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A REAL-TIME MPEG ENCODER USING A PROGRAMMABLE PROCESSOR

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 1994年第2期40卷 161-170页

作者： KIM, D YOUNG, J MILTON, S KIM, HJ KIM, Y Image Computing Systems Laboratory Department of Electrical Engineering University of Washington Seattle WA USA

This paper describes the design of a fully programmable multimedia system. The system, which utilizes a single multimedia video processor (MVP), is capable of performing real-time MPEG video and audio encoding at SIF resolution, 30 frames per second. Support is provided for a windows environment, including a scalable video window for viewing decoded video sequences or monitoring video compression in real time. The system is also well suited to perform image processing, 2-D and 3-D graphics, and many other video and audio processing and compression algorithms.

关键词： Video compression Multimedia systems Real time systems Transform coding image coding Decoding Video sequences Monitoring image processing Graphics

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MICROCOMPUTER-BASED SYSTEM FOR REAL-TIME OPTICAL IMAGING

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MEDICAL & BIOLOGICAL engineering & computing 1995年第5期33卷 728-732页

作者： ALLEMAN, A KIM, YM MILTON, S BUSH, J Image Computing Systems Laboratory Department of Electrical Engineering FT-10 University of Washington Seattle USA

Optical imaging is a technique of radiating light into biological tissue and generating images in order to observe and characterise its anatomy, condition, and function. In the present work, various research needs are examined to systematically develop a list of requirements for a powerful optical imaging research tool. Basing from the requirements, a new system that can match or exceed the capabilities of other existing systems in terms of speed, cost-effectiveness, flexibility and potential for growth is developed. As an enabling technology, this system and its future derivatives, can spur the rate of progress in optical imaging research and pave the way for future clinical use of the technology.

关键词： image CAPTURE AND ANALYSIS image PROCESSING MEDICAL DEVICES MICROCOMPUTER-BASED systems OPTICAL IMAGING TUMOR VISUALIZATION

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CIRCUITS FOR PSEUDOEXHAUSTIVE TEST PATTERN GENERATION

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IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND systems 1988年第10期7卷 1068-1080页

作者： WANG, LT MCCLUSKEY, EJ Center for Reliable Computing Computer Systems Laboratory Departments University of Stanford Stanford CA USA Center for Reliable Computing Computer Systems Laboratory Departments of Electrical Engineering and Computer Science University of Stanford Stanford CA USA

Implementation methods based on cyclic codes are presented for pseudoexhaustive testing of combinational logic networks with restricted output dependency. A modified linear-feedback shift register (LFSR) is used to generate exhaustive test patterns for every output of the circuit. All detectable, combinational faults (those that do not change a combinational circuit to a sequential circuit) in each cone of logic driving a single output are guaranteed to be detected. Examples indicate that LFSRs based on cyclic codes have lower hardware cost and shorter or comparable test lengths than other approaches. These test-pattern generators are well suited to applications where short testing time, low hardware overhead, and 100% single-stuck-at fault coverage are required.< >

关键词： Test pattern generators Circuit testing Logic testing electrical fault detection Fault detection Circuit faults Combinational circuits Sequential circuits Hardware Shift registers

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Volume rendering algorithms for three-dimensional ultrasound imaging: image quality and real-time performance analysis

Volume rendering algorithms for three-dimensional ultrasound...

引用

2009 IEEE International Ultrasonics Symposium, IUS 2009

作者： Managuli, Ravi Karadayi, Kerem Xu, Canxing Kim, Yongmin Image Computing Systems Laboratory Departments of Bioengineering and Electrical Engineering University of Washington Seattle WA 98195 United States Hitachi Medical Systems of America Twinsburg OH 44095 United States

ISBN: (纸本)9781424443895

One of the key additions to clinical ultrasound (US) systems during the last decade has been the incorporation of three-dimensional (3D) imaging as a native mode. These systems provide interactive volume rendering and display of 3D data. However, interactive volume rendering is challenging due to the large amount of data I/O and computation required. Many rendering techniques have been developed ranging from fast algorithms with lower image quality to sophisticated algorithms with better image quality, e.g., shear-warp, shear-image-order, pre-integration and direct ray casting. In this paper, we discuss pros and cons of each of these rendering algorithms in terms of algorithm complexity and image quality. We also discuss a new rendering algorithm that we have proposed: pre-integrated shear-image-order (PISIO). PISIO algorithm overcomes the image-quality limitations of other fast algorithms and provides a fine balance between computation and image quality. To demonstrate the interactive performance of these algorithms, we implemented them on a programmable multicore processor, i.e., IBM Cell processor. We present the results in this paper. ©2009 IEEE.

关键词： Volume rendering

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E-health and biocomputing

E-health and biocomputing

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IEEE Technology Time Machine Symposium on Technologies Beyond 2020, TTM 2011

作者： Kim, Yongmin Zahlmann, Gudrun Departments of Bioengineering and Electrical Engineering University of Washington Seattle WA United States University Image Computing Systems Laboratory United States Roche Pharmaceuticals Basel Switzerland Germany

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Compression for pre-scan-converted ultrasound sequences

Compression for pre-scan-converted ultrasound sequences

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Medical Imaging 1998: image Display

作者： Cabral Jr., James E. Linker, David T. Kim, Yongmin Image Computing Systems Laboratory Department of Electrical Engineering University of Washington Seattle WA 98195-2500 United States

In this paper, we describe an algorithm for compression of pre-scan-converted ultrasound tissue data. Between compression ratios of 8:1 and 120:1, we have found that there is a significant reduction in distortion using compression prior to scan conversion rather than after scan conversion. We have also found an additional improvement using wavelets, zerotree quantization and arithmetic coding rather than standard block DCT compression.

关键词： image compression

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Concurrent Error Detection and Testing for Large PLA's

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IEEE Journal of Solid-State Circuits 1982年第2期17卷 386-394页

作者： Khakbaz, Javad McCluskey, Edward J. Center for Reliable Computing Computer Systems Laboratory Departments of Electrical Engineering and Computer Science Stanford University Stanford CA 94305 United States

A system of checkers is designed for concurrent error detection in large PLA's. This system combines concurrent error detection with off-line functional testing of the PLA by using the same checker hardware for both purposes. The result is a significant saving in hardware cost. For a case example, the total hardware cost is estimated at about 37 percent of the original PLA area. The system is almost totally self-checking and, although the test patterns are not function-independent, their generation algorithm is simple. The total test time for the entire system is within the range of that of some recent PLA design schemes which were specifically aimed at simplifying off-line testing, but which have no provisions for concurrent error detection. Copyright © 1982 by the Institute of electrical and Electronics Engineers, Inc.

关键词： Programmable logic arrays Circuit testing System testing Hardware Costs Fault detection Test pattern generators Logic arrays Logic testing Digital systems

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PC sound and video compression boards for information infrastructure

PC sound and video compression boards for information infras...

引用

Photonics for Industrial Applications 1994

作者： Kim, Yongmin Young, Joseph Gove, Robert J. Image Computing Systems Laboratory Department of Electrical Engineering SeattleWA98195 United States Texas Instruments DallasTX75265 United States

The term multimedia implies the combination of many different forms of information including computer graphics, text, video and audio, along with data distribution mechanisms and storage systems that can provide such data with real time or interactive response [1]. Until recently, almost all systems were limited in their ability to manipulate video data. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Digital storage

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Requirements for PACS Workstations 2

Requirements for PACS Workstations

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2nd International Conference on image Management and Communication (IMAC) in Patient Care: New Technologies for Better Patient Care

作者： Kim, Y. Park, H.W. Haynor, D.R. Image Computing Systems Laboratory Department of Electrical Engineering FT-10 Korea Republic of Department of Radiology University of Washington SeattleWA98195 United States

ISBN: (纸本)0818621958

An electronic system for image (and other multimedia data) distribution, archiving and transmission represents the future of radiology and modern hospitals. Among many components comprised in the PACS (Picture Archiving and Communications System), workstations are the point of contact to the radiologists and referring physicians. Therefore, the level of success of PACS is highly dependent on the successful implementation of the workstation. This paper describes the requirements for a future clinically acceptable PACS, in particular, PACS diagnostic workstations, which will efficiently handle the large volume of images that are generated, add new functionality to improve productivity of physicians, technologists, and other health care providers, and provide enough flexibility to allow the system to grow as medical image technology grows. © 1991 IEEE. All rights reserved.

关键词： image enhancement

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Deep Learning in Medical image Registration: Magic or Mirage? 38

Deep Learning in Medical Image Registration: Magic or Mirage...

引用

38th Conference on Neural Information Processing systems, NeurIPS 2024

作者： Jena, Rohit Sethi, Deeksha Chaudhari, Pratik Gee, James C. Computer and Information Science United States Electrical and Systems Engineering United States Radiology United States Penn Image Computing and Science Laboratory United States

Classical optimization and learning-based methods are the two reigning paradigms in deformable image registration. While optimization-based methods boast generalizability across modalities and robust performance, learning-based methods promise peak performance, incorporating weak supervision and amortized optimization. However, the exact conditions for either paradigm to perform well over the other are shrouded and not explicitly outlined in the existing literature. In this paper, we make an explicit correspondence between the mutual information of the distribution of per-pixel intensity and labels, and the performance of classical registration methods. This strong correlation hints to the fact that architectural designs in learning-based methods is unlikely to affect this correlation, and therefore, the performance of learning-based methods. This hypothesis is thoroughly validated with state-of-the-art classical and learning-based methods. However, learning-based methods with weak supervision can perform high-fidelity intensity and label registration, which is not possible with classical methods. Next, we show that this high-fidelity feature learning does not translate to invariance to domain shift, and learning-based methods are sensitive to such changes in the data distribution. We reassess and recalibrate performance expectations from classical and DLIR methods under access to label supervision, training time, and its generalization capabilities under minor domain shifts. © 2024 Neural information processing systems foundation. All rights reserved.

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