| University of Kentucky Research Foundation (UKRF) Patent applications |
| Patent application number | Title | Published |
|---|
| 20120113229 | Rotate and Hold and Scan (RAHAS) Structured Light Illumination Pattern Encoding and Decoding - A unique computer-implemented process, system, and computer-readable storage medium having stored thereon, executable program code and instructions for 3-dimentional (3-D) image acquisition of a contoured surface-of-interest under observation by at least one camera and employing a preselected SLI pattern. The system includes a 3-D video sequence capture unit having (a) one or more image-capture devices for acquiring video image data as well as color texture data of a 3-D surface-of-interest, and (b) a projector device for illuminating the surface-of-interest with a preselected SLI pattern in, first, an initial Epipolar Alignment and ending in alignment with an Orthogonal (i.e., phase) direction, and then shifting the preselected SLI pattern (‘translation’). A follow-up ‘post-processing’ stage of the technique includes analysis and processing of the 3-D video sequence captured, including the steps of: identification of Epipolar Alignment from the 3-D video sequence, tracking ‘snakes’/stripes from the initial Epipolar Alignment through alignment with the Orthogonal direction, tracking ‘snakes’/stripes through pattern shifting/translation; correcting for relative motion (object motion); determining phase and interpolating adjacent frames to achieve uniform phase shift; employing conventional PMP phase processing to obtain wrapped phase; unwrapping phase at each pixel using snake identity; using conventional techniques to map phase to world coordinates. | 05-10-2012 |
| 20120092463 | Dual-frequency Phase Multiplexing (DFPM) and Period Coded Phase Measuring (PCPM) Pattern Strategies in 3-D Structured Light Systems, and Lookup Table (LUT) Based Data Processing - A computer-implemented process, system, and computer-readable storage medium having stored thereon, program code and instructions for 3-D triangulation-based image acquisition of a contoured surface/object-of-interest under observation by at least one camera, by projecting onto the surface-of-interest a multi-frequency pattern comprising a plurality of pixels representing at least a first and second superimposed sinusoid projected simultaneously, each of the sinusoids represented by the pixels having a unique temporal frequency and each of the pixels projected to satisfy | 04-19-2012 |
| 20100039562 | Source and output device-independent pixel compositor device adapted to incorporate the digital visual interface (DVI) - A pixel compositor device for routing an incoming stream of pixel data having been rendered elsewhere and bound for being projected. The device includes a plurality of digital signal inputs each adapted for receiving a plurality of pixel information from the incoming stream of pixel data. The digital signal inputs are in communication with at least one buffer for the pixel information once received by the device. A processing unit is included for image warping the pixel information by performing, on each of a respective of the pixel information: (i) a mapping relating to location of the respective pixel information, and (ii) a scaling function. The geometric mapping can be performed by applying an interpolation technique; and the scaling function can be any of a number of photometric correction functions (alpha-blending, color uniformity correction, image brightness or contrast adjustment, etc.). Once an image warping has been performed on the respective pixel information, it is routed out of the device through one of several digital signal outputs. A system for routing pixel data is disclosed having two or more of the pixel compositor devices in communication with an image rendering cluster of units (as the source of the incoming stream of pixel data) and a plurality of projectors; as is a method for routing an incoming stream of pixel data having been rendered elsewhere and bound for being projected. | 02-18-2010 |
