Self-timed VLSI circuits can avoid problems of clock distribution and achieve 500 MHz or higher-speed data processing. The RELY circuit reliability simulator is used to investigate the comparative reliability of two-p...
详细信息
Self-timed VLSI circuits can avoid problems of clock distribution and achieve 500 MHz or higher-speed data processing. The RELY circuit reliability simulator is used to investigate the comparative reliability of two-phase, single-phase, and self-timed circuits. Reliability simulation techniques and analysis results on submicron CMOS circuits are presented.
作者:
Okada, HirotoSheu, Bing J.Chang, Chia-Fen
Signal and Image Processing Institute Center for Neural Engineering University of Southern California Los AngelesCA90089-0271 United States
This paper describes a mixed-signal VLSI design for early vision processing, which includes an analog edge detection chip with embedded array photosensors and a digital multi-processor chip. The system architecture ov...
详细信息
The architecture and circuit design of digital processors for general-purpose neurocomputing are presented. The processing element is suitable for a tightly coupled multiprocessor chip connected in 1-dimensional ring ...
详细信息
The architecture and circuit design of digital processors for general-purpose neurocomputing are presented. The processing element is suitable for a tightly coupled multiprocessor chip connected in one-dimensional rin...
详细信息
The architecture and circuit design of digital processors for general-purpose neurocomputing are presented. The processing element is suitable for a tightly coupled multiprocessor chip connected in one-dimensional ring or two-dimensional mesh fashion. An off-chip microprogrammed array controller broadcasts instructions to all processing elements. Mappings of the feedforward and feedback operations in the backpropagation neural network into the mesh-connected processing element matrix are described. Detailed design of the circuit blocks is also described. More than 128 processing elements can be implemented in a super chip by use of advanced 0.5- mu m CMOS technology to achieve 2.56 billion operations per second.< >
A VLSI design of a competitive neural network for video motion detection,using mixed-signal mode approach,is *** detection is performed massively and parallelly by a two-dimensional multiprocessor array which is consi...
详细信息
A VLSI design of a competitive neural network for video motion detection,using mixed-signal mode approach,is *** detection is performed massively and parallelly by a two-dimensional multiprocessor array which is consisted of an analog *** the array,local data transfer between the neuroprocessors is performed by using an analog point-to-point interconnection scheme,while global data communication between a host computer and the neuroprocessors is achieved in a digital common *** results of the analog circuit blocks and system-level analysis are also presented.A 1.0×1.9-cm chip in a 0.8-μm CMOS technology can accommodate 64 velocity-selective *** chip can achieve 104 Giga connections per second.
A mixed-signal VLSI design for early vision processing, which includes an analog edge detection chip with embedded array photosensors and a digital multiprocessor chip, is described. The system architecture overview s...
详细信息
A mixed-signal VLSI design for early vision processing, which includes an analog edge detection chip with embedded array photosensors and a digital multiprocessor chip, is described. The system architecture overview shows that the combination of the analog chip and the digital processors can perform highly efficient processing in neural-based vision processing. The analog edge detection chip consisting of 258*258 photosensor cells can be implemented in an area of 13.5 mm*15.5 mm using the MOSIS 0.8- mu m CMOS technology. The digital multiprocessor chip, which includes 64 processing elements, can be implemented in a 15.0-mm*18.0-mm chip using an industrial-scale 0.5- mu m CMOS technology. A system implementation for fingerprint verification is presented as an example of possible applications.< >
Automatic image registration is important for many multiframe-based image analysis applications. In this paper, a computational vision approach is presented for the estimation of 2-D translation, rotation, and scale f...
详细信息
Automatic image registration is important for many multiframe-based image analysis applications. In this paper, a computational vision approach is presented for the estimation of 2-D translation, rotation, and scale from two partially overlapping images. The approach has the following features: (1) an illuminant direction estimator is used to obtain an initial estimate of camera rotation; (2) feature points are located based on a Gabor wavelet model for detecting local curvature discontinuities; (3) estimation of rotation and translation is formulated as a linear problem; and (4) hierarchical coarse-to-fine matching is used. This results in a fast and novel algorithm that produces good results even when large rotations and scale changes have occurred between the two frames and the images are devoid of significant features. Several applications of the algorithm are presented.< >
The hardware annealing function plays a key role in searching for the optimal solutions for Hopfield neural networks and multi-layer back-propagation networks. The winner-take-all function is required in the operation...
详细信息
Video motion estimation and high-ratio image compression are two key data processing steps for advanced television systems and imaging machines. The detailed circuit design of a vector quantization chip with the full-...
详细信息
Video motion estimation and high-ratio image compression are two key data processing steps for advanced television systems and imaging machines. The detailed circuit design of a vector quantization chip with the full-search scheme is presented. Each 5*5 image block with 256 pixel-gray levels can be quantized into the 6-bit codebook by a prototype chip of 4.6 mm*6.8 mm in a 2- mu m scalable MOSIS technology. A speedup factor of 750 over a Sun-3/60 workstation has been obtained. Adaptive codebook learning can be performed with a digital coprocessor.< >
暂无评论