Rakuten, Inc.

Rakuten Group, Inc.

Tony Tung

Bjorn Stenger

Jiu Xu

Certainty of detecting a watermark embedded in a color image is increased. Image data acquisition means of an image processing device acquires image data. Histogram generation means generates, based on pixel values of an image indicated by the image data acquired by the image data acquisition means, a histogram for each region in the image. Region selection means selects tom the image a region having a sparse color distribution in the histogram generated by the histogram generation means. Image processing means embeds a watermark in the region selected by the region selection means.

Image processing device and image processing method for selecting regions based on gradiation for embedding a watermark

Certainty of detecting watermarks embedded in a color image is increased. Image date acquisition means of an image processing device acquires image data on a color image having a plurality of color channels. Numerical value acquisition means acquires respective numerical values in the plurality of color channels contained in a pixel value of the color image based on the image data acquired by the image data acquisition means. Image processing means embed a watermark in each of the plurality of color channels by changing the numerical value acquired by the numerical value acquisition means.

Image processing device, image processing method for embedding a watermark in a color image

A 3D model generating system for accurately estimating a shape of an entire space surrounded by a plurality of surfaces is provided. Image acquiring means of the 3D model generating system acquires a plurality of images respectively capturing different directions in a space surrounded by a plurality of surfaces. Partial model generating means generates a plurality of partial models respectively corresponding to the images, each of the partial models representing a portion of the surfaces captured in the images. Overall model generating means generates an overall model representing an entire surface based on the partial models generated by the partial model generating means.

3D model generating system, 3D model generating method, and program

Even when an image in which a watermark is embedded is processed, certainty of detecting the watermark is increased. Image data acquisition unit of an image processing device acquires image data. A watermark generation unit generates watermarks having a plurality of sizes. An image processing unit embeds the respective watermarks having the plurality of sizes generated by the watermark generation unit in an image indicated by the image data acquired by the image data acquisition unit.

Image processing device, image processing method, and program for generating water marks

Processing load on a computer can be reduced while saving the labor of photographing an object to estimate a size of the object. Photographed image acquiring means of a 3D model generating system acquires a photographed image in which a first object and a second object are disposed in a real space. Virtual image generating means generates a virtual image in which a first model representing the first object that is a standard size and a second model representing the second object that is not the standard size are disposed in a virtual space. Parameter determining means determines a size parameter indicating a size of the second object based on a result of comparing the photographed image with the virtual image.

A skeleton obtaining unit of a three-dimensional model generating system obtains a skeleton parameter, based on the depth information of an object detected by a depth detecting device. A posture changing unit changes the posture of a three-dimensional model that is able to be deformed based on a body shape parameter, based on the skeleton parameter. A surface shape obtaining unit obtains the surface shape of the object, based on the depth information. A body shape determining unit determines the body shape parameter, based on the difference between the surface shape of the three-dimensional model having the posture changed by the posture changing unit and the surface shape of the object. A body shape deforming unit deforms the three-dimensional model, based on the body shape parameter determined by the body shape parameter determining unit.

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Tokyo, Japan

Tony Tung