公开(公告)号：US20160275374A1

公开(公告)日：2016-09-22

申请号：US14664662

申请日：2015-03-20

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： Lihua Zhu ,  Sridhar Sankuratri ,  Shir Aharon ,  B. Anil Kumar ,  Jeroen E. van Eesteren

IPC: G06K9/62 ,  H04N19/186 ,  G06K9/46 ,  H04N19/176 ,  H04N19/91

CPC classification number: G06K9/6268 ,  G06K9/4642 ,  G06K9/6267

Abstract: Techniques are described for performing multi-stage image classification. For example, multi-stage image classification can comprise a first classification stage and a second classification stage. The first classification stage can determine an overall classification for an input image (e.g., based on a relative entropy result calculated for the input image). The second classification stage can be performed by dividing the image into a plurality of blocks and classifying individual blocks, or groups of blocks, based on a classification model that is specific to the overall classification of the image determined in the first classification stage.

Abstract translation: 描述了执行多级图像分类的技术。 例如，多级图像分类可以包括第一分类阶段和第二分类阶段。 第一分类阶段可以确定输入图像的总体分类（例如，基于为输入图像计算的相对熵结果）。 可以通过基于对在第一分类阶段确定的图像的整体分类特定的分类模型来将图像划分为多个块并对各个块或块组进行分类来执行第二分类阶段。