Ming Juan Li

US Patent:

55031536, Apr 2, 1996

Filed:

Jun 30, 1995

Appl. No.:

8/491332

Inventors:

Ming Li - Seattle WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

12866108

Abstract:

A method for measuring the interframe movement of pixels in a second ultrasoud image frame with respect to the pixels in a first ultrasoud image frame. The movement information may be displayed to provide enhanced information about the underlying physiology or to provide a temporally compounded image having reduced noise. In the preferred embodiment of the present invention, the pixels in that actually change between frames are identified. The first frame is divided into blocks and an estimated velocity computed for each block having a sufficient number of pixels that actually moved between the first and second frames. After all of the velocity estimates have been computed, blocks having questionable velocity estimates are identified. Blocks for which the velocity estimate was questionable are then provided with a velocity estimate by interpolating the velocity vectors of the nearby blocks having valid velocity estimates. The preferred method for estimating the velocity utilizes a modified optical flow computation that is more stable than prior art optical flow models.

US Patent:

55821731, Dec 10, 1996

Filed:

Sep 18, 1995

Appl. No.:

8/529778

Inventors:

Ming Li - Seattle WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

12866007

Abstract:

A region of tissue is scanned as a series of 2-D frames. The correlation of substantially homogeneous speckle regions in the frames is determined and is compared with a precalibrated speckle correlation-versus-distance function to give an estimate of the distance between the frames. In some applications, the frames are partitioned into sub-frames, whose correlation values and distances are combined according to predetermined functions to give a distance estimate between the frames as a whole. The reliability of the distance estimates is improved and evaluated in various ways, for example, by comparing combinations of possible distances from end frames via intermediate frames, and by comparing computed frame or sub-frame velocities with a known or estimated transducer velocity. Once the relative distances of the 2-D frames are estimated, a 3-D image is compiled using registration techniques. Image frames need not be parallel.

US Patent:

54233186, Jun 13, 1995

Filed:

Jun 23, 1994

Appl. No.:

8/264545

Inventors:

Ming Li - Seattle WA
Jin Kim - Issaquah WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

12866101

Abstract:

Apparatus for adaptive phase aberration correction of wave distortions caused by tissue inhomogeneities in ultrasound images. In accordance with the present invention, auto-correlation apparatus in multiple, parallel, color flow processors compute a cross-correlation which is used to correct distortions in real time.

US Patent:

55666752, Oct 22, 1996

Filed:

Jun 30, 1995

Appl. No.:

8/497176

Inventors:

Ming Li - Seattle WA
Levin Nock - Issaquah WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

12866101

Abstract:

An ultrasonic imaging system is provided that effectively corrects for inhomogeneities in the imaged media. The ultrasonic imaging system comprises a transducer array having a plurality of transducer elements each being separately operable to provide an ultrasonic pulse in response to a driving signal and to provide a corresponding echo signal in response to a received echo based on the ultrasonic pulse. A transmitter is coupled to the transducer array and provides the driving signal to each respective one of the transducer elements. The driving signals define a steered beam of the transducer array. A receiver is coupled to the transducer array and receives the echo signal from each respective one of the transducer elements. The receiver includes a beamformer section that produces a single matched and summed signal from the echo signals of the plurality of transducer elements. The beamformer section comprises a plurality of processing modules coupled in a cascading arrangement with separate processing stages.

US Patent:

55402283, Jul 30, 1996

Filed:

Sep 29, 1995

Appl. No.:

8/536409

Inventors:

Ming Li - Seattle WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

12866007

Abstract:

An interrogation region of a patient's body is scanned with an ultrasonic probe. At least one input data frame is generated representing the scanned interrogation region as a pattern of image elements, each with a corresponding input intensity value, that are stored in a memory. The input data frame is then displayed as a pattern of displayed intensity values, which the processor calculates as combination of a geometry-independent function of an ambient light input array and a geometry-dependent function of the input intensity values, in which the geometry-dependent function includes a coefficient term that multiplies the input intensity array and that itself is a function of the input intensity values. As part of the coefficient term is a filtered input data array, which results from noise-floor filtering, low-pass filtering, and surface normal vector averaging of the input intensity array. In a preferred embodiment of the invention, the user selects an assumed light source vector, and/or an assumed viewer direction vector, which are the incorporated into the geometry-dependent function used to calculate displayed intensity values.

US Patent:

56221720, Apr 22, 1997

Filed:

Sep 29, 1995

Appl. No.:

8/536509

Inventors:

Ming Li - Seattle WA
Jin Kim - Issaquah WA

Assignee:

Siemens Medical Systems, Inc. - Iselin NJ

International Classification:

A61B 800

US Classification:

1286611

Abstract:

An ultrasonic imaging system has a three-dimensional acoustic display. Beam-formed ultrasound scan signals are separated into channel signals and are then filtered using head-related transfer function (HRTF) filters. An HRTF is associated with each of several points in an interrogation region. A filter coefficient processor selects, for each channel signal, a set of HRTF filter parameters according to which sample volume the channel signal comes from. Each HRTF parameter set defines left-ear and right-ear response functions to a calibration sound generated at a calibration point in a calibration space; the calibration point itself corresponds to a predetermined position in the interrogation region. The HRTF-filtered channel signals are then combined into left and right audio output signals which drive left and right speakers that the user listens to while performing the ultrasound scan. The calibration points in the calibration space are mapped to respective reference sample volumes located in a predetermined ultrasonic interrogation region.

US Patent:

20190207962, Jul 4, 2019

Filed:

Dec 28, 2017

Appl. No.:

15/857102

Inventors:

- Redmond WA, US
Ming LI - Sammamish WA, US
Lingwei LI - Sammamish WA, US
Jian LI - Bellevue WA, US

International Classification:

H04L 29/06
G06N 5/02
G06F 21/55
H04L 12/26

Abstract:

An anomaly detection system that performs data aggregation against user-defined subsets of multiple variable columns within an aggregation table. Various embodiments enable users to generate rules by defining values for user-defined subsets of variables of an aggregation table that is used to deploy numerous other rules. Thus, if an aggregation table includes hundreds of columns each associated with discrete variables, a user may generate rules for aggregating data into specific variable columns of the aggregation table rather than into all of the hundreds of variable columns. The user may also define a sliding time window for the rule to be applied against and to set an occurrence threshold for the user-defined sliding time window. When a rule is triggered, the anomaly detection system may automatically generate a post-analysis table by preemptively and selectively populating the post-analysis table with values of event data indicated by a cardinality threshold and/or filter parameters.

US Patent:

20190179967, Jun 13, 2019

Filed:

Dec 8, 2017

Appl. No.:

15/836468

Inventors:

- Menlo Park CA, US
Ming Fei Li - Seattle WA, US
Prakash Ahuja - Redmond WA, US
Yue Cai - Kirkland WA, US
Sean Michael Wiese - Seattle WA, US
Yi-Lin Jao - Seattle WA, US
Ziqin Wang - Seattle WA, US

International Classification:

G06F 17/30
H04L 29/08

Abstract:

Techniques are provided for enhancing a user's browsing experience, especially when the user is browsing third party websites via an application. For example, a user may use the application to browse web pages served from a third party website that is associated with a particular domain. While browsing the third party web pages, the user may save a URL corresponding to a third party web page that the user is currently viewing. In this manner, the user may store one or more URLs corresponding to web pages served from the third party website and/or served from multiple different third party domains browsed by the user. The saved URLs may be associated with the user. When the user browses web pages associated with a particular domain, a user selectable option may be provided that enables the user to see URLs stored for the user that are associated with that particular domain. The user may then select a particular displayed URL to access the web page corresponding to the selected URL.