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Imatest软件检测图像的稳定性和比拟明晰度

浏览: 手机彩票网日期:2017-07-10

ImatestRUANJIANZHONGYOUYIGEMOKUAITEDIYONGYUJIANCETUXIANGDEWENDINGXINGHEBINIMINGXIDU,CIMOKUAISHISFRplusDEHOUCHUZHIMOKUAI。

GUANGXUETUXIANGWENDINGXING(YEJIANCHENGISHUOOIS)NENGGOUJINGGUOBINISANZHANGLEISIDESFRplusTUXIANGZHONGXIANGJINDECHENGDUHECHUIZHIXIEBIANDEMTFZHI HUOXIANGDUIZHANGDULAIPOUXI。

1.DIYIZHANGTUWEIBUFAZUOZHANDONGSHIPAISHEDETUXIANG(Unshaken).

2.DIERZHANGSHIFAZUOZHANDONGSHI,WEIKAIFANGDOUGONGYONGSHIPAISHEDETUXIANG(Shaken without Image Stabilization)。YOUXIEXIANGJIMEIYOUFANGDOUFANKAIHUOGUANBIDEXUANXIANG,ZHEIZHONGZHUANGKUANGXIAYOUJIZHONGBANFANENGGOUTINGZHIFANGDOUXINGNENGDECESHI。YIZHONGSHIYUNYONGZHUNQUEDEMOFANGZHANDONGDESHEBEI,YIZHIBIANHUADEJIAODU。LINGYIZHONGSHIXUANZEYIGELEISIXIANGSUPEIZHIHEJIAOJUDEBUDAIOISGONGYONGDEXIANGJI。

3.DISANZHANGTUSHIFAZUOZHANDONGSHI,FANKAIFANGDOUGONGYONGTINGZHIPAISHEDETUXIANG。

标准 SFRplus 测试卡

特殊的 SFRplus 测试卡

BIAOZHUN SFRplus CESHIKA

TESHUDE SFRplus CESHIKA,SHENHUIKUAIDEJIANJUJIAODA,

YONGYUSHUNYINGJIAODAFANWEIDEZHANDONG

BUZHANDONGDETUXIANGZHIXUQIUYIZHANG,DANSHIZHANDONGSHIWEIKAIFANGDOUGONGYONGHEFANKAIFANGDOUGONGYONGTUXIANGZECHANGYIXUQIUDUOZHANG,RU10ZHANGHUOGENGDUO。

BINILIANGZHANGTUXIANGDEMINGXIDUSHI,SHIJIANSHANGSHIBINILIANGZHANGTUXIANGDANGXUANDINGQUYUDEMTFSHUJU,Image Stabilization/Sharpness Compare GONGYONGNENGGOUSHENGCHENGQUANTUXIANGDEBINIJIEGUO。

Image Stabilization/Sharpness Compare SHURUDESHUJUSHILIANGGEHUOSANGEJSONGESHIDEWENJIAN,GAIWENJIANYOUSFRplusMOKUAISHENGCHENG。

GONGYONGBINI:YIXIALIANGGEGONGYONGDOUNENGGOUBINIBUTONGTUXIANGDEMINGXIDU

MTF Compare

NENGGOUBINIYOUSFR、SFRplus、eSFR ISOMOKUAISHENGCHENGDECSVJIEGUOWENJIAN。NENGGOUBINIMEIGEXIEBIAN。XIANXIANLIANGZHANGTUXIANGDEMTFBIZHAO,(A/B)HUO(B/A)。

OIS/Image CompareImageStabilization/

Sharpness Compare

JINYONGYUSFRplusMOKUAI。SHURUSHUJUWEILIANGGEHUOSANGEJasonGESHIDEWENJIAN,YOUSFRplusMOKUAISHENGCHENG。ZAISFRplusMOKUAIZHONGBIXUXUANZEImage StabilizationGONGYONG。BINIDETUXIANGZHIJIANXUANZEDEROIQUYUBIXUXIANGTONG。YUNYONGSANZHANGTUXIANGLAIJISUANOISDEYOUXIAOXING。

Batchview

BatchviewPICHUZHIGONGYONGNENGGOUYONGYUSFR, SFRplusHE eSFR ISOMOKUAI,NENGGOUYONGYUBINIDUOGETUXIANGZHIJIANDECHABIE,BINGJIANGJIEGUOBAOGUANWEIroot file_sfrbatch.csv。 

 

 

1. SHOUXIANPAISHETUXIANG。GUANGZHAOTIAOJIANSHIFENZHONGYAO,YOUYUTAHUIYINGXIANGKUAIMENSUDU,SUOYIBIXUYAOYOUHENHAODEPINGJUNGUANGZHAO,BINGQIECESHIKASHANGMEIYOUFANGUANG。XIANGJIYINGANFANGYUYIGEMOFANGZHENDONGDEPINGTAI,ZHISHAONENGGOUCHANSHENGCHENGDUHEFUYANGXUANZHUANYUNDONG。ZAIFANKAIHEGUANBIFANGDOUGONGYONGSHIFENBIEPAISHE10DAO20ZHANGTUXIANG。

2. FENBIEXUANZEMINGXIDUZUICHADETUXIANG

ZHAOCHUZUIMINGXIDETUXIANGDEBANFASHIFind Sharpnes FilesGONGYONG,TANENGGOUZAIDUOZHANGTUXIANGZHONGKUAISUZHAODAOMTFZHIZUIDADETUXIANG,BINGPAIXUSUOXUANDETUXIANG。

 

LINGWAI,ZAISFRplust MOKUAIZHONGYENENGGOUXUANZECombine files for signal averagingGONGYONGDEDAOJUNYUNZHI。

ZAI SFRplusMOKUAIZHONGBINILIANGZHANGHUOSANZHANGTUXIANGSHI,ROIQUYUXUANZEBIXUFENQI。YOUTUSUOXIANXIANDE5GECHENGDUHE5GECHUIZHIQUYUSHIBINIHAODEXUANZE。XUANZEZHONGJIANYIGEWEIZHI,SIGEBIANJIAOWEIZHI,ZUGOUPOUXIZHONGJIANHEBIANYUANFANGDOUDEXIAOGUO。ZIDINGYIROIQUYUYESHIZHICHIDE

SFRplus 区域选择图

SFRplus QUYUXUANZE

ROIFANWEIXUANZEWider (HUO Widest), Smooth for OISXUANXIANGYINJIANXUANZE,YOUYUFANGDOUSHIBIANYUANKENENGSHIFENHANHUHU。

 

 ZAISFRplusSHEZHIZHONGYIDINGYAOXUANZESHI Image StabilizationXUANXIANG。ZHEIYANGNENGGOUQUEBAOSHENGCHENGJASONGESHIDEWENJIAN,YIYONGYUPOUXIXIFANGDOUXIAOGUO。 JIARUNISHIZAIReschartsZHONGMOKUAIZHONGPOUXI,QUEBAOZAIBAOGUANWENJIANSHIXUANZEJASONGESHI。

3. SHOUJICAIPIAOWANGOIS/Image CompareANNIUYUNZHUANImage Stabilization MOKUAI。JIANGXIANXIANYIXIACHUANGKOU。

Image Stabilization opening window

Image Stabilization opening window

CHUANGKOUDEXIABIANHUIRANGNIXUANZEYOUSFRplusMOKUAISHENGCHENGDESANGEJASONWENJIAN 。

4. RANHOUSHOUJICAIPIAOWANGSHANGTUZHONGDECalulateANNIU,JISUANJIEGUO。

 

 

YONGYUDINGYI Image StabilizationCANSHUDEMINGCI

。NoS

NO ShakeDEJIANXIE,DAIBIAOBUZHANDONGDETUXIANG

Shake

ZHANDONGBINGGUANBIOISSHIPAISHEDETUXIANG

OIS

ZHANDONGBINGFANKAIOISSHIPAISHEDETUXIANG

POUXIJIEGUO

Average edge

JUNYUNBIANYUANSANBUHANSHU,JINGGUOISO12233GUIFANYINJIANDECHAOFENBIANLVSUANFAJISUAN。 MTFDEFULIYEBIANHUANDEDAOSHUJUNYUNBIANYUAN(JUEDUIZHI)。SHIJIANGEDEHANSHU。

MTF

Modulation Transfer Function = Spatial Frequency Response. SHIKONGJIANPINLVDEHANSHU。

CONG MTF HUOZHEJUNYUNBIANYUANYANHUADECANSHU

MTF50

KONGJIANPINLVJIANGLUODAO50%SHIDEPINLVSHIDEDIPINSHUJU。NENGGOUXUANZEBUTONGDEDANWEI。 Cycles/Pixel SHIZUIGENDIDE,QITADANWEIYEHENCHANGYONG。TONGCHANGMTF50(NoS) > MTF50(Shake) > MTF50(OIS). DANGZHEIGECIDIYOUBIANSHI,XUQIUSISUOZAODIANDEYINGXIANG。

R1090

DAIBIAO10-90% JUNYUNBIANYUANSHANGSHENGJIANGE

R2080

DAIBIAO20-80% JUNYUNBIANYUANSHANGSHENGJIANGE.

LMTF
L_MTF

XIANGGUANYUMTF50DEJIANGEZHANGDU,TONGCHANGSHIFENJIEJINYU R1090  LMTF (pixels) = 1/(2*MTF50 (C/P) ).

 

Image Stabilization DEPOUXIJIEGUO

 Image Stabilization MOKUAIDEZHUYAOMUDESHIJISUANFANKAIOISGONGYONGSHI,MINGXIDUDEGAILIANG。SUOYIZAIJISUANSHIBIXUSISUOJIGEWENTI

BINIJIEGUOZHIXIANXIANOISDEXIAOGUO,SUOYIWEIZHANDONGTUXIANGDEMOHUBIXUCONGQUCHU。

FANKAIHUOGUANBIOISGONGYONGDETUXIANGDAIBIAOLEZHANDONGDEXIAOGUO,SUOYIXUQIUXUANZEMINGXIDUZUICHADETUXIANG。

 Image Stabilization DEPOUXIJIEGUOZHUYAOSHIMTFDEBINI,QITADECANSHUZECONGCIYANHUAERLAI。YIXIASHIPOUXIJIEGUODEJIESHI。

 

MINGCIDINGYI

LMTF (L_MTF) ZHEIGECANSHUSHIYIGEJIANGEDEHANSHUYUR1090DEXIANGGUANXINGJIAOHAO。HAIJIDEMTFSHIFULIYEBIANHUANDEMOSHUMA(JUEDUIZHI),YIWEIZHEXIANGWEIXINXICENGJINGQUCHULE。GUANYUZHANDONGDETUXIANGLAISHUO,KENENGZAIBIANYUANCHANSHENGXIANZHUDEBUGUILVXIANXIANG(BUDUICHENG,XIETIDENG),KENENGSHIR1090 HUOR2080NIUQU,YUNYONGTAMENLAOKAOXINGJIANGLUO。ZHEIXIEBUGUILVSHIBIANYUANXIANGWEIDEYIJUBU,DUIMTFDEYINGXIANGYOUXIAN。XIATUXIANXIANLEZHEIYANGYIGEBIANYUAN。

LMTF = 1/(2*MTF50) (DANGMTF DEDANWEIWEICycles/PixelSHI). (LMTF = 1/MTF50 DANG MTF DEDANWEIWEI LW/PH.SHI) ,ZAIXIATUZHONG, LMTF = 1/(2*0.0399) = 12.5 pixels, YUR1090DESHUJUSHIFENJIEJIN。DANYOUSHIYEHUIYOULIWAI。

 

 

Average edge profile and MTF for a rather poorly behaved edge.
LMTF = 1/(2*MTF50) = 1/(2*0.0399) = 12.5 pixels, 接近于 R1090.

 

ZONGJIE— LMTF (ERBUSHI R1090 or R1080) CANSHUGENGHESHIYUJISUANFANGDOUXIAOGUO,DANGRANSHANGTUZHONGYEJICHULEYIQIESHUJU。

 

ZHANDONGHEWEIZHANDONGBIANYUANJIANGE

CONGNoS, Shake, and OIS SANLEITUZHONGDEDAODEBIANYUANZHANGDUJISUAN (R1090, R2080, and L_MTF) SHUJUCENGJINGZUGOUCHANMINGFANGDOUXIAOGUO。DANSHIHAINENGGOUDEDAOYIXIATUBIAO。

YIXIASHI18GEBIANYUANDEBINIJIEGUO。

边缘的比拟结果图

HONGSEJIALIANGQUYUDEPOUXIJIEGUO

YISHANGBIAOGEBAOKUOLEYIQIEDECONGYIGEBIANYUANDEDAODEOIS GainSHUJU,(YOU L_MTF, R1090, HE R1080YANSUANERLAI。

YIXIATUBIAOBAOKUOLEDUOGEQUYUDEPOUXIJIEGUO。DUOGEBIANYUANDEJUNYUNDEOIS gainSHUJUNENGGOUXIANXIANWEIZAI3DTUBIAOZHONG。NENGGOUQIEHUANXUANZEZHIXIANXIANCHENGDUBIANYUAN,ZHIXIANXIANCHUIZHIBIANYUANHUOTONGSHIXIANXIAN。

 

多个区域的剖析结果图
Multi-ROI plot of OIS_gain_L_MTF_div_dB (the preferred result), showing Metric drowdown menu.
(Only a limited number of metrics are currently available for the Multi-ROI and 3D plots.)

 

YIXIAWEI3DTUBIAODEXIANXIAN.

 

3D图表的显现图
3D plot of OIS_gain_L_MTF_div_dB (the preferred result)

 

SHOUJICAIPIAOWANG Save data.BAOGUANSHUJUANNIUNENGGOUJIANGJIEGUOBAOGUANWEICSV SHUJU。YIXIASHISHUTINGSHUOMING

Input file

1

 

 

 

 

Date run

24-Jan-2013 14:49:02

 

 

 

Image path

C:ImatestDataSFRplusMiscImage_Stabilizationnovibes.bmp

Title

novibes.bmp

 

 

 

 

Height Pxls

1200

Width Pxls

1600

Regions

18

(This is repeated for the second and (if included) third files.

Mean of Vertical edges

 

 

 

 

 

 

Shake-only

OIS-only

Delta

Fraction

%

dB gain

1. L_MTF_div

14.4877

9.8802

4.6075

0.6812

31.8824

3.3568

2. L_MTF_S1

11.7326

7.4965

4.2361

0.6333

36.6706

4.0072

3. L_MTF_S2

14.8671

10.4262

4.4409

0.7001

29.9929

3.1116

4. R1090_S1

12.4647

7.7476

4.7171

0.6213

37.8658

4.14

5. R1090_S2

15.6516

10.7458

4.9058

0.6875

31.2493

3.2607

6. R2080_S1

8.074

5.1292

2.9448

0.6354

36.4551

3.9865

7. R2080_S2

10.1915

7.1259

3.0657

0.6998

30.0222

3.1304

(This is repeated for Horizontal and H&V edges.)

 

 YIXIANEIRONGYINJIANLEImatestDESUANFAYUCIOA DC-X011-2012DEBUTONG。 

CIPA (Japan’s Camera & Imaging Products Association) RIBENZHAOXIANGJIYUTUXIANGCHANPINXIEHUISHOUJICAIPIAOWANGLEYIGECAOANBIAOZHUN。CIPA DC-X011-2012, Measurement and Description Method for Image Stabilization Performance of Digital Cameras (Optical Method)。ImatestRUANJIANZHONGDE Imatest Image Stabilization MOKUAISUANFA,YUCIPA DEBIAOZHUNYOUXIEBUTONG,HOUZHEYOUZHEBINIMINGXIANDEQUEXIAN。

Imatest YUNYONGSFRplusCESHIKA,ER CIPAYUNYONGGAOFANCHADEQIPANTUJIASHANGZHONGJIANHEIKUANGNEIDEJINGTAISHUIGUOTUXIANG,CIPADECESHIKAYUNYONGWANZHENGCHUIZHIHECHENGDUBIANYUAN,FANCHACHAOYUE20:1,RONGYICHANSHENGGUOBAOHEDEZHUANGKUANG,CONGERYINGXIANGZHANGLIANGJINGDU。 ERSFRplusCESHIKAGURANNENGGOUZHIZAOCHENGBUTONGDEFANCHA,DANWOMENDEYINJIANYUNYONG4:1DEFANCHA,ZHEIYESHIISO12233:2014GUIFANDEBIAOZHUN。

DC-X011 GUIFANMEIYOUTIJIMTF。MTFZAITUXIANGSHOUJICAIPIAOWANGZHONGYONGYUZHANGLIANGMINGXIDUCENGJINGYONGLEJISHINIAN,ERDC-X011ZHISHICAIYONGLE10-90% BIANYUANSHANGSHENGJIANGEZHEIGECANSHU,XIANGBINIERYANWENDINGXINGJIAOCHA。 WANZHENGCHUIZHIHUOCHENGDUDEBIANYUANYERONGYICHANSHENGXIANGWEIQUYANGCUOWU,ZHEIYESHIWEISHENME2014BANDEISO12233GUIFANCAIYONGLE5DUXIEBIANZUOWEICESHITUANDEYUANYOU。LINGWAICIPAGUIFANQINGQIUPAISHEDETUXIANGGUOYUDUO,LIRUBUZHANDONGDETUXIANGXUQIUYOU10ZHANG(§4-4-1),ERBINGMEIYOUCHANMINGQUZUIHAO、ZUIHUAIHAISHIJUNYUNZHI。DUIXIEBIANCESHIKALAISHUO,ZHENGCHANGDEPAISHEZHIXUQIUYIZHANGJIKE。

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