Patent
Image extraction method and apparatus, and image recognition method and apparatus for extracting/recognizing specific images from input image signals
TLDR
In this article, a two-tone image signal is used to determine whether or not an image part is identical to an object by rotating the object and the length and horizontal length of the circumscribing rectangle are compared with the threshold values.Abstract:
A circumscribing rectangle is obtained for a black continuous image part using a two-tone image signal. If it is determined that the image part is possibly one which is obtained as a result of rotating the object, lengths of sides of the image part are compared with threshold values. If it is determined that the image part is not one which is obtained as a result of rotating the object, the height and horizontal length of the circumscribing rectangle are compared with the threshold values. Thus, it is determined whether or not the image part is identical to the object. An RGB chromaticity histogram is produced for each of small regions of an input color image. Each of the chromaticity histograms of the small regions is compared with reference ones. As a result of the comparison, an identification number of the reference histogram having the highest similarity to that of the small region among those constituting the input image is given to the small region. A histogram of the identification numbers thus is produced for the input color image. The thus-produced histogram is used to determine which one of a plurality of objects is identical to the input color image.read more
Citations
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Patent
System and method for using image data in connection with configuring a universal controlling device
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Object recognition system and process for identifying people and objects in an image of a scene
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TL;DR: In this article, a method, apparatus, and system for detecting a human face in an image is described, which includes, for a subset of pixels in the image, deriving a first variable from the gray-level distribution of the image and a second variable from a preset reference distribution that is characteristic of the object.
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Automated detection of pornographic images
Vasile Buzuloiu,Mihai Ciuc,Razvan Beuran,Horia Grecu,Alexandru Drimbarean,Peter Corcoran,Eran Steinberg +6 more
TL;DR: In this article, a questionable image is selected, and sampled pixels are compared with the color reference database to determine if the pixel is an isolated color or if other comparable pixels surround it; a condition indicating possible skin.
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Workflow system for detection and classification of images suspected as pornographic
TL;DR: An enterprise based workflow server based system to detect and classify images as potentially of pornographic nature is described in this article, where the system is based on two independent stages, an automatic stage which eliminates most images that are positively non pornographic, including an image analysis engine with a plurality of sub engines, each dedicated to different attributes of an image.
References
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Journal ArticleDOI
Color indexing
Michael J. Swain,Dana H. Ballard +1 more
TL;DR: In this paper, color histograms of multicolored objects provide a robust, efficient cue for indexing into a large database of models, and they can differentiate among a large number of objects.
Patent
Apparatus for encoding/decoding video signals to improve quality of a specific region
Hideyuki Ueno,Kenshi Dachiku +1 more
TL;DR: An image encoding apparatus comprises a region detecting circuit for detecting a specific region from input image signals and outputting the region specifying signal for discriminating the specific regions from other regions, a low-pass filter for selectively filtering the image signals of regions other than the specific region in the input image signal, and an encoding circuit for encoding the image signal output from the low pass filter as discussed by the authors.
Patent
Character recognition device which divides a single character region into subregions to obtain a character code
TL;DR: In this article, a character recognition device has a subdivider, a features calculator and a character code recognition device, which is used to extract image data for a single character area from scanned character image data and input to the subdivider.
Patent
Special-document discriminating apparatus and managing system for image forming apparatus having a special-document discriminating function
Michiyoshi Tachikawa,Shigeo Kurotaka,Takeshi Ukai,Yukio Sakano,Kouji Ishigaki,Hiromi Okubo,Kyoji Omi,Toshiya Hikita,Yoshio Kaneko,Takashi Saitoh +9 more
TL;DR: In this article, a special-document discriminating apparatus is presented for providing a counterfeit preventing function to a digital copy machine and a managing system for an image forming apparatus having a special document discriminating function.
Patent
Document image processing method and system having function of determining body text region reading order
TL;DR: In this article, an extracting step extracts text regions from an input document image and a classifying step classifies the text regions into in-order reading regions to be successively read in a predetermined order and different-attribute regions.