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    • 98. 发明申请
    • Image processing device and method, program, program recording medium, data structure, and data recording medium
    • 图像处理装置和方法,程序,程序记录介质,数据结构和数据记录介质
    • US20050012745A1
    • 2005-01-20
    • US10485577
    • 2003-06-03
    • Tetsujiro KondoKenji TanakaTsugihiko Haga
    • Tetsujiro KondoKenji TanakaTsugihiko Haga
    • G06T1/00G06T15/10H04N5/262H04N7/18
    • G06T3/0062G06T15/06G06T15/10G06T15/50H04N5/262H04N7/18
    • An image is readily changed in accordance with a user's viewpoint. Original image data of an object, captured with arbitrary points on a curved surface Ω as viewpoints, is stored. Considering a straight line Li connecting a viewpoint P and a point Ri on the object, an intersection of the straight line Li and the curved surface Ω will be denoted as Qi. When the object is viewed from the viewpoint P, a pixel value corresponding to a light ray directed from the point Ri on the object to the viewpoint P coincides with a pixel value corresponding to a light ray directed from the point Ri on the object to the point Qi on the curved surface Ω, and this pixel value corresponding to the light ray directed from the point Ri to the point Qi exists in the original image data. That is, the pixel value for the point Ri on the object as viewed from the viewpoint P can be obtained from original image data captured with the point Qi on the curved surface Ω as a viewpoint. The present invention can be applied, for example, to an image processing apparatus for obtaining an image in accordance with a user's viewpoint.
    • 根据用户的观点容易地改变图像。 以曲面Ω上的任意点捕获的对象的原始图像数据作为视点被存储。 考虑到连接物体上的视点P和点Ri的直线Li,直线Li和曲面Ω的交点将被表示为Qi。 当从视点P观察物体时,对应于从物体上的点Ri指向视点P的光线的像素值与对应于从物体上的点Ri指向的光线的像素值一致 在曲面Ω上的点Qi,并且对应于从点Ri指向点Qi的点的像素值存在于原始图像数据中。 也就是说,从视点P观察的物体上的点Ri的像素值可以从以曲面Ω上的点Qi捕获的原始图像数据作为视点来获得。 本发明可以应用于例如根据用户观点获得图像的图像处理装置。
    • 99. 发明授权
    • Data processing apparatus, data processing method, and medium
    • 数据处理装置,数据处理方法和介质
    • US06571142B1
    • 2003-05-27
    • US09597854
    • 2000-06-20
    • Tetsujiro KondoKenji Tanaka
    • Tetsujiro KondoKenji Tanaka
    • G06F1700
    • H04N7/0125G06T9/004H04N7/0145
    • A data processing apparatus obtains a prediction coefficient used to predict first data, from second data which has a lower quality than the first data. The apparatus includes a prediction-data extracting section for extracting prediction data used to predict the first data, from the second data; a prediction-coefficient calculation section for obtaining a prediction-coefficient set used to predict the first data by using the first data and the prediction data to both of which a predetermined weight is applied; a prediction-value calculation section for obtaining the prediction value of the first data by using the prediction data and the prediction-coefficient set; a prediction-error calculation section for obtaining the prediction error of the prediction value against the first data; and a weight changing section for changing the weight applied to the first data and to the prediction data, according to the prediction error. The apparatus can obtain a prediction value having a smaller prediction error.
    • 数据处理装置从具有比第一数据低的质量的第二数据获得用于预测第一数据的预测系数。 该装置包括从第二数据提取用于预测第一数据的预测数据的预测数据提取部分; 预测系数计算部分,用于通过使用第一数据和预测数据来获得用于预测第一数据的预测系数集合,其中应用了预定权重; 预测值计算部分,用于通过使用预测数据和预测系数组来获得第一数据的预测值; 预测误差计算部,其针对所述第一数据求出所述预测值的预测误差; 以及权重改变部分,用于根据预测误差来改变应用于第一数据和预测数据的权重。 该装置可以获得具有较小预测误差的预测值。