VIDEO SIGNAL MULTIPLEXERS DEMULTIPLEXERS

Brand	Owner	Address	Description
MEMSCAN	VICON INDUSTRIES INC.	89 Arkay Drive Hauppauge NY 11788	VIDEO SIGNAL MULTIPLEXERS AND DEMULTIPLEXERS FOR USE WITH VIDEO TAPE RECORDERS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method to predict visual quality of a DCT (discrete cosine transform) based compressed image or video stream without referring to its source. When applied to an MPEG video stream, the method is based on (1) an estimation of quantization errors using MPEG quantization scales and statistics of the inverse quantized DCT coefficients, (2) a blind estimation of the 8Ã—8 and 16Ã—16 blocking effect, and (3) an adaptive combination of the quantization error estimation and the blocking effect estimation using the MPEG motion vector information. The method may be used in many applications, such as network video servers, switches and multiplexers for automatic quality monitoring and control of video services, video encoders, decoders, transcoders, and statistical multiplexers for picture quality optimization.