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Jae Kyun
Jae Kyun Ahn, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090196349 | METHOD FOR ESTIMATING CONTOUR OF VIDEO OBJECT - A method for estimating a boundary between a background and a user object in a video, in which the user object is segmented from the background is provided. The initial object contour is estimated in a first video frame for object segmentation, and color probability density functions are estimated for the user object and the background segmented from the first video frame. An edge strip with a predetermined width is generated in a current frame based on an object contour of a previous frame, and a coherence probability density function of the edge strip is estimated. The user object is segmented in the current frame by energy minimization. | 08-06-2009 |
| 20090196507 | Method and apparatus for estimating object contour in a moving picture - A method and apparatus for estimating the contour of a user object in a moving picture during video communications so that a personal background image is not provided during video communications. Information about center coordinates as well as a size of a face of the user object is extracted from a moving picture frame. Edges are extracted from the moving picture frame, and a boundary of a head of the user object is estimated using a semicircle. The boundaries of left and right shoulders and left and right arms of the user object are estimated using second-order function graphs that overlap a largest portion of the edges. An entire contour of the user object is estimated according to the boundaries of the head, the left and right shoulders, and the left and right arms of the user object. | 08-06-2009 |
| 20110091118 | APPARATUS AND METHOD FOR CODING A THREE DIMENSIONAL MESH - Disclosed is a three-dimensional (3D) mesh compression apparatus and method. The 3D mesh compression apparatus may generate a base mesh through a mesh simplification, may separately compress the base mesh and peaks eliminated by the simplification, may construct a covariance matrix based on a topological distance between the eliminated peaks, and may compress 3D mesh data based on the covariance matrix. | 04-21-2011 |
Jae Kyun Jung, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090207783 | COMMUNICATION METHOD AND APPARATUS USING VIRTUAL SINK NODE IN WIRELESS SENSOR NETWORK - A communication method and apparatus using a virtual sink node in a wireless sensor network, in which location information about a destination node is acquired by a source node. If the location of the destination node is out of a transmission range of the source node, data including the location information about the destination node are transmitted from the source node to one of nodes adjacent to the source node, where the one node is typically closest to the destination node. The data are transmitted from the one node to another one of nodes adjacent to the one node, where another node is closest to the destination node, until the destination node is located within a transmission range of the one node. If the destination node is located within the transmission range of the one node, the data are transmitted from the one node to the destination node. | 08-20-2009 |
Jae Kyun Kim, Daegu KR
| Patent application number | Description | Published |
|---|---|---|
| 20110000436 | FOAM FILTER FOR AQUARIUM HAVING FUNCTION OF PURIFYING AIR AND WATER - A foam filter for an aquarium having a function for purifying water and air which is capable of facilitating a replacement and maintenance of components due to an abnormality of a filtering device and an execution of a washing operation (including water refill) of the aquarium by making it convenient to be manufactured and installed depending on a simplified construction of a product which can be selectively disassembled or assembled, and also capable of satisfying user's visual curiosity by improving an externality of the aquarium, wherein the foam filter for the aquarium having the function for purifying water and air can be achieved by being provided with an installation case provided with a pair of container installation holes which are symmetrical to each other at left and right lateral surfaces based upon a filter installation hole, and having a fluid inlet which is formed through the filter installation hole at central front portion of a bottom surface of the installation case, a multi-layer filter slidingly received in the filter installation hole, a filtering agent container slidingly received in the pair of container installation holes, a filtering case connected to a front portion of the fluid inlet to thus be mounted thereto, and a water screen generator | 01-06-2011 |