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IMAGE DISTANCE CALCULATION DEVICE, AND COMPUTER-READABLE NON-TRANSITORY RECORDING MEDIUM WITH AN IMAGE DISTANCE CALCULATION PROGRAM RECORDED THEREON コモンズ 新技術説明会

外国特許コード F180009382
掲載日 2018年4月19日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP030813
国際公開番号 WO 2018043437
国際出願日 平成29年8月28日(2017.8.28)
国際公開日 平成30年3月8日(2018.3.8)
優先権データ
  • 特願2016-170795 (2016.9.1) JP
  • 特願2017-158781 (2017.8.21) JP
発明の名称 (英語) IMAGE DISTANCE CALCULATION DEVICE, AND COMPUTER-READABLE NON-TRANSITORY RECORDING MEDIUM WITH AN IMAGE DISTANCE CALCULATION PROGRAM RECORDED THEREON コモンズ 新技術説明会
発明の概要(英語) In an image distance calculation device (100), a CPU (104) extracts a frame image from a camera moving-image, generates a slice image by a temporal change of a pixel array on a y-axis at an x0 point of the frame image, calculates a spotting point on the basis of a corresponding relationship between a pixel of the slice image and a pixel of the frame image, finds a pixel of the frame image corresponding to a pixel of the slice image by a backtrace process, performs area division of the frame image and the slice image, determines a corresponding area of the frame image that corresponds to a divided area of the slice image, calculates a ratio value using an average q of the pixel number of the corresponding areas of the frame image and an average p of the pixel number of the divided areas of the slice image, and calculates a distance z from the camera to an object to be photographed using a predetermined distance function in each corresponding area.
従来技術、競合技術の概要(英語) BACKGROUND ART
Conventionally, one image 2 captured at the same time based on the distance to the object to be photographed from the camera position, the parallax calculated by using a method called a stereo vision method has been known (for example, Patent Document 1, Patent Document 2 reference). In the stereovision method, the distance d 2 in the horizontal direction of one of the cameras while maintaining a constant state, using 2 cameras simultaneously photographing the same photographing object. 2 One of each of the image is captured by the camera, d the distance between the cameras at different locations as well as for one shot, the shot image of a captured object becomes slightly different. 2 Is different from the photographed images, based on a distance d due to the influence of parallax. Therefore, 2 appears in two images are compared with photographing object, the pixel position in the lateral direction of the difference, by parallax, based on the following equation, distance to the object to be shot can be calculated.
=the distance to the object to be shot (the focal length of the inter-camera distance x d) ÷ parallax (difference in the pixel in the horizontal direction) based on the moving image shot by the camera and, when obtaining the distance to the object to be shot is also similar. 2 Taken by two cameras moving image more, the same timing (same time) 1 of the pair of frames has been captured in the image is extracted, the extracted image of the pair of frames 1 based on the parallax (difference in the pixel in the horizontal direction) is obtained. Then, the inter-camera (2 a single frame image captured by the position of each respective camera) of the parallax and the distance d, by applying the above equation, distance to the object to be shot, each shooting time can be calculated.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • THE UNIVERSITY OF AIZU
  • 発明者(英語)
  • OKA Ryuichi
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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