VLSI analogs of neuronal visual processing: a synthesis of form and function
VLSI analogs of neuronal visual processing: a synthesis of form and function
Three-dimensional computer vision: a geometric viewpoint
Three-dimensional computer vision: a geometric viewpoint
A Note on Some Phase Differencing Algorithms for Disparity Estimation
International Journal of Computer Vision
A Modular Multi-Chip Neuromorphic Architecture for Real-Time Visual Motion Processing
Analog Integrated Circuits and Signal Processing
Robot Vision
Fast block matching algorithm based on the winner-update strategy
IEEE Transactions on Image Processing
On the Advantages of Asynchronous Pixel Reading and Processing for High-Speed Motion Estimation
ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing
EURASIP Journal on Advances in Signal Processing - Special issue on signal processing advances in robots and autonomy
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This paper presents a complete Single-chip Stereo Imager (SSI), incorporating two 128 × 128 pixel current-mode imagers and current-mode analog computation circuitry on a single integrated circuit. A modified version of block matching is used to find the stereo disparity at each location in the field of view. At each location, the sum-of-absolute-difference is computed, in parallel, for each possible disparity. The SSI is capable of operation at 66.1 million checked disparities per second (41 fps) while drawing 15.2 mA from a 5 V supply, including imagers and computation circuits. The SSI occupies 4.23 × 4.23 mm2 of area in a 0.5 μm (λ = 0.35 μm) 5 V, 3-metal, 2-poly CMOS process.