Hills CA, US
Alexei Harvard - Pasadena CA, US
Scott Hsieh - Anaheim CA, US
Jian Lu - Laguna Hills CA, US
International Classification:
H04N 13/207
H04N 13/214
G06T 7/70
G06T 7/593
H04N 13/214
G06T 7/70
G06T 7/593
Abstract:
Hardware and software configurations, optionally, for performing profilometry of an object are disclosed. An advantageous imaging device is described. An advantageous approach to determining imager position is also described. Each aspect described may be used independently of the other. Moreover, the teaching may find use in other fields including velocimetry, etc.
Real-Time, Parallel X-Ray Tomosynthesis
View pageUS Patent:
20190126070, May 2, 2019
Filed:
Apr 10, 2017
Appl. No.:
16/092689
Inventors:
- Oakland CA, US
Scott S. Hsieh - Anaheim CA, US
Scott S. Hsieh - Anaheim CA, US
International Classification:
A61N 5/10
A61B 6/06
A61B 6/02
A61B 6/00
G06T 11/00
G01T 1/161
G01T 1/17
G01T 7/00
A61B 6/06
A61B 6/02
A61B 6/00
G06T 11/00
G01T 1/161
G01T 1/17
G01T 7/00
Abstract:
A device for performing tomosynthesis in real time is described. Multiple imaging sources (such as x-ray sources) may be energized in parallel and collimated towards a field of view. Objects within the field of view cast shadows onto one or more detectors. An imaging system may read the one or more detectors and acquire multiple views corresponding to the multiple imaging sources to produce a reconstructed image of an object of interest. From this reconstructed image, a target of the radiation therapy can be located, and the delivery of the radiation can be adjusted, as needed. The approach provides a real-time tomosynthesis design that can produce enhanced contrast for guidance of, for example, lung tumor treatment. Higher frame rates can be achieved to better compensate for changes in the position of the target during radiation therapy due to, for example, respiratory or cardiac motion.
Local Speed Of Sound Estimation Method For Medical Ultrasound
View pageUS Patent:
20180143165, May 24, 2018
Filed:
Nov 22, 2017
Appl. No.:
15/821040
Inventors:
- Palo Alto CA, US
Scott S. Hsieh - Anaheim CA, US
Marko Jakovljevic - Redwood City CA, US
Scott S. Hsieh - Anaheim CA, US
Marko Jakovljevic - Redwood City CA, US
International Classification:
G01N 29/07
A61B 8/00
A61B 8/08
A61B 8/00
A61B 8/08
Abstract:
Measuring local speed of sound for ultrasound by inducing ultrasound waves in a subject by focusing an ultrasound beam, using an ultrasound Tx transducer to propagate waves from a focal point to the surface, measuring a time of arrival of the waves using at least three single Rx transducer surface elements, signal traces recorded on individual Rx transducers are evenly sampled in time, an average speed of sound equals an arithmetic mean of local sound-speed values sampled along a wave path, each Rx transducer outputs a separate arrival time of the waves, computing a local speed of sound (c) of waves from an average speed of sound (c) using a computer that receives arrival times, wherewhere c=d/T, dis the length a tissue traveled during one sampling period T, and using cto differentiate human disease, or with ultrasound measurements to differentiate degrees of human disease.
X-Ray Anti-Scatter Grid With Varying Grid Ratio
View pageUS Patent:
20160328836, Nov 10, 2016
Filed:
Mar 18, 2016
Appl. No.:
15/073909
Inventors:
Scott Hsieh - Anaheim CA, US
International Classification:
G06T 7/00
G06T 11/00
G21K 1/10
G06T 3/40
A61B 6/03
A61B 6/00
G06T 11/00
G21K 1/10
G06T 3/40
A61B 6/03
A61B 6/00
Abstract:
A device for estimating scatter in X-ray imaging is described. An anti-scatter grid with varying grid ratio is used in conjunction with an X-ray detector. The anti-scatter grid comprises attenuating lamellae that block scattered radiation. The anti-scatter grid contains regions of lesser or greater scatter rejection efficiency, which can be achieved by variations in the grid ratio. Contrast between these regions can be used to estimate residual scatter content. A method for estimating scatter from this device is further described.