Patent classifications
G06T3/4084
Image cleanup on a mobile device
Methods, systems, and articles of manufacture, including computer program products, are provided for image cleanup. In some embodiments, there is provide a method which may include subsampling a first image to a first level image of a multiscale transform; performing, based on a machine learning model, an identification of a foreground portion of the first level image and a background portion of the first level image; generating, based on the identification of the foreground portion and the background portion, a first mask; upscaling the first mask to a resolution corresponding to the first image depicting the foreground item; applying the upscaled first mask to the first image to form a second image depicting the foreground item; and providing the second image depicting the foreground item to a publication system. Related systems and articles of manufacture, including computer program products, are also provided.
Method and apparatus for processing an image of a road to identify a region of the image which represents an unoccupied area of the road
A method of processing an image of a scene including a road acquired by a vehicle-mounted camera to generate boundary data indicative of a boundary of an image region which represents an unoccupied area of the road, comprising: generating an LL sub-band image of an N.sup.th level of an (N+1)-level discrete wavelet transform, DWT, decomposition of the image by iteratively low-pass filtering and down-sampling the image N times, where N is an integer equal to or greater than one; generating a sub-band image of an (N+1).sup.th level by high-pass filtering the LL sub-band image of the N.sup.th level, and down-sampling a result of the high-pass filtering, such that the sub-band image of the (N+1).sup.th level has a pixel region having substantially equal pixel values representing the unoccupied area of the road in the image; and generating the boundary data by determining a boundary of the pixel region.
REGION-BASED IMAGE DECOMPRESSION
A method and an apparatus for decoding an image are disclosed. A region of the image is selected and the decoding is selected region and associated metadata is performed. Pixels for a generated for a decoded image based on the decoded selected region and metadata.
System and method for automatically generating scan locations for performing a scan of an environment
Provided are embodiments including a system for automatically generating a plan of scan locations for performing a scanning operation where the system includes a storage medium that is coupled to a processor. The processor is configured to receive a map of an environment, apply a distance transform to the map, wherein the distance transform determines a path through the map, wherein the path comprises a plurality of points, and identify a set of candidate scan locations based on the path. The processor is also configured to select scan locations from the set of candidate scan locations for performing 3D scans, and perform the 3D scans of the environment based on the selected scan locations. Also provided are embodiments for a method and computer program product for automatically generating a plan of scan locations for performing a scanning operation.
TRANSFORMED COEFFICIENT ORDERING FOR ENTROPY CODING
The present disclosure provides a method for encoding input data in an encoder to generate encoded output data, wherein the method includes: instructing the conversion of the input data into base-layer reconstruction data using a down-sampled version of the input data; and generating enhancement-layer data that provides instructions for enhancing the base-layer reconstruction data, wherein the enhancement-layer data comprises residual data representing a difference between a reconstruction generated from the base-layer reconstruction data and data derived from the input data, wherein the residual data are subjected to at least one transform and at least one data compression method to generate the encoded output data, characterized in that the method includes: arranging for the at least one transform to include a Hadamard transform to convert the residual data to corresponding transform coefficients, wherein different output elements of the Hadamard transform are arranged as different surfaces to be encoded, and selecting an output order for the transform coefficients in the surfaces to provide a sequence of transform coefficients for the at least one data compression method to generate the encoded output data, wherein the output order is selected as one of at least a tile raster order and a n-by-n block “Z”-order.
Techniques and apparatus for alphabet-partition coding of transform coefficients for point cloud compression
A method, apparatus, and computer-readable medium for point cloud coefficient coding are provided. The method may include receiving compressed point cloud data based on set-index values and symbol-index values; and entropy-decoding the set-index values based on the compressed point cloud data. The symbol-index values may be bypass-decoded based on the compressed point cloud data, and the set-index values and symbol-index values may be combined into transform coefficients associated with cloud point data.
Systems and methods for sample use maximization
The present invention provides systems, devices, and methods for point-of-care and/or distributed testing services. The methods and devices of the invention are directed toward automatic detection of analytes in a bodily fluid. The components of the device can be modified to allow for more flexible and robust use with the disclosed methods for a variety of medical, laboratory, and other applications. The systems, devices, and methods of the present invention can allow for effective use of samples by improved sample preparation and analysis.
IMAGE CLEANUP ON A MOBILE DEVICE
Methods, systems, and articles of manufacture, including computer program products, are provided for image cleanup. In some embodiments, there is provide a method which may include subsampling a first image to a first level image of a multiscale transform; performing, based on a machine learning model, an identification of a foreground portion of the first level image and a background portion of the first level image; generating, based on the identification of the foreground portion and the background portion, a first mask; upscaling the first mask to a resolution corresponding to the first image depicting the foreground item; applying the upscaled first mask to the first image to form a second image depicting the foreground item; and providing the second image depicting the foreground item to a publication system. Related systems and articles of manufacture, including computer program products, are also provided.
RECONSTRUCTION ALGORITHM FOR FOURIER PTYCHOGRAPHIC IMAGING
A method of generating an image of a substantially translucent specimen includes illuminating and imaging the specimen based on light filtered by an optical element. A plurality of variably-illuminated relatively low resolution intensity images of the specimen are acquired for which content of the images corresponds to partially overlapping regions in frequency space. A relatively higher resolution image of the specimen is then reconstructed by iteratively updating overlapping regions of the relatively higher resolution image in Fourier space with the plurality of variably-illuminated, relatively lower resolution intensity images. The iterative updating processes the plurality of relatively lower resolution intensity images in a first sequence which progresses from a centre region of the relatively higher resolution image in increasing spatial frequency followed by a second sequence which progresses towards the centre region in decreasing spatial frequency.
Region-based image decompression
A method and a non-transitory computer readable medium for decompressing an image including one or more regions are presented. A region of the image is selected to be decoded. The region and metadata associated with the region are decoded, the metadata including transformation and quantization settings used to compress the region. A reconstruction transformation is applied to the region using the transformation and quantization settings.