摘要:
The present invention relates to an apparatus (10) for noise reduction in body part imagery. It is described to provide (210) at least one image; wherein, the at least one image comprises pixel image data of a body part. At least one edge in the at least one image is detected (220), wherein at least one subset of the pixel image data is associated with the at least one edge. Noise in the at least one image is reduced (230), the reduction in noise comprising application of a regularization term to the at least one subset of the pixel image data, wherein the regularization term comprises a plurality of regularization weights. A first vector is determined (240) that is normal to a contour of the at least one edge that is associated with a first pixel of the at least one subset of the pixel image data. At least one second vector is determined (250) that extends from the first pixel to at least one second pixel of the at least one subset of the pixel image data. At least one regularization weight associated with the first pixel and the at least one second pixel is determined (260), wherein a first regularization weight associated with the first pixel and a first one of the at least one second pixel is based in part on an angle between the first vector and a second vector associated with the first one of the at least one second pixel.
摘要:
Techniques and systems are provided for processing video data. For example, techniques and systems are provided for performing content-adaptive morphology operations. A first erosion function can be performed on a foreground mask of a video frame, including setting one or more foreground pixels of the frame to one or more background pixels. A temporary foreground mask can be generated based on the first erosion function being performed on the foreground mask. One or more connected components can be generated for the frame by performing connected component analysis to connect one or more neighboring foreground pixels. A complexity of the frame (or of the foreground mask of the frame) can be determined by comparing a number of the one or more connected components to a threshold number. A second erosion function can be performed on the temporary foreground mask when the number of the one or more connected components is higher than the threshold number. The one or more connected components can be output for blob processing when the number of the one or more connected components is lower than the threshold number.
摘要:
Systems and methods disclosed herein, in accordance with one or more embodiments, provide for the generation of a fused image optimized for a target resolution, such as by receiving an infrared (IR) image captured by an IR imaging sensor, receiving a visible light (VL) image captured by a VL imaging sensor, determining a scaling factor based on a difference between the target resolution and a baseline resolution, and determining a set of target fusion parameters at least by modifying, according to the scaling factor, a set of baseline fusion parameters associated with the baseline resolution. A fused image is generated having the target resolution at least by fusing the IR image and the VL image according to the set of target fusion parameters.
摘要:
Various techniques are disclosed to generate a contrast-enhanced combined image based on a thermal image and high spatial frequency content extracted from a visual light image, said images depicting the same scene. In one example, a method comprises: determining a blending measure indicating the quality of at least one of said images; combining luminance components of pixel values comprised in the thermal image and of pixel values representing high spatial frequency content comprised in the visual light image based on the blending measure; and generating a contrast-enhanced combined image based on the thermal image and the combined luminance components.
摘要:
An apparatus and method are described for a non-uniform rasterizer. For example, one embodiment of an apparatus comprises: a graphics processor to process graphics data and render images using the graphics data; and a non-uniform rasterizer within the graphics processor to determine different resolutions to be used for different regions of an image, the non-uniform rasterizer to receive a plurality of polygons to be rasterized and to responsively rasterize the polygons in accordance with the different resolutions.
摘要:
A method for denoising a range image acquired by a time-of- flight (ToF) camera by first determining locations of edges, and a confidence value of each pixel, and based on the locations of the edges, determining geodesic distances of neighboring pixels. Based on the confidence values, reliabilities of the neighboring pixels are determined and scene dependent noise is reduced using a filter.
摘要:
Image location selection is described for use in a depth photography system. In one example, a method includes receiving a selection from a user of a position in a captured image, comparing the selected position to objects in the image, selecting whether the selected position is intended to be within an object or outside an object, refining the position based on the selection, and determining a depth for an object corresponding to the refined position.