Analog Integrated Circuits and Signal Processing
A Visibility Matching Tone Reproduction Operator for High Dynamic Range Scenes
IEEE Transactions on Visualization and Computer Graphics
Real-Time Tone Mapping for High-Resolution HDR Images
CW '08 Proceedings of the 2008 International Conference on Cyberworlds
VIS2SOUND on Reconfigurable Hardware
RECONFIG '08 Proceedings of the 2008 International Conference on Reconfigurable Computing and FPGAs
Visual system based on artificial retina for motion detection
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
A histogram modification framework and its application for image contrast enhancement
IEEE Transactions on Image Processing
GPU implementation of a bio-inspired vision model
IWANN'11 Proceedings of the 11th international conference on Artificial neural networks conference on Advances in computational intelligence - Volume Part I
Contextual and Variational Contrast Enhancement
IEEE Transactions on Image Processing
Perceptually based tone mapping of high dynamic range image streams
EGSR'05 Proceedings of the Sixteenth Eurographics conference on Rendering Techniques
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This paper describes a new contrast enhancement technique inspired in the way the human retina works to increase the degree of detail, mitigate glares and enhance the visibility of the scene in both bright and dim lighting conditions. The proposed operator and its real-time implementation are specially aimed as an aid system for visually impaired people who struggle to manage themselves in environments where illumination is not uniform or changes rapidly. This aid device processes in real-time, with minimum latency, the input of a camera and shows the enhanced image on a Head Mounted Display (HMD). To meet all these requirements we have implemented the whole model in a light-weight netbook which integrates a GPU NVIDIA ION2 and performs at a maximum rate of 27 frames per second when working with VGA resolution images (640x480RGB images).