Dr. Tim Poston

Dr. Tim Poston

Dr. Tim Poston

Chief Scientist at SankhyaSutra labs

Tim Poston is an interdisciplinary scientist, with a 1972 Mathematics PhD from the University Of Warwick, England. He has since worked in universities from Brazil to South Korea, and in companies ranging from start-ups to GE, in sciences and technologies from ophthalmology to archaeology. Much of this work has led to books and other publications (88, with 2,160 citations on ResearchGate), some to patents (currently 26 issued, several pending), from search presentation technology to glyph rendering, calibrating magnetic resonance receiver coils, the 5-dimensional geometry of real binary quartics, vibration spectra of crystals, brain surgery planning, settlement patterns in archaeology, rod buckling, vision (human and machine), and machine learning. For the last two decades his chief concerns have been in the acquisition and analysis of medical images, and practical human-machine interaction.  On August 1, 2016 he published his first novel, The Living Labyrinth, co-authored with Ian Stewart.

PATENTS

Imaging system and method

There is provided an imaging system comprising image capture apparatus and display apparatus. The image capture apparatus is for capturing an image of an operator work site, the image including depth information. The display apparatus is in communication with the image capture apparatus, and comprises at least one display screen. The display apparatus is arranged to receive the image captured by the image capture apparatus, including the depth information, and display to the operator the image captured by the image capture apparatus, including the depth information, on the display screen. The display screen is located between the operator’s eyes and the position of the work site. There is also provided a method for capturing and displaying an image of an operator work site.

Imaging device and method

An imaging system comprising an image capture apparatus, arranged to capture a stereoscopic image of an operator work site, in communication with a display system; the display system arranged to receive and display said stereoscopic image on a display screen to said operator; wherein said display system is arranged such that the display screen is placed intermediate the operator’s eyes and the work site.

Contour guided deformable image registration

A method includes obtaining first volumetric image data, which is acquired at a first time, including a region of interest with a structural feature located at a first position. The method further includes obtaining second volumetric image data, which is acquired at a second different time, including the region of interest with the structural feature located at a second different position. The method further includes determining a registration transformation that registers the first and second volumetric image data such that the at least one structural feature in the first volumetric image data aligns with the at least one structural feature in the second volumetric image data. The registration transformation is based at least on a contour guided deformation registration. The method further includes generating a signal indicative of the registration transformation.

APPARATUS AND METHOD FOR DISTRIBUTED ULTRASOUND DIAGNOSTICS

A local user obtains data on the response of internal tissues of a subject to a non-invasive imaging system, choosing sensor positions according to a geometric display. The data obtained are evaluated with respect to predefined quantitative values. The process of obtaining and processing the internal tissue response data is repeated until an image meeting predetermined image quality characteristics is obtained. Specific or general content of the image may be restricted by the local processor, with a distal processor receiving the obtained image data, so as to limit specific or general types of image information from being viewed by the local user, such as image data that can be used to identify the sex of a fetus within the subject.

IMAGING DEVICE AND METHOD

An imaging system comprising an image capture apparatus, arranged to capture a stereoscopic image of an operator work site, in communication with a display system; the display system arranged to receive and display said stereoscopic image on a display screen to said operator; wherein said display system is arranged such that the display screen is placed intermediate the operator’s eyes and the work site.

IMAGING SYSTEM AND METHOD

There is provided an imaging system comprising image capture apparatus and display apparatus. The image capture apparatus is for capturing an image of an operator work site, the image including depth information. The display apparatus is in communication with the image capture apparatus, and comprises at least one display screen. The display apparatus is arranged to receive the image captured by the image capture apparatus, including the depth information, and display to the operator the image captured by the image capture apparatus, including the depth information, on the display screen. The display screen is located between the operator’s eyes and the position of the work site. There is also provided a method for capturing and displaying an image of an operator work site.

Creating, directing and steering regions of intensity of wave propagation in inhomogeneous media

Known time reversal methods consist of three steps which may be listed as (i) the recording of signals and (ii) the time reversing of the recorded signals, and (iii) the transmission of the time-reversed signals. The first and third steps of the above process are retained, but the second step is modified. The empirical signal is transformed to fit mathematical forms taught by the mathematics of singularity and catastrophe theory that ensure a structural stability to the waveforms that will be received, when the time reversed signals are transmitted again. This structural stability ensures robustness of the waveform and the predominant direction of the flux of energy of the waveform, and improves controllability of the location of the high magnitude regions of the energy flux despite limited knowledge of the exact properties of the medium. Applications to drug delivery in the brain, and geophysical applications are envisaged.

Glyph rendering

Techniques are provided for glyph rendering based on a polygon mesh having vertices located away from a glyph’s outline. Skeletonisation may be used to establish polygonal skeletons in the interior region of a glyph and in the outside region of the glyph. Transepts oriented away from the glyph’s outline may be generated for nodes on the glyph’s outline. A polygon mesh may be generated with vertices constrained to be selected from a set of candidate vertices comprising termination points of transepts, skeleton nodes, and/or points on the glyph’s bounding boxes. Implicit forms may be determined from curves or lines representing segments of the glyph’s outline, without use of Bézier control points and endpoints. These implicit forms along with tessellation data may be provided to a computing device as glyph rendering data for rendering the glyph at runtime.

CONTOUR GUIDED DEFORMABLE IMAGE REGISTRATION

A method includes obtaining first volumetric image data, which is acquired at a first time, including a region of interest with a structural feature located at a first position. The method further includes obtaining second volumetric image data, which is acquired at a second different time, including the region of interest with the structural feature located at a second different position. The method further includes determining a registration transformation that registers the first and second volumetric image data such that the at least one structural feature in the first volumetric image data aligns with the at least one structural feature in the second volumetric image data. The registration transformation is based at least on a contour guided deformation registration. The method further includes generating a signal indicative of the registration transformation.

SEARCH AND PRESENTATION ENGINE

A contents display and search system for navigating and searching and exploring a collection of objects includes a database of Attributes; each of the Attributes being associated with one or more objects, and a database of Kinds, each Kind being associated with one or more Attributes. When a user enters a search query including at least one Attribute, an object is tested to determine whether it has Attributes of the Kind corresponding to the Kind of the at least one specified Attribute before function testing is performed. Search and contents investigation results are presented in a hierarchical format in which Kinds and Attributes rather than objects, are displayed until the search or content type is further specified by selecting additional Kinds and/or Attributes such that the number of objects satisfying the specified search is below a threshold. User interaction modifies the hierarchical order of Kinds and Attributes in the display.

Search and presentation engine

A contents display and search system for navigating and searching and exploring a collection of objects includes a database of Attributes; each of the Attributes being associated with one or more objects, and a database of Kinds, each Kind being associated with one or more Attributes. When a user enters a search query including at least one Attribute, an object is tested to determine whether it has Attributes of the Kind corresponding to the Kind of the at least one specified Attribute before function testing is performed. Search and contents investigation results are presented in a hierarchical format in which Kinds and Attributes rather than objects, are displayed until the search or content type is further specified by selecting additional Kinds and/or Attributes such that the number of objects satisfying the specified search is below a threshold. User interaction modifies the hierarchical order of Kinds and Attributes in the display.

System and process for metabolic guidance of introduced cellular material

A computer-implemented system and method for determining an optimal manner of introducing and moving an introduced entity from an introduction site to a target tissue region. The method comprises: calculating a modeling value at the introduction site, the pathway to the target tissue region, and the target tissue region; calculating a diffusion value representing a concentration gradient of the introduced entity as it moves through the introduction site, the pathway, and the target tissue region; calculating a flow value representing how the introduced entity is transported through the introduction site, the pathway, and the target tissue region; and determining a time, location, and method for introducing and moving the introduced entity based on the modeling value, the diffusion value, and the flow value.

Method and system for facilitating the examination of documents

The user is enabled to move smoothly between viewing an entire document in a word by word display, through views that display only elements of increasing landmark value, to an overview of the document in a single display window. A document is parsed into a hierarchy, of which each node at every level (from chapter to sentence, clause or long word) has a display state (invisible, tokenized or open) for the way it is shown as part of an expandable view of the document. The contents opted for display within a tokenized view may be prioritized according to a system of landmark values. The view is modified by user input using an explicit data structure of nodes and states within the device controlling the display, or by structuring in another system the underlying logic of the arrangement of code that is acted upon by a web browser.

COMPUTER INPUT DEVICE ENABLING THREE DEGREES OF FREEDOM AND RELATED INPUT AND FEEDBACK METHODS

Disclosed herein are a system and method for simultaneously reporting changes in location and orientation of an object moving over a planar surface and forming part of a computer input device, interoperably with a conventional mouse where reporting only location is in question. Further the present invention provides improved ways of user interaction with computer displays of two and three dimensional data and structures.

APPARATUS AND METHOD FOR MEASURING IN VIVO BIOMECHANICAL PROPERTIES OF SKIN

An assembly for measuring in vivo biomechanical properties of skin, comprising a testing device, said testing device comprising; a first pad attachable to the skin a second pad attachable to the skin, at a known distance from the first pad; said attachability of the pads to the skin to prevent relative movement between the respective pad and the skin to which it is attached; a forcing means for applying a force to the first pad, whilst said pads are attached to the skin, along a first axis connecting the first and second pad, to induce a corresponding relative movement between the pads due to deformation of the skin between said pads; a force measurement device for measuring the applied force, and; a displacement measurement device for measuring the corresponding induced movement.

Method and system for harmonization of variants of a sequential file

A set of versions of a file, with one chosen as baseline version, is displayed as a single flow of material where all agree with the baseline and in separate difference columns where they do not. A current version may be edited either directly or by adoption of material from different versions, which may be toggled in and out of visibility. Sequential undo (step-wise or by a slider) can be localized to chosen subsets of the current version, and any chosen subset can be restored as a unit to an earlier state.

CREATING, DIRECTING AND STEERING REGIONS OF INTENSITY OF WAVE PROPAGATION IN INHOMOGENEOUS MEDIA

Known time reversal methods consist of three steps which may be listed as (i) the recording of signals and (ii) the time reversing of the recorded signals, and (iii) the transmission of the time-reversed signals. The first and third steps of the above process are retained, but the second step is modified. The empirical signal is transformed to fit mathematical forms taught by the mathematics of singularity and catastrophe theory that ensure a structural stability to the waveforms that will be received, when the time reversed signals are transmitted again. This structural stability ensures robustness of the waveform and the predominant direction of the flux of energy of the waveform, and improves controllability of the location of the high magnitude regions of the energy flux despite limited knowledge of the exact properties of the medium. Applications to drug delivery in the brain, and geophysical applications are envisaged.

Method and system for prediction and management of material and information transport in an organism

A method and system for mapping anatomical connection and signaling across a multiplicity of channels, channel contents, and channel speed. In particular, the anatomical connection and signaling is mapped in relation to the human brain. Constructs a three-dimensional, dynamically structured, active model, for general or individual patterns. Uses for the present invention include: risk reduction in surgery to significant channels; planning cell insertion at sites where they can be expected to migrate to a less reachable target site; guiding searches for metastatic tumors; indirectly localizing brain structures; constructing models of disease in which multiple sites are involved in the deficit and any proposed repair; and building simulation of normal processes which require the sequential interaction of multiple sites.

SEARCH AND PRESENTATION ENGINE

A contents display and search system for navigating and searching and exploring a collection of objects includes a database of Attributes; each of the Attributes being associated with one or more objects, and a database of Kinds, each Kind being associated with one or more Attributes. When a user enters a search query including at least one Attribute, an object is tested to determine whether it has Attributes of the Kind corresponding to the Kind of the at least one specified Attribute before function testing is performed. Search and contents investigation results are presented in a hierarchical format in which Kinds and Attributes rather than objects, are displayed until the search or content type is further specified by selecting additional Kinds and/or Attributes such that the number of objects satisfying the specified search is below a threshold. User interaction modifies the hierarchical order of Kinds and Attributes in the display.

AN IMAGING DEVICE AND METHOD

An imaging system comprising an image capture apparatus, arranged to capture a stereoscopic image of an operator work site, in communication with a display system; the display system arranged to receive and display said stereoscopic image on a display screen to said operator; wherein said display system is arranged such that the display screen is placed intermediate the operator’s eyes and the work site.

 

 

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