• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 47
  • 34
  • 9
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 85
  • 85
  • 85
  • 85
  • 34
  • 30
  • 30
  • 30
  • 30
  • 26
  • 12
  • 12
  • 11
  • 10
  • 10
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Morphometrical methodology in quantification of biological tissue components /

Blomgren, Bo, January 2004 (has links)
Diss. (sammanfattning) Uppsala : Univ., 2004. / Härtill 5 uppsatser.
2

Segmentation methods for medical image analysis : blood vessels, multi-scale filtering and level set methods /

Läthén, Gunnar, January 2010 (has links)
Licentiatavhandling (sammanfattning) Linköping : Linköpings universitet, 2010. / Härtill 5 uppsatser.
3

Two-and three dimensional finite element analyses of the intact and reconstructed hemipelvis

Austin, Gregory Alan 19 April 2017 (has links)
No description available.
4

Development of histologic color image analysis system.

January 1994 (has links)
by Chung-fai Kwok. / Thesis (M.Sc.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaves 65). / Contents --- p.i / Table of Figures --- p.iii / Abstract --- p.v / Acknowledgment --- p.vii / Introduction --- p.viii / Chapter 1. --- Overview : Medical image network system --- p.1 / Chapter 1.1 --- MAGNET --- p.1 / Chapter 1.2 --- Medical image --- p.2 / Chapter 2. --- System configuration --- p.4 / Chapter 2.1 --- Hardware setting --- p.4 / Chapter 2.2 --- Software functions design --- p.5 / Chapter 3. --- Color handling --- p.7 / Chapter 3.1 --- Color --- p.7 / Chapter 3.2 --- Colormap and color display --- p.9 / Chapter 3.3 --- Static and dynamic color mapping --- p.10 / Chapter 4. --- Color image processing --- p.11 / Chapter 4.1 --- Color image quantization --- p.11 / Chapter 4.1.1 --- Pre-quantization --- p.13 / Chapter 4.1.2 --- Median cut Algorithm --- p.15 / Chapter 4.1.3 --- Remapping colors --- p.16 / Chapter 4.1.4 --- Hashing --- p.17 / Chapter 4.1.5 --- Distortion Measures --- p.21 / Chapter 4.1.6 --- Experiment results and Discussion --- p.22 / Chapter 4.2 --- Intensity mapping --- p.30 / Chapter 4.2.1 --- Graylevel image contrast enhancement and reduction --- p.30 / Chapter 4.2.2 --- Graylevel image brightness increment and reduction --- p.36 / Chapter 4.2.3 --- Contrast enhancement and reduction on color components --- p.40 / Chapter 4.2.4 --- Brightness increment and reduction on color components --- p.41 / Chapter 4.3 --- Pseudocoloring --- p.45 / Chapter 5. --- Color image analysis --- p.47 / Chapter 5.1 --- Region Measures --- p.47 / Chapter 5.1.1 --- Region measures function design --- p.47 / Chapter 5.1.2 --- Region growing mechanism --- p.48 / Chapter 5.1.3 --- Region smoothing --- p.49 / Chapter 5.2 --- Distance measures --- p.53 / Chapter 5.3 --- Statistical analysis --- p.53 / Chapter 6. --- Summary and future work --- p.57 / Appendix : User interfaces and functions --- p.58 / Bibliography --- p.65
5

Three dimensional medical image visualization.

January 1994 (has links)
by Tin Pong. / Thesis (M.Sc.)--Chinese University of Hong Kong, 1994. / Includes bibliographical references (leaf 73). / Abstract --- p.2 / Acknowledgement --- p.4 / Table of Contents --- p.5 / Chapter I. --- Introduction --- p.8 / Chapter II. --- Segmentation Tools --- p.11 / Chapter 2.1. --- Segmentation of Object --- p.11 / Chapter 2.1.1. --- Segmentation algorithm --- p.11 / Chapter 2.1.2. --- Region growing algorithm --- p.16 / Chapter 2.2. --- Noise Reduction --- p.19 / Chapter 2.2.1. --- Median filtering --- p.19 / Chapter 2.2.2 --- Mean filtering --- p.20 / Chapter 2.3. --- Other functions --- p.21 / Chapter 2.3.1. --- Contrast enhancement and reduction --- p.21 / Chapter 2.3.2. --- Brightness increment and reduction --- p.22 / Chapter III. --- 3D Visualization Tools --- p.23 / Chapter 3.1. --- Interpolation --- p.23 / Chapter 3.1.1. --- Estimate distance between slices --- p.23 / Chapter 3.1.2. --- Trilinear Interpolation --- p.24 / Chapter 3.2. --- Projection --- p.26 / Chapter 3.2.1. --- Parallel projection --- p.26 / Chapter 3.2.2. --- Z-Buffers --- p.27 / Chapter 3.3. --- Rotation of 3D image --- p.29 / Chapter 3.4. --- Shading --- p.30 / Chapter IV. --- Description of the software developed --- p.32 / Chapter 4.1. --- Programming environment --- p.32 / Chapter 4.2. --- Software developed --- p.32 / Chapter 4.3. --- 2D object segmentation panel --- p.35 / Chapter 4.4. --- 3D object segmentation panel --- p.45 / Chapter V. --- Results and analysis --- p.56 / Chapter 5.1. --- Results of segmentation of object --- p.56 / Chapter 5.2. --- Results of 3D visualization tools --- p.64 / Chapter VI. --- Future Development --- p.70 / Chapter VII. --- Conclusion --- p.72 / References --- p.73
6

Three-dimensional medical ultrasound image reconstruction using noise reduction and data compression. / CUHK electronic theses & dissertations collection

January 1998 (has links)
by Xiang Shao hua. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1998. / Includes bibliographical references (p. 233-[248]). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.
7

Automated screening of ultrasound images for carcinoma of liver.

January 1996 (has links)
by Wun Yuk Tsan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references (leaves 121-129). / ABSTRACT --- p.i / ACKNOWLEDGMENT --- p.iii / TABLE OF CONTENTS --- p.iv / TABLE OF FIGURES AND TABLES --- p.vi / Chapter CHAPTER 1 --- INTRODUCTION --- p.1 / Chapter 1.1 --- Ultrasonography in Clinical Medicine --- p.1 / Chapter 1.1.1 --- Ultrasonic features of the liver --- p.1 / Chapter 1.1.2 --- Image artifacts in liver ultrasonograms --- p.4 / Chapter 1.1.3 --- Characteristics of liver ultrasonic image --- p.6 / Chapter 1.2 --- Liver Carcinoma in Hong Kong --- p.9 / Chapter 1.2.1 --- Morphological features of liver carcinoma --- p.10 / Chapter 1.2.2 --- Ultrasonographic features of liver carcinoma --- p.11 / Chapter 1.3 --- Ultrasonography and Computer --- p.12 / Chapter 1.4 --- Objectives of Thesis --- p.14 / Chapter 1.4.1 --- Hypothesis of the thesis --- p.15 / Chapter 1.4.2 --- Methods of experiment --- p.15 / Chapter 1.5 --- Organization of this Thesis --- p.17 / Chapter CHAPTER 2: --- COMPUTERIZED MEDICAL IMAGING: A REVIEW --- p.19 / Chapter 2.1 --- Computer Vision and Medical Imaging --- p.19 / Chapter 2.1.1 --- Artificial intelligence --- p.21 / Chapter 2.1.2 --- Mathematics models --- p.23 / Chapter 2.2 --- Computer Vision and Ultrasonic Images of Liver --- p.25 / Chapter 2.2.1 --- Studies on radiofrequency (RF) --- p.25 / Chapter 2.2.2 --- Studies on amplitude derived data --- p.26 / Chapter 2.3 --- Implications of Previous Work --- p.28 / Chapter 2.4 --- Limitations of Previous Work --- p.30 / Chapter CHAPTER 3: --- STATISTICAL TEXTURE --- p.32 / Chapter 3.1 --- Statistical Textural Analysis --- p.32 / Chapter 3.2 --- Statistical Texture for Segmentation --- p.34 / Chapter 3.3 --- Statistical Features Studied in This Research --- p.35 / Chapter 3.3.1 --- First-order statistics --- p.35 / Chapter 3.3.2 --- Second-order statistics --- p.36 / Chapter 3.3.3 --- Higher-order statistics --- p.41 / Chapter 3.4 --- Novel Statistical Texture Features --- p.42 / Chapter 3.5 --- Stable Statistical Textures: A New Hypothesis --- p.43 / Chapter 3.6 --- Centroids of Statistical Texture Descriptors --- p.45 / Chapter CHAPTER 4: --- NORMAL LIVER IMAGES --- p.48 / Chapter 4.1 --- Further Description of Normal Liver USG --- p.48 / Chapter 4.1.1. --- Equalized images --- p.50 / Chapter 4.2 --- Stable Statistical Descriptors in Normal Liver Images --- p.50 / Chapter 4.3 --- Clustering Algorithm --- p.53 / Chapter 4.3.1. --- Accuracy of the algorithm --- p.58 / Chapter 4.3.2 --- The algorithm and ultrasound artifacts --- p.60 / Chapter 4.3.3 --- Fuzzy algorithm for clustering --- p.62 / Chapter 4.4 --- Evaluation of the Algorithm --- p.63 / Chapter CHAPTER 5: --- IMAGES OF LIVER CARCINOMA --- p.64 / Chapter 5.1 --- Characteristics of Liver Carcinoma --- p.64 / Chapter 5.2 --- Algorithm for Tumour Detection --- p.65 / Chapter 5.2.1 --- Which statistical descriptors to use? --- p.66 / Chapter 5.2.2 --- How to isolate the capsules subimages? --- p.68 / Chapter 5.2.3 --- How to estimate the position of the tumour cells in the descriptor curve? --- p.72 / Chapter 5.2.4 --- Refinements of the algorithm --- p.73 / Chapter 5.3 --- Results of the Algorithm --- p.75 / Chapter 5.4 --- Further Examples --- p.80 / Chapter 5.5 --- Evaluation of the Algorithm --- p.87 / Chapter 5.5.1 --- Time required by the algorithm --- p.87 / Chapter 5.5.2 --- Sensitivity --- p.88 / Chapter 5.5.3 --- False positives and negatives --- p.88 / Chapter CHAPTER 6: --- REVIEW AND PROSPECTS --- p.90 / Chapter 6.1 --- Conclusions --- p.91 / Chapter 6.1.1. --- The objectives --- p.91 / Chapter 6.1.2 --- Hypotheses --- p.91 / Chapter 6.1.3. --- Statistical features --- p.92 / Chapter 6.2 --- Evaluation --- p.93 / Chapter 6.2.1 --- Noises --- p.93 / Chapter 6.2.2 --- Statistical features --- p.94 / Chapter 6.2.3 --- Methodology --- p.96 / Chapter 6.3 --- Future Work and Research --- p.98 / Chapter 6.3.1 --- Implementation and further development of the system --- p.98 / Chapter 6.3.2 --- Future research of the system --- p.99 / Chapter 6.3.3 --- Fuzzy algorithm --- p.100 / Chapter 6.3.4 --- Further work on statistical texture features --- p.100 / Chapter 6.3.5 --- The commercial potential of the system --- p.100 / Chapter 6.4 --- Final Conclusion --- p.101 / APPENDICES --- p.102 / Appendix A: Program Listings --- p.102 / Listing 1: pcx.c --- p.103 / Listing 2: feature.c --- p.108 / "Listing 3: detect, c" --- p.108 / Listing 4: centroid. c --- p.117 / AppendexB: Further Readings --- p.120 / Chapter I. --- Textbooks on Computer Vision or Images --- p.120 / Chapter II. --- Reference Books on Processing Algorithms in C Language --- p.120 / REFERENCES --- p.121
8

Imaging studies of cell physiology with particular reference to Na,K-ATPase function /

Andersson, Ronnie M., January 2003 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst., 2003. / Härtill 6 uppsatser.
9

The reliability of three-dimensional computer-generated linear and angular cephalometric measurements

Kusnoto, Budi. January 1998 (has links)
Thesis (M.S. in oral sciences)--University of Illinois at Chicago, 1998. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
10

An assessment of facial profile preference of surgical patients using video imaging

Arpino, Vincent J. January 1996 (has links)
Thesis (M.S.)--University of Illinois at Chicago, 1996. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Page generated in 0.1719 seconds