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CHI
2011
ACM
14 years 10 months ago
Evaluating video visualizations of human behavior
Previously, we presented Viz-A-Vis, a VIsualiZation of Activity through computer VISion [17]. Viz-A-Vis visualizes behavior as aggregate motion over observation space. In this pap...
Mario Romero, Alice Vialard, John Peponis, John T....
CHI
2004
ACM
16 years 6 months ago
The participatory design of a sound and image enhanced daily planner for people with aphasia
Aphasia is a cognitive disorder that impairs speech and language. From interviews with aphasic individuals, their caregivers, and speech-language pathologists, the need was identi...
Karyn Moffatt, Joanna McGrenere, Barbara Purves, M...
DCC
2009
IEEE
16 years 7 months ago
Multi Level Multiple Descriptions
Multiple Description (MD) source coding is a method to overcome unexpected information loss in a diversity system such as the internet, or a wireless network. While classic MD cod...
Tal A. Beery, Ram Zamir
DCC
2009
IEEE
16 years 7 months ago
The Posterior Matching Feedback Scheme for Joint Source-Channel Coding with Bandwidth Expansion
When transmitting a Gaussian source over an AWGN channel with an input power constraint and a quadratic distortion measure, it is well known that optimal performance can be obtain...
Ofer Shayevitz, Meir Feder
DCC
2009
IEEE
16 years 7 months ago
H.264/MPEG-4 AVC Encoder Parameter Selection Algorithms for Complexity Distortion Tradeoff
The H.264 encoder has input parameters that determine the bit rate and distortion of the compressed video and the encoding complexity. A set of encoder parameters is referred to a...
Rahul Vanam, Eve A. Riskin, Richard E. Ladner