1,721,108 research outputs found
Summaries
No full textLowe Richard. Summaries. In: Aster, recherches en didactique des sciences expérimentales, n°21, 1995. Enseignement de la géologie. pp. 201-203
Summaries
No full textDyer June, Lowe Richard. Summaries. In: Aster, n°22, 1996. Images et activités scientifiques. pp. 233-236
Content-driven superpixels and their applications
No full textThis thesis develops a new superpixel algorithm that displays excellent visual reconstruction of the original image. It achieves high stability across multiple random initialisations, achieved by producing superpixels directly corresponding to local image complexity. This is achieved by growing superpixels and dividing them on image variation. The existing analysis was not sufficient to take these properties into account so new measures of oversegmentation provide new insight into the optimum superpixel representation. As a consequence of the algorithm, it was discovered that CDS has properties that have eluded previous attempts, such as initialisation invariance and stability. The completely unsupervised nature of CDS makes them highly suitable for tasks such as application to a database containing images of unknown complexity. These new superpixel properties have allowed new applications for superpixel pre-processing to be produced. These are image segmentation; image compression; scene classification; and focus detection. In addition, a new method of objectively analysing regions of focus has been developed using Light-Field photography
Summaries
No full textLowe Richard, Vérin Anne. Summaries. In: Aster, recherches en didactique des sciences expérimentales, n°20, 1995. Représentations et obstacles en géologie. pp. 193-195
Summaries
No full textPhillips Céline, Lowe Richard. Summaries. In: Aster, recherches en didactique des sciences expérimentales, n°26, 1998. L'enseignement scientifique vu par les enseignants. pp. 237-240
Summaries
No full textLowe Richard, Verillon Pierre, Vérin Anne. Summaries. In: Aster, recherches en didactique des sciences expérimentales, n°25, 1997. Enseignants et élèves face aux obstacles. pp. 227-230
Summaries
No full textLowe Richard, Verillon Pierre, Vérin Anne. Summaries. In: Aster, recherches en didactique des sciences expérimentales, n°24, 1997. Obstacles : travail didactique. pp. 231-234
Using accelerometers to analyse slip for prosthetic application
No full textA slip sensor, using accelerometers, has been investigated for use in prosthetic design. The basis of this report is the characterization of this sensor including how it performs in re-gripping a falling object. The possibility of using three-axis vibration control is investigated and the limitations of this method are reported. A controller was produced to determine how reliable the sensor is when using both open- and closed-loop control methods. The conclusion is that the sensor is robust, and in addition to basic vibration, it is possible to use the sensor to calculate a reliable value for the distance of slip. Using statistical measures, a minimum grip force is given for successful re-grip without knowledge of the tangential friction forces
A NEW APPROACH TO AUDIOVISUAL DIGITAL ARCHIVING
No full textThis paper presents work in the UK AVATAR-m project on how to specify and govern federated archive services that involve both local and remote storage
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