12th forum for digitization in museums 第 12 届博物馆数字化推广论坛

12th forum for digitization in museums

第 12 届博物馆数字化推广论坛

Practical museums applications for digital data acquisitionof extremely large pictures and wall paintings

博物馆行业在超大尺寸书画和壁画的数字数据采集工作中的一些实际应用

History企业历程

Since 1979 CRUSE GmbH, located in Reihnbach, Germany (near Boon and Cologne), has been developing and producing equipment to record large sized originals in premium quality to meet our clients´ high demands.

借助于严格处理过的线型 CCD 、均匀光源、统一锐度和复制角度，

严格按照客户想法和需求，所有 CRUSE 扫描仪均在德国进行设计

CRUSE therefore is an excellent partner for archives, fine art printers, repro houses, design houses, libraries, décor-, laminate-, wallpaper-, ceramic-, textile-, pre-press, and packaging industries, as well as museums, land registries, and survey offices. .

德国 CRUSE 公司自 1979 年在波恩和科隆附近城市莱茵巴赫成立，

CRUSE scanners are far superior to the photography of large size original s, thanks to their image capture with alinear CCD in strictly controlled, homogenous light conditions, and with consistent sharpness and reproduction angle.

一直为行业高端客户研发和制造高分辨率的大型图像设备 .

CRUSE 扫描仪完成了完美的图像抓取，也成为在大型稿件成像业界中最专业、最先进的公司。

Each and every CRUSE scanner is constructed in Germany individually, according to the requirements of each customerand therefore is built exclusively to our customers´ needs. This defines CRUSE quality as the international benchmark for the scanning and reproduction of large size originals – with over 640 CRUSE scanners installed in more than 33 countries worldwide.

640 台 CRUSE 扫描仪在全世界 33 个国家服务使用和制造， CRUSE 扫描仪在扫描和复制行业中享极高的名誉，目前

因此也成为那些来自博物馆、文献机构、印刷和包装工业的客户首选的产品制版、装饰、地板、墙纸、瓷砖、纺织、

References代表客户

Some of our clients are:

美国洛杉矶保罗 · 盖蒂博物馆

英国剑桥大学

National Archives ， Washington, DC.

CRUSE 公司的部分客户

Palace Museum ， Beijing, P.R. of China北京故宫博物院

Cambridge University ， UK

美国国家航空航天局（美国太空总署）

埃及亚历山大城图书馆

美国国家档案馆，华盛顿特区

J. Paul Getty Museum, Los Angeles, USA

Bibliotheca Alexandria, Egypt

NASA (National Aeronautics and Space Administration) in Houston, TX, USA

Why is CRUSE so unique?独占鳌头

CRUSE 扫描仪通过下列关键技术独占鳌头：The uniqueness of Cruse ST scanners can be defined through the following key features:

1. 可调至 1200PPI 的极致精度Extremely even and precise scanning with variable resolution up to 1200 ppi (optical resolution)

2. 提供多种可变光模式、扫描原件尺寸可达 2 米 x 3 米Different models for originals up to 200 x 300 cm original size

3. 非常均匀甚至绝对稳定的照明 Very homogenous, even and stable light exposure

4. 线平行扫描 : 全幅面原稿范围内 , 以最大锐度和 100% 色彩均匀度扫描通过 CCD(RGB) 进行逐线获得精准自然的图像

Parallel scanning result: maximum sharpness and 100% parallelism for even the largest originals. Line by line capturing via CCD(RGB) for accurate and natural results

5. 基于 ICC 规范的色彩管理，全世界最先进的色彩特性， ICC based color management. Best color truth of the world according Getty Advanced profiling

6. 完全的无接触扫描 Totally “touch -free” , non contact scanning

7. 实用功能：可对框高 12 厘米以上的图片和原稿进行扫描 Multifunctional: scanning of framed pictures and originals with a frame height of up to 12cm and more

8. 可创建 3D 立体机理效果 (2D 扫描模式下 ) We create a three dimensional plastic TXTURE Effect(2D scan)

9. SD( 表面立体 ) 扫描 , 采集表面深度信息 SD(Surface Detecting) SD scanning to capture depth information

从扫描到打印From Scan to Print

图像数字采集两种端口设备比较：Comparison of two input devices:

Capture System High-End Digital Camera Back Cruse ScannerCRUSE 扫描仪数字后背成像系统

图像传感器Image Sensor

60.5MpxBayer Matrix Sensor

德国巴伐利亚矩阵传感器厂制造

3 x 14400 pxTrilinear CCD Sensor

三合线型 CCD 传感器器厂制造

传感器活跃像素Active Sensor Pixels

6732 x 8984 = 60.5 Million15 Million red- 感应 sensitive

30 Million green- 感应 sensitive

15 Million blue- 感应 sensitive

++

14400 red- 感应 sensitive

14400 green- 感应 sensitive

14400 blue- 感应 sensitive

++

3 x 14400 = 43200


举例一：胶印机 , 70 x 100 cm(27.6 x 39.4 英寸）Comparison of two input devices:


最大图像尺寸Max. Image Size

6289 x 8984 = 56.5Mpx 14400 x 20571 = 296 Mpx

最大分辨率Max. Resolution

244 PPI

300

200

100

523 PPI(2.1x)

抓取像素 (Mio)

014 1428

300

200

100

0

296 296296

获取像素总计： 56.5Mio 获取像素总计： 888 Mio （ 16 倍）

Captured Pixels （ Mio ）

效果图像大小Effective Image Size

Sum captured Pixels Sum captured Pixels


CRUSE 的像素值是单色绝对值Bayer Matrix Red or Green or , Blue



6289 x 8984 = 56.5Mpx 14400 x 20571 = 296 Mpx


244 PPI

300

200

100

523 PPI(2.1x)

抓取像素 (Mio)

014 1428

300

200

100

0

296 296296





CRSUE Red and Green and Blue

与其他制造商单色累积值不同，


举例二：木板 , 25 x 180 cm (9.84 x 70.9 英寸）Comparison of two input devices:



1248 x 8984 = 11.2 Mpx 14400 x 103730 = 149.4 Mpx


127 PPI

300

200

100

1463 PPI(12x)

抓取像素 (Mio)

03 36

1500

1000

500

0

1494 14941494





壁画及大幅面书画扫描仪

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CRUSE Wall Scanner

带有同步台式驱动装置和调焦的 LED 灯光源的 CRUSE 相机系统

Motorized telescopic column

Operating Terminal

组合式轨道系统( 按照所处环境和原稿的尺寸灵活组合 )

• 竖直扫描范围 : 单次幅面 4米 X7米• 最高扫描角落范围 : 天花板以下 70 厘米处• 水平扫描范围 : 600厘米 (组合式的轨道系

统 )• 与画稿的扫描距离 : 无限接近至 95厘米之间• 标准分辨率 : 300 ppi• 景深 : 5 cm• 质地效果

CRUSE 壁画扫描仪简介

水平驱动单元

壁画扫描仪Wall Scanner

CRUSE Camera System with ST drive and focused LED line lights

Modular rail system(adaptable to different room and painting sizes)

• Vertical Scan Area: 70 ... 360 cm from floor• Top edge Scan Area: 70 cm from ceiling• Horizontal Scan Area: 600 cm (modular rail system)• Distance to Paining: approx. 95 cm• Standard resolution: 300 ppi• Depth of field: 5 cm• Texture Effect

Horizontal drive unit

水电机驱动的伸缩立柱

操作终端

Wall Scanner sample configuration世界唯一

壁画及大幅面书画扫描仪在行动

J. Paul Getty Museum, Los Angeles, CA

美国洛杉矶保罗盖蒂博物馆工作现场Wall Scanner in Action

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Getty Museum: The Painting

“Christ's Entry into Brussels in 1889”James Ensor, Ostend, Belgium, 1888 Oil on canvas, 431 x 253 cmGetty Center, J. Paul Getty Museum, Los Angeles, CA

目标作品

《 1889 年，基督来到布鲁塞尔》詹姆斯 · 恩索尔 , 比利时 , 1888 年油画布上油画作品 , 431 x 253 cm盖蒂中心，保罗 · 盖蒂博物馆，美国洛杉矶

Getty Museum: Wall Scanner in Action工作现场

Getty Museum: Results

431 x 253 cm @ 300 ppi = 50905 x 29882 px = 1521 MegapixelsRGB 真色彩（ true RGB ） , 无“去马赛克（ no demosaicing ） ,无插值（ no iterpolation ） : 4,56 billion pixels scanned 文件大小 : TIF, 16 bit/ch: 9,1 GB • TIF, 8 bit/ch: 4,6 GB, 高品质 JPEG 格式（ High Quality JPEG ） : 1,9 GB

作品扫描

15

Getty Museum: Results作品扫描

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17


18


19


20

Getty Museum: Results

作品扫描Getty Museum: Results

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22


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Color management

CRUSE Professional Profiles

色彩管理• 全新的扫描设计和滤光

New scan box and filters

• 专业的色彩方案

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CRUSE Professional ProfilesCRUSE 专业色彩方案

几种不同设置和色彩方案下获取的色彩比较结果

旧 :954BW489 基本方案（ CCSG ）

旧 :954BW489 基本方案人工修正

新 :954BG40 CRUSE 专业色彩方案

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Avg. ∆E00: 3 ... 6


旧有的色彩设置Old configuration

标准色彩管理standard profile

圆点表示色彩匹配异常The dots you see are color mismatches

均值

26

全新的色彩设置

CRUSE 专业色彩组合

几乎没有圆点 !


New configuration,

CRUSE Professional Profile

Almost no dots!

Avg. ∆E00 < 2

(typically: approx. 1,4) (常规值 )

均值

27

色彩管理

“Experiments were performed to analyze the color accuracy of five camera systems used for museum image-archiving applications [...]Only the [experimental RIT multispectral] and Cruse systems produced acceptable results, systems optimized for archival imaging. The [Brand A] system produced self-luminous appearing images while [Brand B] had severe tone reproduction error for high-chroma colors. Both of these new systems would require considerable visual editing to produce archival color images.”

Roy S. Berns, Rochester Institute of Technology, and Stanley Smith, J. Paul Getty Museum (USA)Analysis of Color Management Default Camera Profiles for Museum Imaging ApplicationsPublished in: Archiving 2012Copenhagen, Denmark; June 2012; p. 111-115; ISBN / ISSN: 978-0-89208-300-8

CRUSE Color Management: Expert OpinionsCRUSE 专业色彩管理 : 专业级

Color management“实验中采用了五套不同的照相（扫描）系统以便分析颜色精度等 ····· ，只有制造商 A 和 CRUSE 系统能提供可以接受的颜色结果以及成功优化的档案图片 .当 CRUSE 系统对高色度色彩发出极端色调警报时，制造商 A 的系统也会产生自发光效果的图像。对档案色彩图像而言，这两种系统都是值得推荐使用的 ·····”

- 罗伊 ·伯恩，（罗切斯特科技学院）-史丹利 ·史密斯（保罗 · 盖蒂博物馆）

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• 多光谱扫描

• 表面 3D 深度信息扫描

• 高光谱扫描

3D Scan

Multispectral Scan

Hyperspectral Scan

扫描仪操作和展望Scanner Options and Outlook

高速 3D 成像设备双相机 )High-Speed 3D Camera (stereo camera) available as option for Wall Scanner or Portal Scanner

参考设置 Sample Configurations光学分辨率 Optical resolution 10 μm 15 μm 30 μm 680 μm

扫描宽度 Scan width 40 mm 40 mm 105 mm 2000 mm

扫描高度 Height range 0,5 mm 1,0 mm 3,0 mm 150 mm

常规高度分辨率 Typical height resolution 1-2 μm 3µm 6 μm 0,5 mm

CRUSE 3D Scan3D 立体扫描

• 应用于平面原稿Only for flat objects (e.g. paintings, reliefs, ...)

• 没有图像底切„ 2.5D“: no undercuts (like Cruse SD)• 多设置选择 Several configurations available (see table)• 特快扫描 Extremely fast – typical scan speed: 2ms per line• 实时扫描 Real-time 3D processing possible!

应用 Applications:• 科学应用 Scientific analysis and evaluation• 校验和防伪 Authentication / forgery detection• 可以应用多中行业“

Total Appearance” (complete acquisition of all artwork properties for archiving, presentation and reproduction)

高速、高分辨率的多光谱照相机High-speed, high resolution Multispectral Camera

(4 滤镜 x 3 个 CCD 线 = 12 通道 )(4 filters x 3 CCD lines = 12 color channels)

式扫描描仪和龙门式扫描仪配置功能Available as option for Wall Scanner or Portal Scanner

应用 Applications:

• 解决色彩测量得到解决，特别像素的光谱和色谱数据Spatially resolved color measurement (spectral and colorimetric data for every scanned pixel!)

• 彩色逼真度大幅度提升 Once more Improved color fidelity• 光源依赖度降低 Illuminant-independent image data (prevents metameric mismatches)• 可进行物理学术分析 Scientific analysis and evaluation• 校验和防伪应用 Authentication / forgery detection• 档案、打印等全方位应用“ Total Appearance” (complete acquisition of all artwork properties for archiving, presentation and reproduction)

• 印刷校验 Print inspection (also inline inspection in real-time possible!)• 光谱打印 Spectral printing

Multispectral Scan多光谱扫描

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RGB 扫描3 通道

多光谱扫描举例 5 通道举例扫描件高光谱扫描

举例 100 通道

原稿和复制品Original and Fake

(visually indistinguishable)

R G B0

0.2

0.4

0.6

0.8

1

C1 C2 C3 C4 C50

0.10.20.30.40.50.60.70.80.9

1

混杂难以辨认 /RGBIndistinguishable in RGB

勉强可以辨认的 /多光谱barely distinguishable

in multispectral

00.10.20.30.40.50.60.70.80.9

1

可清晰辨认 / 高光谱clearly distinguishable

in hyperspectral

原稿和复制品可以进行逐个像素的对比

Hyperspectral Scan高光谱扫描

波长Wavelength Range

传感器Sensor

像素Pixels

通道Channels

UV 200 – 400 nm (tbd)

VIS 380 – 780 nm CCD 1600 1200

VIS 380 – 780 nm CMOS 1312 1024

VIS+NIR 400 – 1000 nm CCD 1600 1200

VIS+NIR 400 – 1000 nm CMOS 1312 1024

eNIR 600 – 1600 nm CMOS 320 256

eNIR 600 – 1600 nm InGaAs 640 512

NIR 900 – 1700 nm InGaAs 640 512

SWIR 1,0 – 2,5 µm MCT 320 256

MWIR 3,0 – 5,0 µm (tbd)

LWIR 8,0 – 12,0 µm MCT 384 84

高光谱照相设备 available as option for Wall Scanner, Portal Scanneror tailor-made systems

• Extremely high spectral resolution

• Various wavelength ranges available (see table)• also UV + IR (down to LWIR!) possible

Applications:• Scientific analysis and evaluation 学术应用• Pigment identification 颜料分析• Authentication, counterfeit / forgery detection

验证、防伪 /防伪检测等• ...Imaging Spectrograph

PGP (Prism-Grating-Prism)Image Sensor

spatial axis

spectral axis

Lens

扫描样品(逐线扫描 )

Hyperspectral Scan高光谱扫描

棱镜 - 光栅 -棱镜光学镜头成像传感器

光谱轴

空间轴

光谱成像结构

包括 UV 和到 12µm 的 IR都适用

非常宽的光谱范围 (见右侧表格 )

非常高的光谱分辨率

感谢各位领导、业界朋友！—— 德国 CRUSE 克鲁斯公司

Documents

12th forum for digitization in museums 第 12 届博物馆数字化 推广论坛

12th forum for digitization in museums 第 12 届博物馆数字化推广论坛