Patent ID: 8416309
Filing Date: 2013-04-09
Classification: G06F,G06K,H04N

Abstract:
1. In an information retrieval system with a camera-fitted information device in use, the camera-fitted information device comprising: a first means for detecting a current position; a second means for detecting an orientation; a third means for transmitting to a server a camera image photographed by the camera of the camera-fitted information device and additional information including position information detected by the first means, orientation information detected by the second means, lens focal length information and photographing magnification information of the camera and then requesting for retrieval of at least one target within a photographing range of the camera image; and a fourth means for receiving from the server a retrieval result related to a target within the photographing range of the camera detected based on the additional information and a target detected based on information in the camera image along with coordinates information indicating a position of the target in the camera image, wherein the server, in response to the requested retrieval of the at least one target within the photographing range of the camera image, retrieves retrieval items of the at least one target within the photographing range of the camera of the camera-fitted information device detected based on the additional information and the target detected based on information in the camera image with reference to retrieval target database of the server, and upon the retrieval, preliminarily classifies the photographing range of the camera into plural regions in accordance with a distance from the current position of the camera-fitted information device so as to retrieve various types of items set for the respective regions such that the retrieval items are different in each of the classified regions, and transmits the retrieved items as the retrieval result to the camera-fitted information device, and wherein the photographing range of the camera is preliminarily classified into at least a first within-close-distance region, a second within-intermediate-distance region, and a third long-distance region, wherein the first within-close-distance region is retrieved for a first type of the target item and the first and second regions are retrieved for a second type of the target items while the first, second and third regions are retrieved for a third type of the target items, wherein the server transmits the retrieved items as the retrieval result to the camera-fitted information device, and wherein the camera-fitted information device based on the received retrieval result causes a retrieval screen for each of the at least one target along with the camera image to be displayed on a display screen of a display section and a target mark to be displayed on the position of the corresponding target in the camera image based on the coordinates information.