Chain coding representation of voxel-based objects with enclosing, edging and intersecting trees

2016 ◽  
Vol 20 (3) ◽  
pp. 825-844 ◽  
Author(s):  
Luis A. Martínez ◽  
Ernesto Bribiesca ◽  
Adolfo Guzmán
Keyword(s):  
Chain Coding

Coding efficiency of multiring differential chain coding

1992 ◽  
Vol 139 (2) ◽  
pp. 224 ◽  
Author(s):  
A.B. Johannessen ◽  
R. Prasad ◽  
N.B.J. Weyland ◽  
J.H. Bons
Keyword(s):  
Coding Efficiency ◽  
Chain Coding

scholarly journals Automatic Detection of Pulmonary Nodules using Three-dimensional Chain Coding and Optimized Random Forest

2020 ◽  
Vol 10 (7) ◽  
pp. 2346 ◽  
Author(s):  
May Phu Paing ◽  
Kazuhiko Hamamoto ◽  
Supan Tungjitkusolmun ◽  
Sarinporn Visitsattapongse ◽  
Chuchart Pintavirooj
Keyword(s):  
Random Forest ◽  
Three Dimensional ◽  
Pulmonary Nodules ◽  
Region Growing ◽  
Favorable Result ◽  
Dimensional Chain ◽  
Chain Code ◽  
Seeded Region Growing ◽  
Chain Coding ◽  
Diagnosis Of Lung Cancer

The detection of pulmonary nodules on computed tomography scans provides a clue for the early diagnosis of lung cancer. Manual detection mandates a heavy radiological workload as it identifies nodules slice-by-slice. This paper presents a fully automated nodule detection with three significant contributions. First, an automated seeded region growing is designed to segment the lung regions from the tomography scans. Second, a three-dimensional chain code algorithm is implemented to refine the border of the segmented lungs. Lastly, nodules inside the lungs are detected using an optimized random forest classifier. The experiments for our proposed detection are conducted using 888 scans from a public dataset, and achieves a favorable result of 93.11% accuracy, 94.86% sensitivity, and 91.37% specificity, with only 0.0863 false positives per exam.

scholarly journals A New Algorithm of Shape Boundaries Based on Chain Coding

2017 ◽  
Vol 12 ◽  
pp. 03005 ◽  
Author(s):  
Xin Zhao ◽  
Jun Zheng ◽  
Yan Liu
Keyword(s):  
Chain Coding

New method for chain coding based on convolution

1991 ◽  
Author(s):  
Kent P. Qing ◽  
Robert W. Means
Keyword(s):  
New Method ◽  
Chain Coding

scholarly journals Cloning, sequence determination, and expression in transfected cells of the coding sequence for the tox 176 attenuated diphtheria toxin A chain.

1987 ◽  
Vol 7 (4) ◽  
pp. 1576-1579 ◽  
Author(s):  
F Maxwell ◽  
I H Maxwell ◽  
L M Glode
Keyword(s):  
Diphtheria Toxin ◽  
Predicted Amino Acid Sequence ◽  
Specific Cell ◽  
Wild Type ◽  
Transient Expression Assay ◽  
Toxin A ◽  
Coding Sequence ◽  
Chain Coding ◽  
Diphtheria Toxin A ◽  
A Chain

DNA including the coding sequence for the A chain of the mutant diphtheria toxin tox 176 was cloned. The cloned mature A-chain coding sequence showed a G-to-A transition at nucleotide 383 as the only difference from the wild-type sequence. This resulted in replacement of the glycine at position 128 by aspartic acid in the predicted amino acid sequence. A eucaryotic cell expression plasmid, pTH1-176, was constructed in which the tox 176 A-chain coding sequence was attached to a truncated metallothionein promoter. The toxicity of this construct, compared with that of the corresponding wild-type diphtheria toxin A-chain plasmid, pTH1, was assessed after transfection into the human 293 cell line by an indirect transient expression assay (I. H. Maxwell, F. Maxwell, and L. M. Glode, Cancer Res. 46:4660-4664, 1986). For the same effect, 15- to 30-fold more pTH1-176 than pTH1 was required, a result consistent with previous in vitro estimates of the diminished activity of the tox 176 A chain. Controlled expression of the cloned tox 176 A-chain coding sequence may provide a means of eliminating specific cell populations in an organism, for which purpose the wild-type diphtheria toxin A chain might prove too toxic.

scholarly journals Adaptive fixed-length differential chain coding for transmission of line graphics

1995 ◽  
Vol 31 (11) ◽  
pp. 862-863 ◽  
Author(s):  
H. Yuen ◽  
L. Hanzo
Keyword(s):  
Fixed Length ◽  
Chain Coding
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