79 results about "Morphological operators" patented technology

A system and method of adding hyperlinked information to a television broadcast. The broadcast material is analyzed and one or more regions within a frame are identified. Additional information can be associated with a region, and can be transmitted in encoded form, using timing information to identify the frame with which the information is associated. The system comprising a video source and an encoder that produces a transport stream in communication with the video source, an annotation source, a data packet stream generator that produces encoded annotation data packets in communication with the annotation source and the encoder, and a multiplexer system in communication with the encoder and the data packet stream generator. The encoder provides timestamp information to the data packet stream generator and the data packet stream generator synchronizes annotation data from the annotation source with a video signal from the video source in response to the timestamp information. The multiplexer generates a digital broadcast signal that includes an augmented transport stream from the transport stream and the encoded data packets. A receiver displays the annotation information associated with the video signal in response to a viewer request on a frame by frame basis. A viewer can respond interactively to the material, including performing commercial transactions, by using a backchannel that is provided for interactive communication.

Methods and apparatus for binarizing images represented by sets of multivalent pixel values in a computationally efficient manner are described In a grayscale image to be binarized, one group of pixel values represents “foreground”, e.g., text to be converted to black, while another group represents a shaded “background” region to be converted, e.g., to white. The difference between foreground and background is often a function of the scale of the image components, e.g., text and / or other images. Filters in the form of morphological operators, computationally efficient quick-open and quick-close morphological operators are employed to binarize images, e.g., grayscale images. The methods and apparatus effectively handle both smooth and sharp image background structures in a computationally efficient manner.

The invention relates to a method for processing the three-dimensional digital image of the surface of a tyre, in which the three-dimensional image of the surface is captured and each pixel of the plane of the image is assigned a datum relating to the elevation of this point in relation to the surface the height of which is to be inspected. The method is characterised in that, with the aid of a morphological operator using a structuring element, a first transformation of the surface is performed, by means of opening followed by closing, such as to adjust the grey scale of pixels located abnormally above or below the surface to be inspected.

Disclosed is a method and system for detecting a structure (e.g., an airway) within an image. The method and system generate a segmented image from the original (reconstructed) image. The method and system then iteratively apply three dimensional morphological operators of varying sizes to the image to obtain a resulting image. The method and system obtain a candidate mask, apply the candidate mask to the resulting image to generate a masked resulting image, and update the segmented image using the masked resulting image to detect the structure. In one embodiment, the segmented image is generated from region growing. Also disclosed is a method to determine different regions of interest within a given segmented image based on computed projections and boundary lines of the segmented image.