KR100796849B1 - 휴대 단말기용 파노라마 모자이크 사진 촬영 방법 - Google Patents
휴대 단말기용 파노라마 모자이크 사진 촬영 방법 Download PDFInfo
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- KR100796849B1 KR100796849B1 KR1020060084880A KR20060084880A KR100796849B1 KR 100796849 B1 KR100796849 B1 KR 100796849B1 KR 1020060084880 A KR1020060084880 A KR 1020060084880A KR 20060084880 A KR20060084880 A KR 20060084880A KR 100796849 B1 KR100796849 B1 KR 100796849B1
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- 238000000034 method Methods 0.000 title claims abstract description 72
- 230000008569 process Effects 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 230000001186 cumulative effect Effects 0.000 claims description 9
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- 238000004364 calculation method Methods 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 20
- 238000012545 processing Methods 0.000 description 9
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- 238000010295 mobile communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
- G06T3/4038—Image mosaicing, e.g. composing plane images from plane sub-images
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/16—Image acquisition using multiple overlapping images; Image stitching
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Abstract
Description
원기둥에 투영시키는 알고리즘 : Bresenham type algorithm을 사용하여 정수 연산만으로 의 표를 만든다. |
For For Compute using symmetry. End End |
Claims (7)
- 파노라마 모자이크 사진 촬영 방법에 있어서,상기 파노라마 모자이크 사진을 구성하는 각 영상들의 촬영시에 이전 촬영된 영상의 일부 영상을 가이드 영상으로 하여 현재 촬영하려는 영상의 뷰어에 나타내며, 촬영 조작에 따라 상기 파노라마 사진을 구성하는 다수의 영상들을 촬영하는 과정과,상기 촬영한 영상들을 공통의 원통형(cylinder) 곡면으로 투영하는 과정과,상기 투영한 각각의 영상들을 하나의 영상으로 연결하는 과정을 포함하며,상기 영상들을 원통형 곡면으로 투영하는 과정은영상들의 초점거리를 라하며, 영상들간 회전 각도는 라 하며, 영상의 중심을 원점으로 잡은 영상 좌표계를 라 하며, 영상 의 폭은 , 높이는 라 하며, 위치의 화소는 라 하며, 반지름이 인 원기둥 좌표(cylindrical coordinate)를 라 하며, 가 , 을 만족하는 범위에서 하기 수학식 12에 따라 수행하며,
- 제1항에 있어서, 상기 이전 촬영된 영상의 일부 영상을 가이드 영상으로 하여 현재 촬영하려는 영상의 뷰어에 나타내는 것은 상기 이전 촬영된 영상의 일부 영상을 현재 촬영하려는 영상의 좌표로 변환하여 나타냄을 특징으로 하는 파노라마 모자이크 사진 촬영 방법.
- 제1항에 있어서, 상기 영상들을 원통형 곡면으로 투영시에 영상간 중첩된 영상 영역에 대해서 밝기 차이를 검출하여 영상간 밝기가 동일하도록 조정함을 특징으로 하는 파노라마 모자이크 사진 촬영 방법.
- 제1항에 있어서, 상기 투영한 각각의 영상들을 하나의 영상으로 연결하는 과정은 정렬(aligning) 단계, 스티칭(stitching) 단계 및 블렌딩(blending) 단계를 수행함을 특징으로 하는 파노라마 모자이크 사진 촬영 방법.
- 상기 정렬 단계는 두 영상간 겹치는 영역의 비용을 비용 함수(cost function) 에 따라 구하며, 현재 위치 (0, 0)를 중심으로 미리 설정된 거리의 주변 6개 화소의 위치에 대해 또는 를 이동시키면서 각각에 대해 비용을 구한 후 최소 비용을 찾는 것으로 정렬 상태를 판단하는 육각형 검색 기법을 이용하며,
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020060084880A KR100796849B1 (ko) | 2006-09-04 | 2006-09-04 | 휴대 단말기용 파노라마 모자이크 사진 촬영 방법 |
US11/818,692 US7881559B2 (en) | 2006-09-04 | 2007-06-14 | Method for taking panorama mosaic photograph with a portable terminal |
US12/955,163 US8249390B2 (en) | 2006-09-04 | 2010-11-29 | Method for taking panorama mosaic photograph with a portable terminal |
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KR1020060084880A KR100796849B1 (ko) | 2006-09-04 | 2006-09-04 | 휴대 단말기용 파노라마 모자이크 사진 촬영 방법 |
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KR100796849B1 true KR100796849B1 (ko) | 2008-01-22 |
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