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- Richard John Stevens, A. F. Lehar, F. H. Preston
- IEEE Transactions on Pattern Analysis and Machine…
- 1983
A fractal curve first discussed by Giuseppe Peano has useful statistical properties in image processing. The curve can act as a transform between a line and n-dimensional space retaining some of the… (More)
The thermal polymerization of bis-(p-toluene sulphonate) of 2,4-hexadiyne-1,6-diol has been studied by optical and Raman spectroscopy and X-ray diffraction. Single phase polymerization is revealed by… (More)
- F. H. Preston, A. F. Lehar, Richard John Stevens
- Optics & Photonics
- 1983
A novel method for analysing colour space is described with reference to compression, data ordering and display. This technique uses a precalculated curve first described by Giuseppe Peano to… (More)
The thermal polymerization of bis-(p-toluene sulphonate) of 2,4-hexadiyne-1,6-diol has been studied by optical and Raman spectroscopy and X-ray diffraction. Single phase polymerization is revealed by… (More)
Abstract The optical spectra of fully and partially polymerized crystals of bis ( p -toluene sulphonate) diacetylene have been measured between 4.2 and 330 K. The electronic absorption of the… (More)
- David Bloor, F. H. Preston
- 1977
The low-temperature spectra of partially and fully polymerized TSHD crystals are presented. The temperature dependence of the splitting of the main electronic transition is recorded. This splitting… (More)
- F. H. Preston
- 1989
Absorption and fluorescence spectra observed in defective partially polymerized crystals of bis (p-toluene sulphonate) diacetylene are described. Some spectral features may be attributed to… (More)
- David Bloor, F. H. Preston
- 1976
The solid state polymerization of bis(p-toluene sulphonate)diacetylene proceeds via a single-phase solid solution. The optical constants of the pleochroic partially polymerized crystals are… (More)
Abstract The fundamental and defect properties of a diacetylene polymer have been established by spectroscopic observations of samples ranging from large single crystals to amorphous powders. These… (More)