Yongmin Kim

Bio: Yongmin Kim is an academic researcher from University of Washington. The author has contributed to research in topics: Data compression & Image compression. The author has an hindex of 7, co-authored 14 publications receiving 257 citations.

Multimedia systems for telemedicine and their communications requirements

Abstract: Telemedicine is much more than just teleconferencing. ISDN could be used in some low-end applications, but many telemedicine applications will require the higher bandwidth and guaranteed qualities of service supported by ATM. We discuss the design of multimedia systems for telemedicine. First, various applications of telemedicine are presented, and their multimedia and communications requirements are discussed. A telemedicine prototype is then presented, each of its components discussed, and a potential future telemedicine system is shown.

Multi-ported memory having pipelined data banks

Abstract: Multi-ported pipelined memory is located on a processor die serving as an addressable on-chip memory for efficiently processing streaming data. The memory sustains multiple wide memory accesses per cycle, clocks synchronously with the rest of the processor, and stores a significant portion of an image. Such memory bypasses the register file directly providing data to the processor's functional units. The memory includes multiple memory banks which permit multiple memory accesses per cycle. The memory banks are connected in pipelined fashion to pipeline registers placed at regular intervals on a global bus. The memory sustains multiple transactions per cycle, at a larger memory density than that of a multi-ported static memory, such as a register file.

Interactive segmentation of brain tumors in MR images using 3D region growing

Abstract: We have developed an interactive software package designed to assist the radiologist in tissue segmentation for volumetric determination. Our algorithms treat a group of stacked images as a single volume, extending the concepts of traditional region growing and thresholding into three dimensions. Preliminary results from phantom studies indicate that, relative to conventional manual tracking techniques, the benefits of 3D region growing and thresholding include reduced time expenditure and improved determination of contiguous regions. However, heterogeneous signals and poor contrast may limit the usefulness of the automated segmentation algorithm alone. Therefore, several manual editing tools are included. When the automated segmentation tools are coupled with simple editing tools, accuracy of tissue segmentation in the phantom is equal or better than manual tracing alone with significant time savings.

MediaStation 5000: a multimedia workstation for telemedicine

Abstract: Building on the success of the MediaStation 5000 (MS5000) multimedia system which was developed in our laboratory in 1994, we have developed a prototype telemedicine workstation which is programmable and supports high-bandwidth telecommunications links to connect together many medical treatment facilities. The system can support various telemedicine and consultation functions to collaboratively transfer, manipulate, and view radiological images, image sequences, audio, and video. The requirements for a telemedicine workstation include high performance, flexibility, and upgradability. The unique components of our workstation include an advanced parallel processor, highly integrated multimedia support circuitry, high- speed network interface, and a graphical user interface. Each of these is a key ingredient to a successful telemedicine system.

Selectively controllable heads-up display system

Abstract: Systems and methods are disclosed for displaying data on a head's-up display screen. Multiple forms of data can be selectively displayed on a semi-transparent screen mounted in the user's normal field of view. The screen can either be mounted on the user's head, or mounted on a moveable implement and positioned in front of the user. A user interface is displayed on the screen including a moveable cursor and a menu of computer control icons. An eye-tracking system is mounted proximate the user and is employed to control movement of the cursor. By moving and focusing his or her eyes on a specific icon, the user controls the cursor to move to select the icon. When an icon is selected, a command computer is controlled to acquire and display data on the screen. The data is typically superimposed over the user's normal field of view.

Collaborative diagnostic systems

Abstract: The systems described herein include tools for computer-assisted evaluation of objective characteristics of pathologies A diagnostic system arranged according to the teachings herein provides computer support for those tasks well suited to objective analysis, along with human decision making where substantial discretion is involved Collaborative diagnosis may be provided through shared access to data and shared control over a diagnostic tool, such as a telemicroscope, and messaging service for clinicians who may be at remote locations These aspects of the system, when working in cooperation with one another, may achieve improved diagnostic accuracy or early detection for pathologies such as lymphoma