Related Manuals for Singmai Electronics SM03
Summary of Contents for Singmai Electronics SM03
- Page 1 SM03 NTSC/PAL/SECAM Video Enhancer User Manual Revision 0.1 March 2024 SM03 User Manual Revision 0.1 Page 1 of 38...
-
Page 2: Revisions
Revisions Date Revisions Version 05-03-2024 First draft SM03 User Manual Revision 0.1 Page 2 of 38... -
Page 3: Table Of Contents
Figure 13 Edge Enhance menu....................... 14 Figure 14 Proc Amp menu........................15 Figure 15 Setup menu..........................16 Figure 16 SM03 block diagram....................... 17 Figure 17 PAL video frequency response....................19 Figure 18 NTSC Comb failures........................ 20 Figure 19 'Dot crawl', left, caused by failing to detect when the comb filter fails. - Page 4 Figure 29 Y (Luma) channel noise reduction adaptation tables ............. 28 Figure 30 C (Chroma) noise reduction adaptation values..............29 Figure 31 SM03 noise reduction - image intensified camera..............29 Figure 32 Histogram equalisation......................30 Figure 33 Histogram Equalisation block diagram................... 31 Figure 34 Histogram equalized image.
-
Page 5: Introduction
1. Introduction SM03 is a video processor and enhancer for standard definition video (PAL, NTSC or SECAM). SM03 accepts analogue NTSC-M, PAL, SECAM, NTSC-443 or PAL-60 encoded video (Composite or Y/C format) which it decodes to a component serial digital interface (SDI) output. Decoding is performed using a proprietary 3D comb filter to maintain the best detail with the lowest artifacts. -
Page 6: Quick Start Guide
Connect the 12VDC jack from the adaptor to the +12V ‘Power In’ socket on the SM03. To turn on the SM03 push the front panel ‘Adjust’ control. After a short delay the front panel LCD display should display a logo, followed by a menu (see Figure 6) and the rear panel ‘Power’ LED should light. -
Page 7: Figure 3 Y/C Cable
In’ input. Figure 3 Y/C cable. The output of the SM03 is SDI (serial digital interface), which is a SMPTE (Society of Motion Pictures and Television Experts) standard (SMPTE-259M). The video decoder of the SM03 separates the composite video input (e.g. NTSC) into its component parts – the synchronizing signals, the luma (brightness) signal and the colour components (called Cb and Cr in SDI terminology). -
Page 8: Figure 4 Magewell Sdi To Usb Adaptor
$50. (https://www.blackmagicdesign.com/products/microconverters). Connect the SDI output of the SM03 to the SDI input of the module and the SDI lock light should light. Then connect the HDMI output of the module to your TV. No setup is necessary. -
Page 9: Sm03 Control
3. SM03 Control The SM03 is controlled via the front panel encoder/switch. At switch-on the top-level menu options are shown (see Figure 6). Rotate the ‘Adjust’ control to highlight the option you wish to adjust. Figure 6 Top Level Menu To view the sub-menu options briefly push the ‘Adjust’... -
Page 10: Table 1 Comb Failure Colour Settings
Auto PAL/NTSC is the default setting. The ‘Comb Mode’ menu allows you to control the SM03 comb filter. The comb filter may be set to a notch filter (a band reject filter centred on the subcarrier frequency), a 3-line comb filter, or a symmetric 3D frame comb. -
Page 11: Noise Reduction
To select the Noise Reduction menu, select ‘Noise Reduction’ from the top-level menu and press the ‘Adjust’ control. The menu shown in Figure 10 will appear. To exit the noise reduction menu, select ‘Exit’ and press the ‘Adjust’ control. SM03 User Manual Revision 0.1 Page 11 of 38... -
Page 12: Synchroniser
To select the Synchroniser menu, select ‘Synchroniser’ from the top-level menu and press the ‘Adjust’ control. The menu shown in Figure 11 will appear. To exit the synchroniser menu, select ‘Exit’ and press the ‘Adjust’ control. SM03 User Manual Revision 0.1 Page 12 of 38... -
Page 13: Contrast Enhance
‘Adjust’ control. The menu shown in Figure 12 will appear. Rotate the Adjust control to switch contrast enhance on or off. To exit the menu, push the Adjust control. A fuller description of the contrast enhancement may be found in Chapter 8. SM03 User Manual Revision 0.1 Page 13 of 38... -
Page 14: Edge Enhance
To bring up the Procamp menu, select ‘ProcAmp’ from the top-level menu and press the ‘Adjust’ control. The menu shown in Figure 14 will appear. To exit the ProcAmp menu, select ‘Exit’ and press the ‘Adjust’ control. SM03 User Manual Revision 0.1 Page 14 of 38... -
Page 15: Setup
To bring up the Setup menu, select ‘Setup’ from the top-level menu and press the ‘Adjust’ button. The menu shown in Figure 15 will appear. To exit the Setup menu, select ‘Exit’ and press the ‘Adjust’ button. SM03 User Manual Revision 0.1 Page 15 of 38... -
Page 16: Figure 15 Setup Menu
The Vertical Blanking Interval (VBI) of the video can be used to convey other information such as video test signals (VITS) or closed caption. Usually this information is blanked but if VBI is set to Pass the vertical blanking lines are passed unprocessed through the SM03 to the SDI output. SM03 User Manual Revision 0.1... -
Page 17: Technical Overview
The notched CVBS signal is also sent to a sync pulse generator, which separates the synchronizing signals from the CVBS video and generates all the timing signals required of the SM03. This block also creates the control signal for the sample rate converter. - Page 18 ADC running at 48kHz. The audio is passed through an adjustable delay (to compensate for lip-sync issues) and inserted into the SDI output. Control of the SM03 is via an LCD display which is controlled via an 8-bit microprocessor, also within the main FPGA.
-
Page 19: Comb Filters
5. Comb Filters At the heart of the SM03 video decoder is a comb filter. This chapter describes the advantages (and disadvantages) of a comb filter. The analogue television broadcast system (NTSC, PAL or SECAM) was designed as a complete system, from the psycho-visual compromises made at the encoding (camera) end through to the persistence of the phosphor on the cathode ray tube (CRT) in your living room. -
Page 20: Figure 18 Ntsc Comb Failures
As mentioned, one of the issues with these artifacts is that they are not static and cannot be easily removed with further SM03 User Manual Revision 0.1 Page 20 of 38... -
Page 21: Figure 20 The Left Image Shows A Zone Plate With A Line Comb Filter. The Colours In The Image Are Cross
(see Figure 21). Note that because of the fine structure of the check shirt the line comb filter produces, not only artefacts (see the woman’s shirt colour) but also a softer image. SM03 User Manual Revision 0.1 Page 21 of 38... -
Page 22: Figure 21 Line Comb Filter (Left): Frame Comb Filter (Right)
Figure 21 Line comb filter (left): frame comb filter (right). Another example of the improvement of a frame comb filter over a line comb filter is shown in Figure Figure 22 Comb filter comparisons. SM03 User Manual Revision 0.1 Page 22 of 38... -
Page 23: Figure 23 Comb Failure Detection
Figure 23 shows a fast moving still image from the movie Kung Fu Panda. The image is false coloured to show the various comb modes automatically selected by the SM03. The blue colour is the low pass filter mode, and you can see that for the majority of the image, despite the motion, we are able to comb the image in one the three modes the SM03 has available (frame, field and line combs), thereby ensuring the lowest artefacts with the highest resolution. -
Page 24: Median Filter
The SM03 uses an adaptive median filter to offer the best compromise between preserving detail in the image and reducing noise. Two median filters are run on the image, one a 3x3 pixel kernel, the other a 5x5 pixel kernel. -
Page 25: Figure 25 Median Filter: Original Image
Figure 25 Median filter: original image. Figure 26 Median Filter: 3x3 filter kernal size. SM03 User Manual Revision 0.1 Page 25 of 38... -
Page 26: Figure 27 Median Filter: 7X7 Kernal Size
Figure 27 Median Filter: 7x7 kernal size. SM03 User Manual Revision 0.1 Page 26 of 38... -
Page 27: Recursive Noise Reduction
7. Recursive Noise reduction A simplified block diagram of the SM03 video noise reducer is shown in Figure 28. Figure 28 Video noise reducer block diagram. This noise reducer architecture is a rearrangement of the following equation: = k*Y + (1-k)*Y... -
Page 28: Figure 29 Y (Luma) Channel Noise Reduction Adaptation Tables
Curve(60,0.3) Curve(56,0.3) Curve(48,0.3) Curve(40,0.3) Curve(32,0.3) Curve(24,0.3) Curve(80,0.7) Curve(72,0.7) Curve(60,0.7) Curve(56,0.7) Curve(48,0.7) Curve(40,0.7) Curve(32,0.7) Curve(24,0.7) Curve(80,0.5) Curve(72,0.5) Curve(60,0.5) Curve(56,0.5) Curve(48,0.5) Curve(40,0.5) Curve(32,0.5) Curve(24,0.5) Figure 29 Y (Luma) channel noise reduction adaptation tables SM03 User Manual Revision 0.1 Page 28 of 38... -
Page 29: Figure 30 C (Chroma) Noise Reduction Adaptation Values
For conditions where the noise is very high and the motion adaptation is not required a manual k factor may be chosen (see Figure 31, a screen capture of an image-intensified – night vision - camera). Figure 31 SM03 noise reduction - image intensified camera. SM03 User Manual Revision 0.1... -
Page 30: Histogram Equalisation
0.25. Histogram equalization stretches out the histogram so that the image occupies the full range of intensities. Figure 32 Histogram equalisation. A simplified block diagram of the histogram equalization (contrast enhancement) module is shown in Figure 33. SM03 User Manual Revision 0.1 Page 30 of 38... -
Page 31: Figure 33 Histogram Equalisation Block Diagram
Figure 34 shows an image of a tunnel where the dark walls are rendered invisible (left side image) by the bright exit to the tunnel. The right side of the image shows the wall details after histogram equalization. SM03 User Manual Revision 0.1 Page 31 of 38... -
Page 32: Figure 34 Histogram Equalized Image
Figure 34 Histogram equalized image. SM03 User Manual Revision 0.1 Page 32 of 38... -
Page 33: Specification
< -55dB unified weighting (Y channel, noise reduction off). Audio input: 316mV pk-pk (0dB gain setting) into 47k. 24-bit sampling at 48kHz. Output: SDI format (SMPTE-259M). Latency: 40-80ms. Operating temperature: 0 – 40 degC. SM03 User Manual Revision 0.1 Page 33 of 38... -
Page 34: Appendix A: Ac-Dc Adaptor
Appendix A: AC-DC adaptor The specification for the supplied AC-DC adaptor (CUI SMI36-12-V-P6) is shown in Figures 35-39. Figure 35 Power supply specification – Page 1. SM03 User Manual Revision 0.1 Page 34 of 38... -
Page 35: Figure 36 Power Supply Specification
Figure 36 Power supply specification – Page 2. SM03 User Manual Revision 0.1 Page 35 of 38... -
Page 36: Figure 37 Power Supply Specification
Figure 37 Power supply specification – Page 3. SM03 User Manual Revision 0.1 Page 36 of 38... -
Page 37: Figure 38 Power Supply Specification
Figure 38 Power supply specification – Page 4. SM03 User Manual Revision 0.1 Page 37 of 38... -
Page 38: Figure 39 Power Supply Specification
Figure 39 Power supply specification – Page 5. SM03 User Manual Revision 0.1 Page 38 of 38...
Need help?
Do you have a question about the SM03 and is the answer not in the manual?
Questions and answers