OBJECTIVES Although the spectrally degraded input provided by cochlear implants (CIs) is sufficient for speech perception in quiet, it poses problems for talker identification. The present study examined the ability of normally hearing (NH) children and child CI users to recognize cartoon voices while listening to spectrally degraded speech. DESIGN In Experiment 1, 5- to 6-year-old NH childre...

This paper reports human performance data from a series of psychophysical experiments investigating the limits of stimulus parameters relevant to distinguish a human face in a mug shot. In these experiments, we use a two-alternative forced-choice paradigm for response elicitation. We develop a benchmark that can be used to determine the performance of a machine vision system for human face dete...

Tropical forests are major contributors to the terrestrial global carbon pool, but this pool is being reduced via deforestation and forest degradation. Relatively few studies have assessed carbon storage in degraded tropical forests. We sampled 37,000 m(2) of intact rainforest, degraded rainforest and sclerophyll forest across the greater Wet Tropics bioregion of northeast Australia. We compare...

Degraded documents are frequently obtained in various situations. Examples of degraded document collections include historical document depositories, document obtained in legal and security investigations, and legal and medical archives. Degraded document images are hard to to read and are hard to analyze using computerized techniques. There is hence a need for systems that are capable of enhan...

This study assessed the effects of stimulus misidentification and memory processing errors on immediate memory span in 25 normal-hearing adults exposed to degraded auditory input simulating signals provided by a cochlear implant. The identification accuracy of degraded digits in isolation was measured before digit span testing. Forward and backward digit spans were shorter when digits were degr...

The ability to navigate without getting lost is an important aspect of quality of life. In 5 studies, we evaluated how spatial learning is affected by the increased demands of keeping oneself safe while walking with degraded vision (mobility monitoring). We proposed that safe low vision mobility requires attentional resources, providing competition for those needed to learn a new environment. I...

This paper presents the experimental results of investigation in a research on the phoneme restoration effects for the case of degraded speech communication. The first experiment examined the role of coarticulation in consonant restoration inside CV syllables. In the second experiment the phonological effects in initial consonant restoration around the words were demonstrated. The third experim...

The AURORA project (AUtomated Restoration of ORiginal Film Archives) is an E.U. funded ACTS project which began in Septem-ber of 1996. The partners include three broadcasters and holders of archives, The Insitut National L'Audiovisuel (INA), The British Broadcasting Corporation, Radiotelevisao Portuguesa, two industrial companies , Snell and Wilcox, Societe Generale de Teleinformatic, and the s...

Elevated water temperatures, a decrease in ocean pH, and an increasing prevalence of severe storms have lead to bleaching and death of the hard corals that underpin coral reef ecosystems. As coral cover declines, fish diversity and abundance declines. How degradation of coral reefs affects behavior of reef inhabitants is unknown. Here, we demonstrate that risk assessment behaviors of prey are s...