IMAGE PROJECTION SYSTEM, INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM

• Main Authors: NAKASHIGE FUMIHIRO, SUMIYOSHI SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 23.05.2016
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To detect a light spot applied on a projection surface accurately and stably, without any influence of a video signal, in a system using a plurality of image projection apparatuses.SOLUTION: An image projection apparatus includes a synchronization signal output section 11 which transmits a synchronization signal designated to capture a projection surface in a projection period excluding a period where a light instruction apparatus emits light of a predetermined color, to an information processing apparatus. The information processing apparatus includes: a projection control section 28 for projecting projection images so as to synthesize the projection images of a plurality of projection apparatuses; an imaging control section 21 which causes an imaging section to capture the projection surface, in response to the synchronization signal; an irradiation image detection section 24 which detects an irradiation image applied on the projection surface by the light instruction apparatus from image data captured by the imaging section; and an irradiation image generation section 25 which generates irradiation image data by adding a predetermined image according to a position of the detected irradiation image.SELECTED DRAWING: Figure 4 【課題】複数の画像投影装置を用いるシステムにおいても映像信号の影響を受けることなく、精度良く安定的に投影面に照射された光点を検出する。【解決手段】画像投影装置は、光指示装置が照射している照射色とは異なる投影期間を、投影面を撮影するタイミングとして指定した同期信号を情報処理装置へと送信する同期信号出力部１１を備え、情報処理装置は、複数の画像投影装置の投影画像を一つの合成画像となるように各投影画像を投影する投影制御部２８と、同期信号に従い、撮影部に投影面を撮影させる撮影制御部２１と、撮影部で撮影された画像データから光指示装置が投影面に対して照射した照射画像を検出する照射画像検出部２４と、検出された照射画像の位置に応じて所定の画像が付加された照射画像データを生成する照射画像生成部２５と、を備える。【選択図】図４