Patent application number | Description | Published |
20100238354 | METHOD AND SYSTEM FOR ADAPTIVE NOISE REDUCTION FILTERING - Embodiments of the invention are directed to a system and method for noise filtering in a video signal. The method includes dividing at least a portion of a frame into pixel groups and identifying a group as a first-type pixel group, possibly relating to a large change such as motion or light, if a difference parameter relating to the difference between the pixel group and a respective pixel group in a previous frame is larger than a threshold. The method further includes, identifying one or more of the first-type pixel groups as isolated pixel groups, if all the neighbors of the group are pixel groups with a difference parameter smaller than the threshold. The isolated pixel groups are redefined as pixel groups containing noise. The method further includes adapting the threshold based on the number of isolated pixel groups identified. | 09-23-2010 |
20110115980 | AUTOMATIC CONTROL OF VISUAL PARAMETERS IN VIDEO PROCESSING - Embodiments of the invention are directed to a system and method for controlling visual parameters of a capturing device to minimize clipping and saturation according to predefined parameters. The method may include processing pixel values of a current input frame of a received video signal captured by a capturing device; accumulating processing results of the current input frame to processing results of one or more previous input frames and calculating a desired dynamic range based on pre-determined user parameters. The processing may further include checking if the accumulated results are within the desired dynamic range and determining if adjustment is desired. If the accumulated results are not within the desired dynamic range, adjusting visual parameters for a subsequent input frame, by controlling the capturing device and if the accumulated results are within the desired dynamic range maintaining current visual parameters of the current input frame for the subsequent input frame. | 05-19-2011 |
20120114040 | SYSTEM AND METHOD FOR ENHANCING COMPRESSION USING SKIP MACRO BLOCK ON A COMPRESSED VIDEO - A method, apparatus, and computer readable medium for skip macro block compression of a compressed video. The method includes, for at least one INTER frame, saving a set of macro blocks including at least one of a macro block having a motion vector greater than a predetermined motion vector threshold, a macro block having positional correspondence to at least one macro block having a motion vector, a macro block having a size greater than a predetermined macro block size threshold, and a macro block having positional correspondence to a second macro block in a previous group of pictures, the second macro block having a motion vector. The method deletes and marks as skipped one or more remaining macro blocks, and merges the set in an order to create a compressed frame including a skipped macro block. The processor implements the method, and the computer readable medium contains processor instructions. | 05-10-2012 |
20120114314 | METHOD AND SYSTEM FOR UTILIZING STORAGE IN NETWORK VIDEO RECORDERS - The subject matter discloses a method, comprising obtaining a current retention time of storage associated with a digital recorder; obtaining current bitrates of channels used to transmit video captured by edge devices communicating with the digital recorder. The method then determines change in compression rates to be allocated to at least a portion of the channels according to the current retention time and the current bitrates and transmits the change in compression rates to be allocated to the channels to edge devices communicating with the digital recorder. The method can be implemented in a system in which several digital recorders use the same storage. | 05-10-2012 |
20130057721 | AUTOMATIC CONTROL OF VISUAL PARAMETERS IN VIDEO PROCESSING - Embodiments of the invention are directed to a system and method for controlling visual parameters of a capturing device. The method includes analyzing a current frame of a received video signal captured by a capturing device and automatically adjusting visual parameters of the capturing device for a subsequent frame in a feedback process based on analysis of the current frame. The adjustment may reduce clipping and saturation in the subsequent frame. | 03-07-2013 |
20130212440 | SYSTEM AND METHOD FOR VIRTUAL SYSTEM MANAGEMENT - A system and method for virtual system management. A set of data received from a plurality of data sensors may be analyzed, each sensor monitoring performance at a different system component. Sub-optimal performance may be identified associated with at least one component based on data analyzed for that component's sensor. A cause of the sub-optimal performance may be determined using predefined relationships between different value combinations including scores for the set of received data and a plurality of causes. An indication of the determined cause may be sent, for example, to a management unit. A solution to improve the sub-optimal performance may be determined using predefined relationships between the plurality of causes of problems and a plurality of solutions to correct the problems. | 08-15-2013 |
20130343731 | METHOD AND SYSTEM FOR UTILIZING STORAGE IN NETWORK VIDEO RECORDERS - The subject matter discloses a method, comprising obtaining a current retention time of storage associated with a digital recorder; obtaining current bitrates of channels used to transmit video captured by edge devices communicating with the digital recorder. The method then determines change in compression rates to be allocated to at least a portion of the channels according to the current retention time and the current bitrates and transmits the change in compression rates to be allocated to the channels to edge devices communicating with the digital recorder. The method can be implemented in a system in which several digital recorders use the same storage. | 12-26-2013 |
20150163532 | METHOD AND APPARATUS FOR MANAGING VIDEO STORAGE - A system and method for managing video storage in a network including continuously receiving in real time, at a recording server, from an edge device having a local storage, a plurality of incoming packets pertaining to a video stream, determining that at least one packet of the video stream is missing, and retrieving from the edge device the missing packets stored in the local storage, while continuing receiving additional incoming packets pertaining to the video stream in real time. | 06-11-2015 |