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Canon MLT (F) manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    Before using the instru ment, be sure to read th is manual thoroughly . Also, read the manuals of other instruments in this system. Keep the manual where it is easily accessible. User ’ s Manual ML T (F) CXDI Image Processing Sof tware[...]

  • Page 2

    Please Note 1. In no event will Canon be liable for direct or indirect consequential dam age arising out of the use of this product. Canon will not be liable for loss of image data due to any reason. 2. Please have this product inst alled by Canon repr esentative or distributor . 3. Canon reserve s th e rig ht to cha nge th e sp ec ifications of th[...]

  • Page 3

    Contents 1. Overview ................. ..................................................................... 1 1.1 About MLT (F) ............................... ........................................................ 1 1.2 Available Functions of ML T (F) ............................. ................................ 2 2. Edit Exposure Mode Setting[...]

  • Page 4

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  • Page 5

    Not ation Conventions Notation 1 In this manual, the name of bu tton is enclosed with a pair of brackets [ ], and the buttons that are selected in succession are connected with > to indicate the order . Example: On the Exposure screen, touch the followings: [SYSTEM] > [SETUP MENU] Operation: T ouch the SYSTEM button on the first screen, and t[...]

  • Page 6

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  • Page 7

    – 1 – 1. Overview 1.1 About ML T (F) NOTE: ML T (F) is supported by CXDI System Software V ersion 4.3 or later . The CXDI Image Processing Sof tware ML T (F) (called “ML T (F)” in this manual) is designed to extend the image processing function s provided with the CX DI series of Canon dig- ital radiography system (cal led “CXDI” in th [...]

  • Page 8

    1.Overview – 2 – 1.2 A vailable Functions of ML T (F) This manual describes the operating procedures of the following three image pro cessing func- tions that are available with ML T (F). For deta ils and information on other image processing functions, please refer to Operation Manual and Setup Guide. DWT*1 Edge Enhancement ( → P. 7 ) The DW[...]

  • Page 9

    Continued on the following page >> – 3 – 2. Edit Exposure Mode Settings The examples used in this chapter are the sc reens of CXDI System So ft ware versi on 6.3. 2.1 Procedures to Edit Exposure Mode 1 Display the Edit Ex posure Mode screen On the Exposure screen, touch the followings: [SYSTEM] > [EDIT EXPOSURE MODE] . Edit Exposure M [...]

  • Page 10

    2.Edit Exposure Mode Settings – 4 – 4 Select the Exposure Mode Make sure that [EDIT P ARA.] at the top-left is highlighted, and select the desired Expo- sure Mode. The EDIT P ARA. screen appears. EDIT P ARA. Screen (first page) 5 Display the next p age T ouch [NEXT P AGE] . EDIT P ARA. Screen (second p age) A vailability of Frequency Processing[...]

  • Page 11

    Continued on the following page >> 2.Edit Exposure M ode Settings – 5 – 6 Select ML T (F) FREQUENCY If ML T (F) FREQUENCY is not curren tly selected (in this case, the DWT ENHANCE. , DWT DEP , and DWT NOISE R. tabs are not disp layed), touch the Frequency Pro- cessing Mode button to open the window , then touch [ML T (F) FRE QUECY] . Freq[...]

  • Page 12

    2.Edit Exposure Mode Settings – 6 – 9 Save the p arameters T ouch [OK] . The window disp layi ng the following message appears: Save the chang ed paramete r . Then, touch [OK] . When Password is r equire d If the password is specified, a different messa ge is displayed in the window as follow s: Administrator’s authority is needed. Enter syst[...]

  • Page 13

    Continued on the following page >> 2.Edit Exposure M ode Settings – 7 – 2.2 Setting DWT ENHANCE. T ab 1 Set the DWT Edge Enhancement effective T ouch [EDGE ENHANCE.] to display the parameters. The appearance of the button switches over between the hig hlig ht (in whit e outline characters ag ainst a colored back- ground) and normal displa[...]

  • Page 14

    2.Edit Exposure Mode Settings – 8 – 3 Display the FREQUENCY BASE window T ouch the FREQUENCY BASE but ton to open the window . FREQUENCY BASE Window The types of Frequency Bases are classified into two kinds, and are indicated with the buttons in different colors respectiv ely as follows: The bar graph in the each bu tton shows the range of fre[...]

  • Page 15

    – 9 – 2.Edit Exposure M ode Settings 5 Display the DENSITY BASE window T ouch the DENSITY BASE button to open the window . DENSITY BASE Window If granularity is too coarse on the Low-Density Field as the result of the enhancement, the quality can be improved by sel ecting the Density Base that applie s weaker densit y enhancement to the area wh[...]

  • Page 16

    2.Edit Exposure Mode Settings – 10 – 2.3 Setting DWT DEP T ab 2.3.1 Setting DWT DEP for High-Density Field 1 Set the DWT DEP for the High-Density Field effective T ouch [HIGH DENS.] to display the parameters. The appearance of the button switches over between the highl ight (in white ou tline characters against a colored background) and normal [...]

  • Page 17

    Continued on the following page >> 2.Edit Exposure M ode Settings – 1 1 – 4 Set the DEP EFFECT p arameter of the High-Density Field T ouch the or button, and set the value within the range between 0 to 10. The value on the left is the setting saved p rev iously , and the value on th e right is the cur- rent setting. The value indicates th[...]

  • Page 18

    2.Edit Exposure Mode Settings – 12 – 2 Set the ST ARTING DENSITY parameter of the Low-Density Fie ld T ouch the or button, and set the value within the range between 0 to 30. If the paramet ers of the High-Densi ty Field are ef fective, this value cannot be set lower than the value of ST ARTING DENSITY of the High-Density Field ( → P. 1 0 ) .[...]

  • Page 19

    – 13 – 2.Edit Exposure M ode Settings 2.4 Setting DWT NOISE R. T ab 1 Set the DWT Noise Reduction effective T ouch [NOISE REDUCTION] to display the parameters. The appearance of the button switches over between the hig hlig ht (in whit e outline characters ag ainst a colored back- ground) and normal display each time you touch th e button. The [...]

  • Page 20

    – 14 – 3. QA Mode Settings The examples used in this chapter are the sc reens of CXDI System So ft ware versi on 6.3. 3.1 Procedures to Change Parameters Image processing of the exposure images with CXDI is called QA (Quality Assurance) Process- ing, and can be performed by adjusting the para meters on the QA Mode screen to optimize the exposur[...]

  • Page 21

    Continued on the following page >> 3.QA Mode Se ttings – 15 – 2 Select ML T (F) FREQUENCY If ML T (F) FREQUENCY is not curren tly selected (in this case, the DWT ENHANCE. , DWT DEP , and DWT NOISE R. tabs are not disp layed), touch the Frequency Pro- cessing Mode button to open the window , then touch [ML T (F) FRE QUECY] . Frequency Proc[...]

  • Page 22

    3.QA Mode Se ttings – 16 – 5 Save the new p arameters T o save new parameters as the default va lu es of the Exposure Mode (except opening from Study List), touch [SA VE P ARAM] . The w indow displaying the foll owing message appears: Are you sure you wa nt to change the default generator p arameters? Then, touch [YES] . 6 Close the QA Mode scr[...]

  • Page 23

    Continued on the following page >> 3.QA Mode Se ttings – 17 – 3.2 Changing DWT ENHANCE. T ab 1 Set the DWT Edge Enhancement effective T ouch [DWT EDGE EN HANCE.] to display the parameters. The appearance of the but- ton switches over between the highlight (in white outline character s against a colored background) and normal display each [...]

  • Page 24

    3.QA Mode Se ttings – 18 – 3 Display the MORE window T ouch [MORE] to open the window . MORE Window 4 Display the FREQUENCY BASE window T ouch the FREQUENCY BASE but ton to open th e window . For details of the FREQUENCY BASE parameter , refer to the step 3 in 2.2 Setting DWT ENHANCE. T ab ( → P. 8 ) . FREQUENCY BASE Window 5 Select the FREQU[...]

  • Page 25

    Continued on the following page >> 3.QA Mode Se ttings – 19 – 6 Display the DENSITY BASE window T ouch the DENSITY BASE button to open the window . For details of the DENSITY BASE param e ter, refer to the step 5 in 2.2 Setting DWT ENHANCE. T ab ( → P. 9 ) . DENSITY BASE Window Represent ation of the enha ncement degree on a bar graph A[...]

  • Page 26

    3.QA Mode Se ttings – 20 – 7 Select the DENSITY BASE p arameter T ouch the desired Density Bas e button. The parameter is selected for the Density Base, and the DENSITY BASE window is closed. 8 Set the settings valid, and close the MORE window T ouch [OK] . Represent ation of the enha ncement degree on a line graph After the Density Base is set[...]

  • Page 27

    – 21 – 3.QA Mode Se ttings . Switching the d isplay of the graph T ouch the graph area to switch over the Freque ncy Base Graph (bar graph) and Density Base graph (line graph). Actual processing shall not be performed unless the DWT Edge Enhancement is effective, although the graph i s displayed on the screen. Frequency Base Graph (Ba r Graph) [...]

  • Page 28

    3.QA Mode Se ttings – 22 – 3.3 Changing DWT DEP T ab 3.3.1 Changing DWT DEP for High-Density Field 1 Set the DWT DEP for the High-Density Field effective T ouch [HIGH DENS.] to display the parameters. The appearance of the button switches over between the highl ight (in white ou tline characters against a colored background) and normal display [...]

  • Page 29

    – 23 – 3.QA Mode Se ttings 3 Display the MORE window T ouch [MORE] to open the window . MORE Window 4 Set the HIGH WEIGHT p arameter T ouch the or button, and set the value within the range between 0 to 20. The value on the left is the setting saved p rev iously , and the value on th e right is the cur- rent setting. For details of the paramete[...]

  • Page 30

    3.QA Mode Se ttings – 24 – 3.3.2 Changing DWT DEP for Low-Density Field 1 Set the DWT DEP for the Low-Density Field effective T ouch [LOW DENS.] to display the parameters. The appearance of the button switches over between the highl ight (in white ou tline characters against a colored background) and normal display each time you touch the butto[...]

  • Page 31

    – 25 – 3.QA Mode Se ttings 3 Display the MORE window T ouch [MORE] to open the window . MORE Window 4 Set the LOW WEIGHT p arameter T ouch the or button, and set the value within the range between 0 to 20. The value on the left is the setting saved p rev iously , and the value on th e right is the cur- rent setting. For details of the parameter[...]

  • Page 32

    3.QA Mode Se ttings – 26 – 3.4 Changing DWT Noise R. T ab 1 Set the DWT Noise Reduction effective T ouch [NOISE REDUCTION] to display the parameters. The appearance of the button switches over between the hig hlig ht (in whit e outline characters ag ainst a colored back- ground) and normal display each time you touch th e button. The parameters[...]

  • Page 33

    Continued on the following page >> – 27 – 4. QA Parameters When ML T(F) frequency processing is select ed, the QA parameters (%IP_P ARAM%) in Anno- tation are displayed in the format below . n stands for the numeric value, ch aracter or symbol displayed on Annotation . 1 REX The parameter is displayed as follows: REXn If LUT is set to REX[...]

  • Page 34

    4.QA Parameters – 28 – ST ARING DENSITY (High-D ensit y and Low-Density Fields) DEP WEIGHT (High- Density and Low-Density Fields) 5 DWT Noise Reduction The parameters are displayed as follows: Nn ( EFFECT ) , n ( PROCESSING UPPER LIMIT ) If the DWT Noise Reduction is not effective, nothing is displayed. 6 LUT Parameters The parameters are displ[...]

  • Page 35

    – 29 – 4.QA Parameters 9 Suppress Grid Processing One of the following parameters is displayed: Z0 (No grid stripe is detected), Z1 (Grid stripes are suppressed), Z* (Processing is not determined yet) If the Grid Reduction Processing is no t effective, nothing is displayed. 10 High-Density Clipping Processing (HIGH IN. CLIPPING) One of the foll[...]

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    CANON INC. Medical Equipment Group 30-2, Shimomaruko 3-chome, Ohta-ku, T okyo, Japan T elephone: (81)-3-3758-2 1 1 1 CANON U.S.A., INC. CANON MEDICAL SYSTEMS 15955 Alton Parkway , Irvine, CA 92618-3616, U.S.A. T elephone: (1)-949-753-4 160 CANON EUROP A N.V . Medical Products Division Bovenkerkerweg 59-61, 1 185 XB Amstelveen, The Netherlands T ele[...]