Abstract: A stereo vision system includes a first camera sensor and a second camera sensor. The first camera sensor is configured to sense first reflected energy and generate first sensor signals based on the sensed first reflected energy. The second camera sensor is configured to sense second reflected energy and generate second sensor signals based on the sensed second reflected energy. The stereo vision system further includes a processor configured to receive the first sensor signals from the first camera sensor and configured to receive the second sensor signals from the second camera sensor. The processor is configured to perform stereo matching based on the first sensor signals and the second sensor signals. The first camera sensor is configured to sense reflected energy that is infrared radiation. The second camera sensor is configured to sense reflected energy that is infrared radiation.

Abstract: A discrete transform image data compression system in which frequency transform coefficients are modified in accordance with a matrix of quantizer values employs a predefined plurality of quantization matrices to adaptively select, on a document-by-document basis, an approximate memory packet size for each document's compressed image data storage by selecting one of the plurality of quantization matrices in accordance with the packet size estimate obtained for each document image. Additionally, the system employs generation of contrast reduction and gray level stretch remapping curves as a function of global image data characteristics, such as a gray level histogram of the document image data. The remapping curves are utilized to preprocess the image data for more effective data compression.