Photo classification using optical parameters of camera from EXIF metadata
First Claim
1. A method for classifying digital images, comprising:
- hierarchically clustering the digital images into a set of meaningful clusters based on at least two levels of clustering optical parameters, including;
clustering the digital images based on determined light content of the digital images andclustering the digital images based on depth of field associated with the digital images;
associating the set of meaningful clusters to a set of associated classes used by a user; and
classifying the digital images according to the set of associated classes.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of classifying and organizing digital images utilizing optical metadata (captured using multiple sensors on the camera) may define semantically coherent image classes or annotations. The method defines optical parameters based on the physics of vision and operation of a camera to cluster related images for future search and retrieval. An image database constructed using photos taken by at least thirty different users over a six year period on four different continents was tested using algorithms to construct a hierarchal clustering model to cluster related images. Additionally, a survey about the most frequent image classes shot by common people forms a baseline model for automatic annotation of images for search and retrieval by query keyword.
26 Citations
18 Claims
-
1. A method for classifying digital images, comprising:
-
hierarchically clustering the digital images into a set of meaningful clusters based on at least two levels of clustering optical parameters, including; clustering the digital images based on determined light content of the digital images and clustering the digital images based on depth of field associated with the digital images; associating the set of meaningful clusters to a set of associated classes used by a user; and classifying the digital images according to the set of associated classes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for organizing digital images, comprising:
-
deriving optical parameters from the digital images; determining a visual cue in the digital images based on depth of field associated with the digital images; accessing a set of subject classes commonly used by a user and assembled into predefined parameters; determining a semantic concept for the digital image by associating the visual cue with the set of digital image subject classes; and organizing the digital images into classifications according to the associations determined by the visual cue. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method for using optical metadata of a digital image to classify the digital image, the method comprising:
-
analyzing the optical metadata to cluster the digital image with other digital images having similar optical concepts based on indicators of light content and depth of field in the optical meta data of the digital image; comparing the cluster with human induced labeled images having similar optical concepts based on indicators of light content and depth of field associated with the human induced labeled images; and corresponding the human induced labeled images with a classification for the digital image. - View Dependent Claims (16, 17, 18)
-
Specification