David R Hart

US Patent:

20080071132, Mar 20, 2008

Filed:

Jul 20, 2007

Appl. No.:

11/880178

Inventors:

Gary Lamoureux - Woodbury CT, US
David Hart - Gilbert AZ, US
Richard Terwilliger - Livingston TX, US

International Classification:

A61M 36/12

US Classification:

600007000

Abstract:

A brachytherapy apparatus and method are provided for treating tissue forming an internal body cavity, such as an excised breast or brain tumor bed. The apparatus has at least one outer wall that is movable between (i) a retracted position spaced inwardly relative to tissue forming the internal body cavity, and (ii) an expanded position spaced outwardly and contiguous to tissue forming the internal body cavity. The outer wall is formed by a stent, a balloon catheter, or a plurality of axially-elongated solid or hollow flexible members that are angularly spaced relative to each other. A plurality of radiation sources are carried by the at least one outer wall and movable therewith between the retracted and expanded positions for transmitting radiation in the expanded position into the tissue forming the internal body cavity.

US Patent:

20220237799, Jul 28, 2022

Filed:

Jan 26, 2021

Appl. No.:

17/158527

Inventors:

- San Jose CA, US
David Hart - Orem UT, US
Zhihong Ding - Fremont CA, US
Scott Cohen - Sunnyvale UT, US

International Classification:

G06T 7/11
G06T 7/187
G06T 7/174
G06T 3/40

Abstract:

The present disclosure relates to a multi-model object segmentation system that provides a multi-model object segmentation framework for automatically segmenting objects in digital images. In one or more implementations, the multi-model object segmentation system utilizes different types of object segmentation models to determine a comprehensive set of object masks for a digital image. In various implementations, the multi-model object segmentation system further improves and refines object masks in the set of object masks utilizing specialized object segmentation models, which results in more improved accuracy and precision with respect to object selection within the digital image. Further, in some implementations, the multi-model object segmentation system generates object masks for portions of a digital image otherwise not captured by various object segmentation models.