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Related Experiment Videos

[A simple X-ray TV picture freezer].

Y Hu1

  • 1Huazhong University of Science and Technology.

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation
|February 14, 2003
PubMed
Summary

This paper introduces a simple X-ray TV picture freezer utilizing only 5 large-scale integrated circuit (LSIC) chips. It employs inexpensive, lower-speed Static Random-Access Memory (SRAM) for its video random-access memory (VRAM) block, achieving high-speed image capture.

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Area of Science:

  • Digital Imaging Technology
  • Integrated Circuit Design

Context:

  • Development of cost-effective solutions for medical imaging.
  • Need for efficient image freezing in diagnostic procedures.

Purpose:

  • To present a simplified design for an X-ray TV picture freezer.
  • To demonstrate the feasibility of using lower-speed SRAM in VRAM applications.
  • To achieve high sampling speeds with minimal components.

Summary:

  • A novel X-ray TV picture freezer is described, constructed using only five Large-Scale Integrated Circuit (LSIC) chips.
  • The Video Random-Access Memory (VRAM) block utilizes cost-effective, lower-speed Static Random-Access Memory (SRAM).
  • The memory operates in an alternate mode, supporting sampling speeds up to 10-12 Msps for a 512 x 512 pixel matrix.

Impact:

  • Enables the creation of more affordable digital imaging systems for X-ray applications.
  • Offers a practical approach to high-speed image acquisition using readily available components.
  • Potential for improved diagnostic capabilities through efficient real-time image freezing.

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