Mang
Mang Chen, Shanghai CN
Patent application number | Description | Published |
---|---|---|
20080240618 | Image-document retrieving apparatus, method of retrieving image document, program, and recording medium - Feature vectors used in discrimination of images include information on feature blocks of images in an image-document retrieving apparatus of the present invention. Text areas of a page image document are combined to form rectangular images. On the basis of information on the rectangular images that are extracted, a geometric structure of the page is analyzed, the page image document is divided into plural blocks, and then a plurality of feature blocks describing features of the page document image are selected from the plural blocks. The feature vectors are constituted of information on the feature blocks thus selected. This makes it possible to provide an image-document retrieving apparatus and a method of retrieving image documents, by which retrieval of image documents containing mainly text and a graphic is improvable in accuracy. | 10-02-2008 |
20080244378 | Information processing device, information processing system, information processing method, program, and storage medium - An information processing device includes: a feature extracting section for extracting, as format information, a format feature of a process-target document from image data of the process-target document, on which filling-in spaces of plural items are printed; a document recognizing section for comparing the format information of the process-target document with registered format information stored in a storage device, and specifying a registered document that corresponds to the process-target document, the registered format information regarding format features of registered documents; a data acquiring section for converting characters in the image data of the process-target document into text data; and a distributing section for grouping the image data and text data of the characters into plural groups according to a separation rule that is set for the registered document, the characters being written in the fill-in spaces of the items of the process-target document, and for transmitting the different groups to different external devices. With this, information such as personal information to be protected can be processed, preventing an operator dealing with the information from obtaining the whole information. | 10-02-2008 |
Mang Li, Waterloo CA
Patent application number | Description | Published |
---|---|---|
20150124330 | RELAY LENS SYSTEM FOR A HIGH DYNAMIC RANGE PROJECTOR - A relay lens system for a high dynamic range projector is provided. The relay lens system comprises: a light input; a light output; one or more lenses configured to relay light from the light input to the light output; and, an aperture stop configured to provide a given numerical aperture to the light being relayed through the one or more lenses, the combination of the given numerical aperture and the one or more lenses are configured to: introduce a spherical aberration in the light between the light input and the light output; and, suppress one or more of the following in a ray fan plot of the spherical aberration: local maxima and local minima; and, points where a derivative of the ray fan plot is zero. | 05-07-2015 |
20150124337 | RELAY LENS SYSTEM FOR A HIGH DYNAMIC RANGE PROJECTOR - A relay lens system for a high dynamic range projector is provided. The relay lens system comprising: a light input; a light output; one or more lenses configured to relay light from the light input to the light output; and, an aperture stop configured to provide a given numerical aperture to the light being relayed through the one or more lenses, the combination of the given numerical aperture and the one or more lenses are configured to introduce a spherical aberration in the light between the light input and the light output, the spherical aberration changing a shape of a pixel in the light from an approximate square shape at the light input to a function having an upper boundary and a lower boundary based on a distance from a centre of the pixel, and a pixel dimension of a dither pattern in the light entering the light input. | 05-07-2015 |
Mang Li, San Diego, CA US
Patent application number | Description | Published |
---|---|---|
20150215617 | LOW COMPLEXITY SAMPLE ADAPTIVE OFFSET ENCODING - At least one processor is configured to encode samples of a largest coding unit (LCU) of a picture using a sample adaptive offset (SAO) mode. To encode the samples of the LCU using SAO, the at least one processor is configured to: calculate differences between corresponding reconstructed samples of the LCU and original samples of the LCU, clip a number of bits from each of the differences to form clipped differences, sum the clipped differences to form a sum of differences, clip the sum of differences to form a clipped sum of differences, calculate a number of the reconstructed samples, clip a number of bits from the number of reconstructed samples to form a dipped number of samples, and divide the clipped sum of differences by the clipped number of samples to produce an offset for the LCU. | 07-30-2015 |