Search results for "Structuring element"

showing 2 items of 2 documents

Programmable opticaldigital processor for rank order and morphological filtering

1995

A flexible hybrid opto-electronic processor for rank-order and morphological filtering is presented. The system is based on the shadow-casting convolver architecture, and the threshold decomposition concept. It provides the possibility of programming the input image and structuring element at video rate. The possibilities of the processor are experimentally demonstrated.

OpticsStructuring elementbusiness.industryComputer scienceMorphological filteringComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONDecomposition (computer science)Electrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsImage (mathematics)Optics Communications
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Optoelectronic morphological image processor.

2009

A morphological optoelectronic image processor based on the threshold decomposition concept is described and demonstrated. Binary slices of a gray-scale input image are optically convolved with a binary structuring element of arbitrary size and shape in a noncoherent convolver. The slices are displayed on a liquid-crystal spatial light modulator of 320 × 264 pixels. The kernels are implemented as modifications of the system impulse response. The processor’s convolution patterns are recorded with a CCD camera and fed into a PC by a frame grabber. Subsequent elementary morphological operations are looped. Examples of processing an input image of 256 × 256 pixels and 16 gray levels with kernel…

Point spread functionPixelStructuring elementImage processorComputer sciencebusiness.industryComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONImage processingAtomic and Molecular Physics and OpticsConvolutionFrame grabberComputer Science::Computer Vision and Pattern RecognitionOptoelectronicsbusinessLinear filterOptics letters
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