Abstract:
A method for redacting an electronic document (ED) having a file format, including: obtaining a request to redact a sensitive data item in the ED; identifying a first and a second instance of the sensitive data item in a markup of the ED, where the second instance of the sensitive data item is not visible in a rendered version of the ED; and generating a redacted ED having the file format by replacing the first and the second instance of the sensitive data item with a neutral data item.
Abstract:
In a digital rights management (DRM) system having a server and a client, a method can dynamically enforce users' access rights to protected documents even after a document is already open in a viewer application on the client. The server has a DRM database storing various access rights of users with respect to documents, and grants access permissions upon request from the client to allow specific users to access specific documents. In addition to requesting access permissions at the time of opening a document, the client requests updated permissions from the server from time to time while the document is still open. If the updated permissions are different from those granted at the time the document was opened, the client dynamically disables/enables or modifies the functions of the viewer application based on the updated permissions while the document is still open.
Abstract:
A method is disclosed of executing a scan calibration program on multi-function peripherals, the method includes: receiving a request for initiation of a scan calibration program on a multi-function peripheral; determining whether or not a print calibration should be performed on the multi-function peripheral before printing a calibration chart on the multi-function peripheral, wherein the determination of whether or not to execute the print calibration is based on a predetermined condition of the multi-function peripheral; executing the print calibration on the multi-function peripheral, if the predetermined condition exists on the multi-function peripheral; and printing the calibration chart on the multi-function peripheral after the determination of whether or not the print calibration should be performed.
Abstract:
A method for objectifying non-text content within a non-native file includes objectifying an object of the non-text content by determining a tag for the object, the tag defining a portion of the object in native file format, and creating an objectified object including the object and the tag. The method further includes generating, based on the objectified object, metadata including composition information for the objectified object, at least part of the composition information being text data capable of being searched by a native application for the native file, and generating a new native file including the objectified object appended with the metadata.
Abstract:
A method for document discovery includes receiving a scan of a physical copy of a document with a non-text object, determining a tag for the non-text object defining a portion of the non-text object in an original file, and generating, based on the tag, non-text object metadata with composition information of the non-text object. The method further includes searching, using the non-text object metadata, electronic documents stored in a data repository, where each of the electronic documents has an object and searchable metadata associated with the object, comparing the non-text object metadata with the searchable metadata, and providing a location of the original file to a user when the non-text object metadata matches the searchable metadata.
Abstract:
A method for binarization of document image using multi-threshold process to determine an optimum global binarization threshold for the image. The optimum binarization threshold is determined by binarizing the document multiple times using different threshold values, and calculating the statistics of the useful information and noise for each threshold value to select the optimum threshold value.
Abstract:
A 2D color barcode layout is disclosed. The barcode includes a 2D array of data cells, four corner locators, and border reference cells forming four borders between the corner locators that substantially surround the array of data cells. Each data cell and border reference cell has one of four primary colors (e.g. CMYK). Most border reference cells have the same size as the data cells, except for yellow ones which are longer. The border reference cells form a repeating color sequence along the borders, and are used during decoding to calculate (1) the channel offset (a spatial offset) of each primary color at different locations along the borders and (2) the reference (average) color values of each primary color. During decoding, the color values of each data cell is measured while taking into account channel offset which is calculated by interpolating the channel offset of the border reference cells.
Abstract:
A method for recognizing abnormal behavior is disclosed, the method includes: capturing at least one video stream of data on one or more subjects; extracting body skeleton data from the at least one video stream of data; classifying the extracted body skeleton data as normal behavior or abnormal behavior; and generating an alert, if the extracted skeleton data is classified as abnormal behavior.
Abstract:
A method, a system, and a non-transitory computer readable medium for recognizing an object are disclosed, the method including: emitting an array of infrared rays from an infrared emitter towards a projection region, the projection region including a first object; generating a reference infrared image by recording an intensity of ray reflection from the projection region without the first object; generating a target infrared image by recording the intensity of ray reflection from the projection region with the first object; comparing the target infrared image to the reference infrared image to generate a predetermined intensity threshold; and extracting the first object from the target infrared image, if the intensity of ray reflection of the target infrared image of the first object exceeds the predetermined intensity threshold.
Abstract:
An improved ghost-artifact detection and removal method for high-dynamic range (HDR) image creation and related apparatus are described. A binary ghost map is first generated for each image of the multiple input images by a ghost-artifact detection process, where one of the binary values indicate ghost pixels and the other indicates non-ghost pixels. Each binary ghost map is smoothed to generate a continuous-tone ghost map, by changing the pixel value of each non-ghost pixel of the binary map to a ghost value between the two binary values. The ghost value is calculated using a monotonous function of the distance between the non-ghost pixel of the binary map and the nearest ghost pixel. Ghost pixels in the binary ghost map are kept as fully ghost pixel in the continuous-tone ghost map. This method helps to reduce visibility of artifacts at ghost boundaries without losing small detected ghost regions.