Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.

Abstract: Systems, apparatuses and methods may provide a hybrid compression scheme to store synaptic weights in neuromorphic cores. The hybrid compression scheme utilizes a run-length encoding (RLE) compression approach, a dictionary-based encode compression scheme, and a compressionless encoding scheme to store the weights for valid synaptic connections in a synaptic weight memory.

Abstract: Embodiments of the disclosure relate to proxying one or more email resources in transit to the client devices from the email services, removing one or more email attachments from the email resources, and encoding the stripped email attachments based at least in part on one or more cryptographic keys.

Abstract: According to an embodiment, an image reader for reading an original image formed on a surface of a recording medium is disclosed. The image reader comprises an illumination unit configured to illuminate the surface with a white light source, a light receiving unit comprising a plurality of color image sensors each configured to receive light reflected from the surface to form a monochromatic image, and an image processing synthesis unit configured to process the monochromatic images from the light receiving unit to form a synthesized image. The image reader further comprises an operation unit configured to designate a specific color, and a control unit configured to control the image processing synthesis unit to exclude, from the synthesized image processing, the monochromatic image from the color image sensor that corresponds to the specific color designated in the operation unit.

Abstract: A reproducing apparatus includes: a reproducing portion for reproducing, from a recording medium, moving image data including plural frames whose information amount has been compressed by intraframe encoding; a memory for storing the moving image data reproduced by the reproducing portion; a decoding portion for reading out the frames of the moving image data stored in the memory and decoding the read-out data, the decoding portion reading out the moving image data in succession starting from an upper end of a screen for each frame to decode the read-out moving image data; an instruction portion for instructing enlargement of the moving image data; an enlarging area setting portion for setting, for each frame of the moving image data, a partial area on which enlarging processing is to be performed; a control portion for controlling the decoding portion in accordance with the enlarging instruction, the control portion stopping reading out the one frame of moving image data from the memory, which is performed b

Abstract: There is provided a printing device, comprising: a data receiving unit configured to receive print job data; a buffer used to store the print job data; a judgment unit configured to judge whether the print job data received by the data receiving unit can be stored in available space of the buffer; and a deletion target extraction unit configured such that, in response to the judgment unit judging that the print job data received by the data receiving unit can not be stored in available space of the buffer, the deletion target extraction unit extracts deletion target print job data which can de deleted from the buffer, from among one or more pieces of print job data stored in the buffer.

Abstract: A disclosed image formation apparatus includes: an operation unit allowing input of reading conditions of image data; an input unit reading the image data in accordance with the reading conditions input via the operation unit; a first storage unit storing the image data read by the input unit; a second storage unit storing correspondence relation between the reading conditions and predicted data amount of the image data to be stored in the first storage unit; a data amount prediction unit predicting data amount of the image data to be read based on the reading conditions and the correspondence relation stored in the second storage unit; and a judgment unit judging whether to perform reading of the image data based on the predicted data amount and an available capacity of the first storage unit.

Abstract: A method, apparatus, and computer-readable medium for basis selection is described. A plurality of sub-bands of digital data is generated and a basis function for the digital data in one of the plurality of sub-bands is determined at a rate that provides a substantially peak signal-to-noise ratio for the digital data. The basis function is added to a codebook and the digital data is compressed using the codebook.

Abstract: An image reading apparatus has an image sensor in which a plurality of sensor arrays for reading a document image are connected into a line, and parallel-output image data. In the image reading apparatus, of image data output from each sensor array, image data of a pixel at one end and image data of the remaining pixels are compressed by different compression methods. The compressed data of one line are decompressed by a set method at the timing when the number of pixels reaches a preset number of pixels.

Abstract: In an image forming system, an information processing apparatus (host computer) outputs print data to a printer connected to the apparatus through an interface. The apparatus includes an interface identifying module for identifying the type of the interface, a query module for determining, based on the identified interface type, a quantization method for quantizing print data and/or a compression method, and an image processing module for performing quantization and/or compression on the print data by the determined quantization method and/or compression method. The apparatus outputs, to the printer, the print data processed by the image processing module.

Abstract: This invention relates to an MFP having copy and scanner functions. The MFP in which image data flows from a line sensor to a DRAM via an A/D conversion unit and a reading control unit (RCU) and then from an image processing unit (IPU) to a printer via the DRAM has the following arrangement. Both the RCU and the IPU can execute a shading process. In the CM, the RCU executes the shading process. Then, the image is compressed and stored in the DRAM. In the SM, the RCU does not execute the shading process, and the image is temporarily stored in the DRAM without compression. The IPU reads out image data of each rectangle from the DRAM together with shading data, executes the shading process and various kinds of image processing, and outputs the image data to the DRAM.

Abstract: A data compression and decompression unit that can enhance a data throughput during compression and decompression of data by dynamically allocating the sizes of the input and output buffers to the compression and decompression sections in accordance with a compressibility of data. The data compression and decompression unit includes a compression section that receives bit map data from a terminal, compresses the bit map data with a predetermined compressibility, and generates compressed data, and a decompression section that decompresses the compressed data into an original format, and generates decompressed data. The data unit further includes a memory section that stores the bit map data, the compressed data, and the decompressed data, and a control section that controls the compression and decompression in accordance with the predetermined compressibility.

Abstract: The invention describes a process to prevent counterfeiting or alteration of a printed or engraved surface, characterized by the incorporation of a signature of the form of a digital mark into parts or the entire document, and in particular a digital mark technology to hide information in an invisible way through over-printing by using a method called asymmetric amplitude modulation. This method can be applied to any type of printed material such paper, packaging, or any other surface. Visible information can also be printed over the digital mark. As an application example, applied to a paper document the digital mark can be used to guarantee the document authenticity, as it would be destroyed by a copy process.

Abstract: An image processing apparatus includes a decompression unit (302) that is configurable by dynamic reconfigurable logic into either a first decompression circuit (302a) or a second decompression circuit (302b) that has a slower decompression speed and a lower power consumption than the first decompression circuit (302a), a buffer unit (304) that temporarily stores image data decompressed by the decompression unit (302) to be supplied to an engine unit, and a detection unit (305) that detects a data amount accumulated in the buffer unit (304). In accordance with the data amount detected by the detection unit (305), the decompression unit (302) carries out reconfiguration into the first or second decompression circuit (302a/302b).

Abstract: In one embodiment, a method of processing image data for compression is provided, wherein the image data represents an image and includes a plurality of image data values, each image data value representing an appearance characteristic of a pixel of the image. In one embodiment, the method includes determining a variance between n image data values, comparing the variance to a variance threshold to determine whether the variance meets a preselected condition relative to the variance threshold, and if the variance meets the preselected condition, then changing at least one of the n image data values to reduce the variance.

Abstract: Efficient utilization of a memory medium is enhanced in an image-processing apparatus, in which encoded data of JPEG 2000 or Motion-JPEG 2000 are stored in the memory medium as a file. File size of the encoded data is adjusted close to, but not to exceed an integer multiple of a memory domain management unit (sector size) of the memory medium. Thereby, a memory domain assigned to the image file in its entirety, or almost in its entirety, is used effectively, improving the efficient utilization of the memory medium.

Abstract: In an image forming system, an information processing apparatus (host computer) outputs print data to a printer connected to the apparatus through an interface. The apparatus includes an interface identifying module for identifying the type of the interface, a query module for determining, based on the identified interface type, a quantization method for quantizing print data and/or a compression method, and an image processing module for performing quantization and/or compression on the print data by the determined quantization method and/or compression method. The apparatus outputs, to the printer, the print data processed by the image processing module.

Abstract: A recording apparatus having a plurality of interfaces capable of communicating with external devices performs recording based on recording data input through any one of the plurality of interfaces. The recording apparatus determines which interface is used for receiving the recording data from the plurality of interfaces, and performs conversion processing on the recording data by increasing the amount of data in accordance with the determination result of which interface is used for receiving the recording data. The conversion processing changes depending on whether or not the interface used for receiving the recording data is an interface having a relatively high transfer rate (high speed interface).

Abstract: The present invention makes it possible to transmit an image, which has been captured as by a digital camera, in the form of a file by facsimile communication. To this end, if an X bit of a FIF (Facsimile Information Field) from a receiving machine is ON, the facsimile apparatus judges that the receiving machine has functions for JPEG-receiving in sYCC color space and for receiving an image that has been captured by a digital camera and stored on a memory card. If transmission of image files on a memory card has been specified, those image files are transmitted successively when the X bit of the FIF from the receiving machine is ON. Even if there is a main-scan pixel-number change or a color-monochrome change, a PPS-MPS signal is transmitted and the individual image files are transmitted.

Abstract: This facsimile device comprises inputting means for inputting image data of a subject copy having a width in a main scanning direction larger than an A3-size width, reading means for divisively reading lines of the image data in a sub-scanning direction by dividing the image data into divisional lines of data having a predetermined width, image rotating means for performing an image rotation with respect to each of the divisional lines of data so as to supply rotated divisional lines, encoding means for encoding each of the rotated divisional lines into encoded data, and outputting means for outputting the encoded data.

Abstract: An image encoding method forms units respectively made up of a plurality of pixels belonging to within one period of a digital image data having a periodic property, and carries out an encoding using the units as units of encoding, so that two units which are consecutively encoded are separated by an integer multiple of the period.

Abstract: For the entropy coding of image data after subjected to orthogonal transforation and quantization, a plurality of entropy coding units are provided in parallel. The plurality of entropy coding units can be operated efficiently and the entropy coding can be executed at high speed.

Abstract: An image coding method and an image decoding method is provided by which an image can be restored correctly even if part of memory management information is lost by a transmission channel error, a candidate of a reference image that can be referred to is selected more appropriately, and coding efficiency is improved.

Abstract: An image coding method and an image decoding method is provided by which an image can be restored correctly even if part of memory management information is lost by a transmission channel error, a candidate of a reference image that can be referred to is selected more appropriately, and coding efficiency is improved.

Abstract: In accordance with an embodiment of the present invention, a fax decoding/re-encoding system for transferring fax images between a sending fax machine and a receiving fax machine includes a decoder responsive to an encoded fax image defined by rows of scan lines. The decoder decodes the scan lines of the encoded fax image and generates run-length representation of the encoded fax image. A scanline manipulation device is responsive to the run-length representation for manipulating the same and generating a manipulated fax image without generating a bitmap of the encoded fax image. The fax decoding/re-encoding system further including a re-encoder responsive to said manipulated fax image and adaptive to generate a re-encoded fax image that is substantially the same as the encoded fax image, wherein the fax decoding/re-encoding system avoids the need for a bitmap for generating a re-encoded fax image thereby substantially reducing re-encoding time.

Abstract: An apparatus for transmitting read data comprises a document reader 101, a data compression unit 102, a data transmission means and a CPU 104. The document reader 101 reads in a document having been subjected to predetermined data processing. The data compression unit 102 performs compression of the read data with a designated file format. The CPU 104 checks the limitation on transmission capacity set in advance for each data transmission means. When the volume of data compressed for transmission falls within the limited range of transmission capacity set for the data transmission means, the read data is transmitted to a destination designated by the user via the data transmission means designated by the user.

Abstract: The present invention makes it possible to transmit an image, which has been captured as by a digital camera, in the form of a file by facsimile communication. To this end, if an X bit of a FIF (Facsimile Information Field) from a receiving machine is ON, the facsimile apparatus according to this invention judges that the receiving machine has a JPEG-receive function in sYCC color space and a function for receiving an image that has been captured by a digital camera and stored on a memory card. If transmission of image files on a memory card has been specified, the image files on the card are transmitted successively when the X bit of the FIF from the receiving machine is ON. Even if there is a change in number of pixels of file information in the main-scan direction and a color-monochrome change at this time, a PPS-MPS signal is transmitted and the individual image files are transmitted.

Abstract: The present invention relates to a process for controlling the compression ratio of digital images. This process consists of compressing a digitized image by means of a conventional process such as that known by the abbreviation JPEG. The compression ratio of the image is modified by modifying a parameter of the JPEG process, called the scale factor. According to the invention this scale factor is modified until the compression ratio obtained lies in a range of tolerance of the desired compression ratio. The process uses and approximation to the actual curve of the compression ratio as a function of the scale factor, in order to minimize the number of iterations needed to attain the desired compression ratio.

Abstract: An image coding apparatus includes a still frame coding judgement unit for judging whether a target frame to be coded is a still frame or not from a difference value between the target frame and an immediately previous reference frame, and a quantization parameter control unit for performing control of a quantization parameter value to be used for coding, on an initial one frame at which an image starts to come into a standstill, wherein the initial frame is subjected to coding with less coding error as compared with coding for other frames.

Abstract: Compression apparatus is described that operates to select an optimum compression procedure to apply to received image data. The compression apparatus can be employed in a page printer having a print engine that must be provided with video data at a constant rate in order to avoid a print underrun. The page printer operates to receive print data and to convert the received print data into rasterized page strips. Some or all of these rasteized page strips can then be compressed by the compression apparatus for later conversion to video data. The compression apparatus operates to compress each received rasterized page strip by selecting a compression procedure that results in a compressed strip that will provide optimum print quality while not causing a print underrun and that is below a threshold data size.

Abstract: An image encoding method forms units respectively made up of a plurality of pixels belonging to within one period of a digital image data having a periodic property, and carries out an encoding using the units as units of encoding, so that two units which are consecutively encoded are separated by an integer multiple of the period.

Abstract: An apparatus to determine a transform of a block of encoded data the block of encoded data comprising a plurality of data elements. An input register is configured to receive a predetermined quantity of data elements. At least one butterfly processor is coupled to the input register and is configured to perform at least one mathematical operation on selected pairs of data elements to produce an output of processed data elements. At least one intermediate register is coupled to the butterfly processor and configured to temporarily store the processed data. A feedback loop is coupled to the intermediate register and the butterfly processor, and where if enabled, is configured to transfer a first portion of processed data elements to the appropriate butterfly processor to perform additional mathematical operations and where if disabled, is configured to transfer a second portion of processed data elements to at least one holding register.

Abstract: A method to reduce coding artefacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q). Preferrably, said spatial filtering includes a deblocking filtering, wherein the deblocking filter operation decreases with an increasing image quality value (Q) and/or said deblocking filtering chooses a image quality value (Q) dependent weighting function for a pixel to be filtered according to an activity of both blocks to which common border said pixel belongs.

Abstract: The present invention relates to an image processing technique, and in particular to a method for restoring a compressed image by using a hybrid motion compensation discrete cosine transform (hybrid MC/DCT) mechanism, including: a step of defining a smoothing functional having a smoothing degree of an image and reliability for an original image by pixels having an identical property in image block units; and a step of computing a restored image by performing a gradient operation on the smoothing functional in regard to the original image, thereby preventing the blocking artifacts and the ringing effects in regard to the pixels having an identical property in image blocks. In one embodiment, the method includes obtaining a pixel value in a current block and at least one adjacent pixel value. A type of the current block is one of an intra-coded type and inter-coded type. A smoothing value of the current block is determined based on the obtained pixel value in the current block and the adjacent pixel value.

Abstract: The present invention relates to an image processing technique, and in particular to a method for restoring a compressed image by using a hybrid motion compensation discrete cosine transform (hybrid MC/DCT) mechanism, including: a step of defining a smoothing functional having a smoothing degree of an image and reliability for an original image by pixels having an identical property in image block units; and a step of computing a restored image by performing a gradient operation on the smoothing functional in regard to the original image, thereby preventing the blocking artifacts and the ringing effects in regard to the pixels having an identical property in image blocks. In one embodiment, the method includes obtaining a pixel value in a current block and at least one adjacent pixel value, obtaining a difference value between the pixel value in the current block and the adjacent pixel value, and obtaining a smoothing value of the current image based on the difference value.

Abstract: The present invention relates to an image processing technique, and in particular to a method for restoring a compressed image by using a hybrid motion compensation discrete cosine transform (hybrid MC/DCT) mechanism, including: a step of defining a smoothing functional having a smoothing degree of an image and reliability for an original image by pixels having an identical property in image block units; and a step of computing a restored image by performing a gradient operation on the smoothing functional in regard to the original image, thereby preventing the blocking artifacts and the ringing effects in regard to the pixels having an identical property in image blocks.

Abstract: The present invention relates to an image processing technique, and in particular to a method for restoring a compressed image by using a hybrid motion compensation discrete cosine transform (hybrid MC/DCT) mechanism, including: a step of defining a smoothing functional having a smoothing degree of an image and reliability for an original image by pixels having an identical property in image block units; and a step of computing a restored image by performing a gradient operation on the smoothing functional in regard to the original image, thereby preventing the blocking artifacts and the ringing effects in regard to the pixels having an identical property in image blocks. In one embodiment, the method includes obtaining a pixel value in a current block and at least one adjacent pixel value, obtaining a difference value between the pixel value in the current block and the adjacent pixel value, and obtaining a smoothing value of the current image based on the difference value.

Abstract: The present invention relates to an image processing technique, and in particular to a method for restoring a compressed image by using a hybrid motion compensation discrete cosine transform (hybrid MC/DCT) mechanism, including: a step of defining a smoothing functional having a smoothing degree of an image and reliability for an original image by pixels having an identical property in image block units; and a step of computing a restored image by performing a gradient operation on the smoothing functional in regard to the original image, thereby preventing the blocking artifacts and the ringing effects in regard to the pixels having an identical property in image blocks. In one embodiment, the method includes obtaining a pixel value in a current block and at least one adjacent pixel value according to a smoothing direction, and obtaining a smoothing value of the current image based on the obtained pixel value in the current block and the adjacent pixel value according to the smoothing direction.