1 - 25 of 5
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 |
Colas-Baudelaire, Patrick | Digital picture processing and psychophysics: a study of brightness perception | A computer driven display system was used to study brightness contrast phenomena, in a project motivated by research in digital picture processing. The modeling approach was that of Stockham and Davidson: the visual system is modeled as the cascade of a linear system (eye optics) and a multiplicati... | Digital picture processing; Computer driven display system; Brightness contrast | 1974 |
| 2 |
 |
Miller, Neil Joseph | Removal of noise from a voice signal by synthesis | This report describes research into the problem of rectification of sound recordings made under adverse conditions and communicated and recorded with a great deal of noise. In the course of this research, a number of refinements have been made to the process of digital speech synthesis through new v... | Rectification; Homomorphic vocoder; Digital speech synthesis; Filtering device | 1974 |
| 3 |
 |
Cole, Edwin Randolph | The removal of unknown image blurs by homomorphic filtering | This report describes a homomorphic method for the estimation and removal of unknown image blurs, which are presumed to have been caused by a linear stationary system. Previous methods have required a more or less perfect a priori knowledge of the identity of the blur. the method described here requ... | Homomorphic filtering; Removal; Image blurs; Blurred image | 1974 |
| 4 |
 |
Boll, Steven F. | Selected methods for improving synthesis speech quality using linear predictive coding: system description, coefficient smoothing and streak | This report develops two generalizations of the standard Linear Predictive Coding (LPC) implementation of a narrow band speech compression system. The purpose of each method is to improve the speech quality that is available from a standard LPC system. | Linear Predictive Coding; LPC; Speech compression system; Pitch excited system | 1974 |
| 5 |
 |
Vickers, Donald Lee | Sorcerer's apprentice: head-mounted display and wand | Sorcerer's Apprentice is an interactive computer graphics system utilizing a head-mounted display and at three-dimensional wand. The system allows three-dimensional interaction with line drawings which are displayed in real time, that is about 20 frames per second. The display, worn like a pair of e... | Sorcerer's apprentice; Head-mounted display; Three-dimensional wand | 1974 |
1 - 25 of 5