Patent application number | Description | Published |
20090046777 | IMAGE COMPRESSION SYSTEM WITH CODING QUANTITY CONTROL - An apparatus and method to preferentially select code quantity from DPCM path in a manner to satisfy the target code quantity thereby preventing deterioration of image quality. Code quantities obtained by a first compression system of quantizing an input image signal by quantization steps different from each other, or code quantities obtained by a second compression system which has compression factor and loss which are lower than those of the first compression system are added on an encoding system selection basis to calculate a total code quantity of equi-length unit. A calculated total code quantity and a target code quantity in the equi-length unit are compared to determine quantization step in the first compression system in accordance with the comparison result to select, on the encoding system selection basis, the first compression system or the second compression system of performing quantization by the determined quantization step. | 02-19-2009 |
20090202219 | VIDEO SIGNAL PROCESSING DEVICE, VIDEO SIGNAL PROCESSING METHOD, VIDEO SIGNAL ENCODING DEVICE, VIDEO SIGNAL ENCODING METHOD, AND PROGRAM - The present invention relates to a video signal processing apparatus and video signal processing method, a video signal encoding apparatus and video signal encoding method, and a program which can solve an EPB problem involved when an encoded video signal is subjected to smart rendering editing. In an extraction process, if EPB problem occurrence prevention countermeasures have been taken in an H.264/AVC stream, smart rendering editing is performed without monitoring the occurrence of an EPB problem. If the countermeasures have not been taken, smart rendering editing is advanced while monitoring the occurrence of an EPB problem. And, in a case where an EPB problem of insertion of an EPB has occurred, a filler or a predetermined parameter corresponding to the inserted EPB is deleted. In a case where an EPB problem of deletion of an EPB has occurred, a filler corresponding to the deleted EPB is inserted. The present invention can be applied to a device that processes a video signal using the H.264/AVC scheme. | 08-13-2009 |
20110026597 | Image Processing Apparatus and Image Processing Method - An apparatus and method provide logic for processing an image. In one implementation, a computer-implemented method is provided to process an image. The method receives information associated with pixels of the image disposed in pixel blocks, and selects one of the pixel blocks as a target block. A motion vector associated with a translation of pixels of a portion of the target block from reference positions in a previously-encoded image is computed at less than integer precision. The method computes predicted image data for the pixels of the target block based on at least the received information and the motion vector, and filters the predicted image data according to a predetermined process. The predetermined process is applied to predicted image data associated with pixels adjacent to a boundary pixel of the target block. | 02-03-2011 |
20110051812 | Video Transmitting Apparatus, Video Receiving Apparatus, Video Transmitting Method, and Video Receiving Method - A video transmitting apparatus includes: an error receiver that receives, from a video receiving apparatus for receiving a bit stream resulting from encoding of video data including pictures, error information indicating that an error is detected; an encoding-mode selector that selects a propagation-prevention encoding mode as an encoding mode when the error receiver receives the error information; and an encoder that encodes the video data in accordance with the selected encoding mode. In the propagation-prevention encoding mode, intra coding is executed on a forced intra block; a search range is set for a reference encoding unit so as not to include correspondent pixels from a boundary line serving as a boundary between the forced intra block and another block, the correspondent pixels corresponding to the number of adjacent pixels; and a restriction is set on deblocking-filter processing through a change in deblocking-filter setting information. | 03-03-2011 |
20110090309 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a receiving unit configured to receive an encoded stream, an image capture type, and image capturing order information, the encoded stream being produced by encoding image data of multi-viewpoint images including images from multiple viewpoints that form a stereoscopic image, the image capture type indicating that the multi-viewpoint images have been captured at different timings, the image capturing order information indicating an image capturing order in which the multi-viewpoint images have been captured; a decoding unit configured to decode the encoded stream received by the receiving unit to generate image data; and a control unit configured to control a display apparatus to display multi-viewpoint images corresponding to the image data generated by the decoding unit in the same order as the image capturing order in accordance with the image capture type and image capturing order information received by the receiving unit. | 04-21-2011 |
20110128355 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes: a coding means for encoding image data of multi-view images forming a stereoscopic image to generate a coded stream; and a transmission means for connecting output time information indicating output time of a decoded result of an image only to coded data of any one of the multi-view images in the coded stream. | 06-02-2011 |
20110142356 | IMAGE PROCESSING METHOD AND IMAGE PROCESSING APPARATUS - Provided is an image processing apparatus including: a prediction portion to perform an inter-magnification-ratio blur-compensation prediction with respect to a reduced-size reference focus face image, to thereby generate an inter-magnification-ratio blur-compensation predicted image at each of a plurality of focus positions, the reduced-size reference focus face image being obtained by reducing a size of a reference focus face image to be a reference of a plurality of focus face images obtained by imaging a subject at the plurality of focus positions; a differential data generation portion to generate, for each of the plurality of focus positions, differential data between the focus face image and the inter-magnification-ratio blur-compensation predicted image generated by the prediction portion; and an encoding portion to encode the reduced-size reference focus face image and the differential data generated by the differential data generation portion. | 06-16-2011 |
20110175993 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - Provided is an image processing apparatus, including: a receiver to receive an all-in-focus image, which is generated through selecting, from focus face images, representative divided images being best-focused images among images in divided regions forming the focus face images, for each of the focus face images correspondingly to the divided regions, the focus face images being obtained through imaging an object at focus positions, and information about the focus positions of the focus face images including the representative divided images; and a predicted-image generator to generate a blur-compensation predicted image corresponding to each of the focus face images through performing a blur-compensation prediction using a blur function with respect to each of the representative divided images based on the information about the focus positions of the focus face images including the representative divided images, the information being received by the receiving means. | 07-21-2011 |
20110242105 | IMAGE PROCESSING DEVICE AND METHOD - The present invention relates to an image processing device and method whereby an image and so forth that a contents producer intends can be displayed in a case where a stereoscopic image content is displayed as a 2D image. | 10-06-2011 |
20120014442 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The present disclosure provides an image processing device including, a feature quantity generating section configured to generate a feature quantity used as a determination criterion for determining which of a temporal prediction using correlation between images in a temporal direction and a parallactic prediction using correlation between images of different visual points is dominant in image coding, and a reference index assigning section configured to assign reference indices to reference pictures used in the predictions on a basis of the feature quantity generated by the feature quantity generating section. | 01-19-2012 |
20120014614 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a quantizer configured to quantize orthogonal transform coefficients of the difference in block units between a coding target picture and a prediction image, a predictor configured to conduct parallax prediction utilizing correlations between the coding target picture and a picture whose view differs from the coding target picture, and a quantization controller configured to determine a protected area that protects image quality from the parallax prediction results, and reduce the quantization step size of the quantizer for quantization of the protected area. | 01-19-2012 |
20120114260 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The present invention relates to an image processing device and an image processing method whereby encoding efficiency of image prediction encoding can be improved. | 05-10-2012 |
20120195513 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The present invention relates to an image processing device and an image processing method that enable a set of images of multiple visual points which images form a stereoscopic image to be recognized in a case of multiplexing and coding the images of the multiple visual points which images form the stereoscopic image even when the coded data is decoded from the middle in a decoding device. | 08-02-2012 |
20130088570 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - Encoding efficiency in multi-view image encoding is to be increased. A feature amount generation unit ( | 04-11-2013 |
20140314159 | IMAGE PROCESSING DEVICE AND METHOD - The present disclosure relates to an image processing device and method that enable improvement in processing efficiency in encoding or decoding. | 10-23-2014 |
Patent application number | Description | Published |
20100054780 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member for bearing an electrostatic latent image; a developing device including a developer carrying member for carrying a developer and developing an electrostatic latent image formed on the image bearing member, and a supplying member for contacting to the developer carrying member to supply the developer to the developer carrying member; and a control device for controlling Vdr and Vrs such that Vrs relative to Vdr increases in a direction of a polarity which is the same as a polarity of the developer with the decrease of an absolute value S, where S is a difference between a peripheral speed Sopc of a surface of the image bearing member and a peripheral speed Sdr of the surface of the developer carrying member, Vrs is a voltage applied to the supplying member, and Vdr is a voltage applied to the developer carrying member. | 03-04-2010 |
20110150513 | IMAGE FORMING APPARATUS - A charge bias causing the surface potential of a photosensitive drum to be lower than that in image formation is applied to a charge roller during a period in which the stop position of a rotary is moved from an unknown state to a home position to cause a developing bias to be applied to a developing roller to be smaller than that in the image formation. | 06-23-2011 |
20110150519 | IMAGE FORMING APPARATUS - An image forming apparatus includes a control unit that performs two types of stop operations in which an image bearing member is rotated or is not rotated after forming an image. The control unit selects the stop operation according to operation time of the image bearing member. | 06-23-2011 |
20110311254 | IMAGE FORMING APPARATUS - An image forming apparatus includes a rotatable image bearing member configured to bear an electrostatic latent image, a plurality of development devices including a developer bearing member configured to bear a developer for developing the electrostatic latent image, a rotatable development device supporting member configured to support the plurality of development devices. In the image forming apparatus, the developer bearing member is configured to execute development while contacting the image bearing member at a development position via the developer, rotating in the same direction as rotating direction of the image bearing member at the development position, and rotating at a speed faster than a surface speed of the image bearing member. In addition, the development device supporting member is configured to rotate in the same direction of a rotating direction of the image bearing member at a position where the development device supporting member and the image bearing member are facing each other, and change a developer bearing member existing at the development position to another developer bearing member by rotating. Furthermore, a relative speed of a surface moving speed of the developer bearing member with respect to a surface moving speed of the image bearing member when the developer bearing member abuts on or separates from the image bearing member due to the rotation of the development device supporting member becomes higher than a relative speed of the surface moving speed of the developer bearing member with respect to the surface moving speed of the surface of the image bearing member when the electrostatic latent image is developed, and a control unit configured to control a first potential difference, which is a potential difference between a potential of a bias applied to the developer bearing member when the developer bearing member abuts on or separates from the image bearing member and a potential of the image bearing member at the development position becomes higher than a second potential difference, which is a potential difference between the potential of the bias applied to the image bearing member and a potential of a non-imaging portion of the image bearing member at the development position. | 12-22-2011 |
20120045229 | IMAGE FORMING APPARATUS - In an image forming apparatus, when no image is being formed, an image bearing member is rotated at least one rotation, in a state in which a transfer bias is controlled such that a potential on a surface of the image bearing member on the upstream side in the rotational direction of a cleaning apparatus is a polarity opposite to that of a developer. | 02-23-2012 |
20120045230 | IMAGE FORMING APPARATUS - A mode in which a toner image formed on an intermediate transfer belt passes through a primary transfer portion without a toner image being transferred from a photosensitive drum onto the intermediate transfer belt is provided. In the mode, an area of the photosensitive drum that passes through the primary transfer portion while the toner image is passing through the primary transfer portion is defined as a first area. When the first area passes through a charging position, a charging bias is adjusted so that the occurrence of an image defect is prevented. | 02-23-2012 |
20140286667 | IMAGE FORMING APPARATUS - An image forming apparatus includes a control unit that performs two types of stop operations in which an image bearing member is rotated or is not rotated after forming an image. The control unit selects the stop operation according to operation time of the image bearing member. | 09-25-2014 |
Patent application number | Description | Published |
20120288293 | COLOR IMAGE FORMING APPARATUS - A color image forming apparatus includes a supporting member, supporting developing devices, for moving the supporting member sequentially to a developing position; a detector for detecting at a position different from the developing position information relating to a developer remainder in the developing device; deducing means for deducing a developer consumption from image information. As to the developing device for which the detection is effected after the developing operation therefor, determining device determines the remainder from the information detected by the detector. As to the developing device for which the detection is effected before the developing operation therefor, the determining means determines the remainder from the information detected by the detector and the consumption amount deduced by the deducing means. | 11-15-2012 |
20120308247 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member; developing devices, each of which includes a developer carrying member, having an electrode member, for carrying a developer, and a developer feeding member, having a core metal and a surface foam layer, for supplying the developer to the developer carrying member; a supporting member, supporting the developing devices, for sequentially rotating the developing devices to a developing position; and a controller for executing an operation for reducing non-uniform distributions of the developers in the developing devices on the basis of electrostatic capacities between the electrode members and the core metals, respectively. | 12-06-2012 |
20130163999 | IMAGE FORMING APPARATUS - An image forming apparatus includes a holding unit configured to change a developing device to first and second orientations. Whether a developer in the developing device is unevenly distributed in a longitudinal direction of the developing device is detected based on a capacitance C1 between first and second electrode members in the first orientation and a capacitance C2 between the first and second electrode members in the second orientation. | 06-27-2013 |
20130164001 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member, a developing device, a holding unit, and a detection device. The image bearing member supports an electrostatic latent image. The developing device includes a developer bearing member having a first electrode member and supporting a developer to develop the electrostatic latent image. The developing device includes a supply member having a second electrode member and supplying the developer to the developer bearing member at a nip portion. The holding unit holds and change the developing device to a first posture and to a second posture where the deposited developer falls off the first posture. The detection device detects a remaining developer amount in the developing device based on a capacitance C | 06-27-2013 |
20140044445 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member on which a developer image is formed, a developer bearing member configured to develop a surface of the image bearing member, and a cleaning member configured to clean a residual developer remaining on the surface of the image bearing member, wherein, when an image forming operation is interrupted, the image forming apparatus is capable of performing a recovery operation before resuming the image forming operation, and wherein the image forming apparatus is capable of, during the recovery operation, a potential difference between a potential applied to the developer bearing member and a surface potential of a non-image area within the surface of the image bearing member greater than that during the image forming operation according to a predetermined value such that the developer on the image bearing member is moved to the developer bearing member. | 02-13-2014 |
20140147139 | IMAGE FORMING APPARATUS - An image forming apparatus including: photosensitive members; charging devices to which a common charging power source applies a charging voltage to charge the photosensitive members; an exposure device configured to expose the photosensitive members; developing devices to form developer images on the photosensitive members; a transfer device to transfer the developer images onto a transfer medium; and a control portion configured to set a lower limit value of the charging voltage for each photosensitive member, apply the charging voltage having a magnitude not less than any lower limit value from the charging power source to the charging devices, control the output of the laser power for each photosensitive member individually, and set, based on the image density of the developer image transferred onto the transfer medium earlier, the lower limit value for a photosensitive member on which a developer image to be transferred onto the transfer medium later is formed. | 05-29-2014 |
20140169815 | IMAGE FORMING APPARATUS - An image forming apparatus including: a plurality of image forming stations; and a control portion configured to control an image forming operation, each of the image forming stations includes: an image bearing member configured to form a toner image on a surface thereof; and a charging device configured to charge the image bearing member, wherein the toner images formed on the image bearing members of the image forming stations are sequentially transferred to a transfer incurring member to be superimposed, wherein the control portion sets a voltage applied to the charging device in forming an image in an image forming station which performs the transfer later based on image density information of the toner image transferred to the transfer incurring member by an image forming station which performs the transfer earlier in a sequence of the image forming operations. | 06-19-2014 |
20140178086 | IMAGE FORMING APPARATUS - An image forming apparatus including: a photosensitive member; a charging device; an exposure device; and a developer carrying member, wherein, when it is assumed that an image forming area, a printing portion and a non-printing portion are an area on the photosensitive member on which an image to be transferred onto a recording material is formed, an area in the image forming area to which the developer adhere and an area in the image forming area to which the developer does not adhere, respectively, the exposure device exposes the printing portion at a first laser power, exposes the non-printing portion at a second laser power smaller than the first laser power, and exposes a non-image forming area on the photosensitive member between two adjacent image forming areas at no laser power or a third laser power smaller than the second laser power. | 06-26-2014 |
20140334853 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A developing device usable with an image forming apparatus includes a developer carrying member for carrying a developer; a developer accommodating portion for accommodating a developer; a guiding member having an inclined surface contacting the developer carrying member, the inclined surface being effective to guide a developer to a contact portion where the inclined surface contacts the developer carrying member to cause the developer to be carried on the developer carrying member; and a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein an inclination angle of the inclined surface is in a range not less than an angle of rest and less than 90 degrees. | 11-13-2014 |
20140334854 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing apparatus for developing operation on an image bearing member, includes a rotatable developer carrying member for carrying a developer; a rubbing member for rubbing the developer carrying member with the developer therebetween to cause the developer to be carried on the developer carrying member; wherein the rubbing member includes a free end portion extending toward a downstream with respect to a rotational moving direction of the developer carrying member, the free end portion rubs the developer carrying member, and wherein the rubbing member is provided with a reinforcing portion for reinforcing the free end portion. | 11-13-2014 |