Patent application number | Description | Published |
20080219560 | IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, AND IMAGE FORMING APPARATUS - Based on an area detection signal, a layer separation section outputs a text component of a document, to a feature point calculating section, and generates four layers from a pictorial component of the document to output the generated layers to the feature point calculating section. The feature point calculating section sums feature points extracted for each component. A features calculating section calculates a hash value based on the feature points. A vote processing section searches a hash table based on the hash value, and votes for a reference image associated with the hash value. Based on the voting result, a similarity determination processing section determines whether the document image is similar to any reference image, and then outputs the determination result. Thus, even if the document contains a photograph, accurate matching can be performed. | 09-11-2008 |
20080239350 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD - In an image processing apparatus for determining whether input image data is identical with image data of a reference image or not and performing a process according to the result of the determination, input image data whose similarity to a reference image is not less than a predetermined first threshold value or encoded image data obtained by encoding the input image data is stored in an access limitation storage section to which only a specific user is accessible. This allows an administrator to easily check whether the result of the determination is appropriate or not, without requiring a larger and more complex structure. | 10-02-2008 |
20080240492 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD - A storage process section stores, into an exceptional reference image list, discrimination information for discriminating a reference image which permits image processing and a reference image which forbids or restricts image processing. In case where a maximum value of a similarity calculated by a voting process section is not less than a threshold value, a control section determines whether a reference image having a maximum similarity is the reference image which permits image processing or a reference image which forbids or restricts image processing and determines whether or not it is necessary to forbid or restrict image processing with respect to input image data in accordance with a result of the determination. This makes it possible to prevent erroneous determination from forbidding execution of image processing based on input image data or to prevent erroneous determination from allowing execution of image processing based on input image data. | 10-02-2008 |
20080260260 | Image processing apparatus, image forming apparatus, image processing system, computer program and recording medium - An image processing apparatus includes a feature point calculating section for extracting two or more connected components from a document image of interest and calculating the feature point from the centroid defined in each of the connected components, a features calculating section for calculating the features of the document image from the distance between the feature points, a voting processing section for voting one of the registered images which is similar to the document image as reviewing the features, and a similarity judging process section for judging the similarity from the result of the voting, wherein the description of the processing to be executed for the output is determined from the result of the similarity judgment. | 10-23-2008 |
20080292189 | IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE PROCESSING SYSTEM, AND IMAGE PROCESSING METHOD - An image processing apparatus includes: a data obtaining section for obtaining input image data; a memory in which reference image data or features of a reference image is stored; and a similarity determination process section for performing a determination process in which it is determined whether the input image data is image data corresponding to the reference image or not. The similarity determination process section changes the determination process in accordance with related information of the input image data. Consequently, it is possible to realize an image processing apparatus capable of determining a similarity between input image data and a reference image and restricting a process on the input image data in accordance with the result of the determination. | 11-27-2008 |
20090034847 | Image processing apparatus, image processing system, image processing method, and image forming apparatus - In a card serving as an external storage device to be inserted into a digital color multi-function printer, features of a reference image and processing rule information indicating processing content to be applied to input image data judged to be similar to the reference image are prestored. Then, in cases where the input image data is judged to be similar to the reference image, the content of a process to be performed on the input image data is controlled in accordance with the processing rule information corresponding to the reference image. This makes it possible to save users the trouble of setting the content of a process to be performed on input image data, and to prevent a shortage of memory capacity of a memory of the image processing apparatus even in cases where there is an increase in the number of reference images. | 02-05-2009 |
20090087098 | IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE READING APPARATUS AND MEMORY PRODUCT - In storing of a document page index of a reference image in association with each hash value calculated for each reference image by the features calculating section, a storage processing section determines whether the number of document page indexes, which have already been stored in association with each hash value, is larger than or equal to a preliminarily setup upper limit value or not. The storage processing section stores the document page index of a reference image in a hash table in association with the hash value calculated by the features calculating section when the number of document page indexes, which have already been stored, is smaller than the upper limit value, or invalidates the hash value when the number of document page indexes, which have already been stored, is larger than or equal to the upper limit value. | 04-02-2009 |
20090096768 | DISPLAY SYSTEM AND METHOD FOR DETECTING POINTED POSITION - At least two infrared light-emitting areas are displayed within a display screen of a liquid crystal display apparatus. The infrared light-emitting areas are areas for emitting light having a wavelength in the infrared region. Then, an image is captured by an operating device in the direction of a position pointed by the operating device. A position on the display screen that is pointed by the operating device is calculated based on the positions of the infrared light-emitting areas that are included in the captured image. This arrangement makes it possible to appropriately calculate the position on the display screen that is pointed by the operating device, independently of the distance between the operating device and the display screen of the liquid crystal display apparatus. | 04-16-2009 |
20090122030 | DISPLAY SYSTEM AND METHOD FOR DETECTING POINTED POSITION - A plurality of infrared-light-emitting areas are displayed in a display screen of a liquid crystal display apparatus in a method that allows each of the infrared-light-emitting areas to be distinguished. Then, an image in a direction of a pointed position is captured by an operating device. Further, a predetermined number of infrared-light-emitting areas are selected from the infrared-light-emitting areas included in thus captured image. Based on a result of distinguishing each of the selected infrared-light-emitting areas and a position of each of the selected infrared-light-emitting areas, a pointed position on the display screen is calculated. This makes it possible to properly detect the pointed position on the display screen pointed by the operating device, regardless of a distance between the operating device and the display apparatus. | 05-14-2009 |
20090140980 | DISPLAY SYSTEM AND METHOD FOR DETECTING POINTED POSITION - A plurality of infrared-light-emitting areas are displayed in a display screen of a liquid crystal display apparatus in a method that allows each of the infrared-light-emitting areas to be distinguished. Then, an image in a direction of a pointed position is captured by an operating device. Based on a result of distinguishing each of the infrared-light-emitting areas and a position of each of the infrared-light-emitting areas, a pointed position on the display screen is calculated. This makes it possible to properly detect the pointed position on the display screen pointed by the operating device, regardless of (i) a distance between the operating device and the display apparatus and (ii) a rotation angle of the operating device around an axis in an image capture direction of the operating device. | 06-04-2009 |
20090238464 | IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS AND STORAGE MEDIUM - An image processing apparatus includes: a feature point extracting section for extracting feature points (first feature points) of first document image data and feature points (second feature points) of second document image data, a features calculating section for calculating features (first features) of the first feature points and features (second features) of the second feature points, a matching process section for comparing the first features with the second features, and for extracting a plurality of first feature points and a plurality of second feature points whose features agree with each other, a coordinate transformation section for transforming a coordinate system of the second document image data into that of the first document image data based on coordinates of the first and second feature points extracted, and a logical AND operation section for extracting image data having a common format contained in the first and second document image data by performing logical AND operation of the first document image data and the second document image data subjected to the coordinate transformation. This makes it possible to precisely perform positioning of a plurality of document images containing a common part and to precisely extract an image of the common part from the plurality of document images. | 09-24-2009 |
20120075671 | PRINTING SYSTEM, COMPUTER, IMAGE FORMING APPARATUS AND PRINTING METHOD - In a printing system configured such that a computer and an image forming apparatus can be connected via a network, the computer sets a stamp image and transmits the set stamp image to the image forming apparatus via the network. The image forming apparatus includes a reading device that reads an original image, an image combining unit that reads out at least one stamp image from a storage unit, combines the stamp image with the original image read by the reading device, and forms a composite image, and a printing unit that prints the composite image on recording paper. | 03-29-2012 |