NO20200134A1 - Motion compensation in phase-shifted structured light illumination for measuring dimensions of freely moving objects - Google Patents
Motion compensation in phase-shifted structured light illumination for measuring dimensions of freely moving objectsInfo
- Publication number
- NO20200134A1 NO20200134A1 NO20200134A NO20200134A NO20200134A1 NO 20200134 A1 NO20200134 A1 NO 20200134A1 NO 20200134 A NO20200134 A NO 20200134A NO 20200134 A NO20200134 A NO 20200134A NO 20200134 A1 NO20200134 A1 NO 20200134A1
- Authority
- NO
- Norway
- Prior art keywords
- fish
- projector
- speed
- spatial
- camera
- Prior art date
Links
- 238000005286 illumination Methods 0.000 title claims description 69
- 230000033001 locomotion Effects 0.000 title description 12
- 241000251468 Actinopterygii Species 0.000 claims description 173
- 238000012545 processing Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 27
- 230000000737 periodic effect Effects 0.000 claims description 24
- 238000003384 imaging method Methods 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 19
- 238000005259 measurement Methods 0.000 description 18
- 238000013459 approach Methods 0.000 description 10
- 238000004422 calculation algorithm Methods 0.000 description 10
- 238000004458 analytical method Methods 0.000 description 8
- 238000003491 array Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000010363 phase shift Effects 0.000 description 7
- 230000010287 polarization Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 238000004091 panning Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 241000168096 Glareolidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
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- 238000003708 edge detection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
- A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
- G01B11/2522—Projection by scanning of the object the position of the object changing and being recorded
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
- G01B11/2527—Projection by scanning of the object with phase change by in-plane movement of the patern
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2545—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object with one projection direction and several detection directions, e.g. stereo
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/269—Analysis of motion using gradient-based methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/292—Multi-camera tracking
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/254—Image signal generators using stereoscopic image cameras in combination with electromagnetic radiation sources for illuminating objects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1710705.3A GB201710705D0 (en) | 2017-07-04 | 2017-07-04 | Structured-Light Illumination |
| PCT/GB2018/051833 WO2019008330A1 (fr) | 2017-07-04 | 2018-06-29 | Compensation de mouvement dans un éclairage de lumière structurée à décalage de phase permettant de mesurer des dimensions d'objets susceptibles de se déplacer librement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO20200134A1 true NO20200134A1 (en) | 2020-02-03 |
Family
ID=59592446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20200134A NO20200134A1 (en) | 2017-07-04 | 2020-02-03 | Motion compensation in phase-shifted structured light illumination for measuring dimensions of freely moving objects |
Country Status (3)
| Country | Link |
|---|---|
| GB (1) | GB201710705D0 (fr) |
| NO (1) | NO20200134A1 (fr) |
| WO (1) | WO2019008330A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO347348B1 (no) * | 2019-06-19 | 2023-09-25 | Subc3D As | System og framgangsmåte for avbildning og telling av eksterne strukturer på en fisk |
| US11710245B2 (en) * | 2020-02-25 | 2023-07-25 | Jack Wade | Real-time marine snow noise removal from underwater video |
| US11170209B1 (en) | 2020-04-21 | 2021-11-09 | InnovaSea Systems, Inc. | Systems and methods for fish volume estimation, weight estimation, and analytic value generation |
| WO2022036281A1 (fr) | 2020-08-14 | 2022-02-17 | Martineau & Associates | Systèmes et procédés d'imagerie d'organismes aquatiques |
| CN114485470B (zh) * | 2022-01-30 | 2023-04-28 | 北京理工大学 | 基于散斑的复合材料三维形貌及缺陷综合测量系统和方法 |
| CN115307576B (zh) * | 2022-08-02 | 2024-04-09 | 清华大学 | 一种结构光测量中的阶梯边界补偿方法及装置 |
| CN115812646B (zh) * | 2022-12-05 | 2023-07-11 | 中国电建集团成都勘测设计研究院有限公司 | 鱼道内鱼类行为分析方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007054332A1 (fr) * | 2005-11-10 | 2007-05-18 | OBE OHNMACHT & BAUMGäRTNER GMBH & CO. KG | Puce de camera, camera et procede de prise d'image |
| JP4986679B2 (ja) * | 2007-03-29 | 2012-07-25 | 学校法人福岡工業大学 | 非静止物体の三次元画像計測装置、三次元画像計測方法および三次元画像計測プログラム |
| NO337305B1 (no) | 2012-12-20 | 2016-03-07 | Ebtech As | System og fremgangsmåte for beregning av fysiske størrelser for fritt bevegelige objekter i vann |
-
2017
- 2017-07-04 GB GBGB1710705.3A patent/GB201710705D0/en not_active Ceased
-
2018
- 2018-06-29 WO PCT/GB2018/051833 patent/WO2019008330A1/fr active Application Filing
-
2020
- 2020-02-03 NO NO20200134A patent/NO20200134A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019008330A1 (fr) | 2019-01-10 |
| GB201710705D0 (en) | 2017-08-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CREP | Change of representative |
Representative=s name: DEHNS NORDIC AS, FORNEBUVEIEN 33, 1366 LYSAKER |