8K Extremely High Resolution Camera System
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The document discusses an 8K resolution camera system. It describes two methods for creating 8K images - a four sensor imaging method that uses separate sensors for red, blue, green 1, and green 2 light, and a three 33-megapixel CMOS sensor method. It provides details on the specifications and components of the 8K camera, benefits of 8K format including higher image quality, and trials of distributing 8K digital cinema content over networks.
8K Extremely High Resolution Camera System
- 1. 8K EXTREMELY HIGH RESOLUTION CAMERA BY, PREJITH PAVANAN, S7 ECE Presented By: Prejith Pavanan S7 ECE Seminar 1 Guide: Ramya S Kumar Asst Prof Dept Of ECE
- 2. INTRODUCTION Digital camera: utilizes high speed optical networks. transfers super high definition (SHD) images. Current transfer services offer high definition (HD) quality video. An extra high quality 8k format enables a realistic telepresence. Combined with special tools such as video editing systems. Realizes effective remote collaboration for business work spaces. 2
- 3. WHAT IS 8K? 8k denotes a very specific display resolution of 7680*4320 pixels. 8k refers to any display resolution that has roughly 7000 horizontal pixels. An additional feature : 2k resolution data can easily be extracted from 8k resolution data. 3
- 4. 8K IMAGING SYSTEM Developed for use in next generation TV broadcasting systems. Two methods of 8k camera systems : a) Four Sensor Imaging Method . b) Three 33-MPIXEL image sensors. 4
- 5. FOUR SENSOR IMAGING METHOD Meets the practical demands for the prototype camera systems. To obtain high resolution and high quality pictures uses: two image sensors for sensing green light. one sensor for red light. one for blue light. 5
- 6. STRUCTURE OF COLOR SEPARATION PRISM Incident light split into four: two green. one red. one blue (GGRB). Send to respective image sensors. A half mirrored beam splitter inserted. Spatially offset the pixels of the two green sensors. 6
- 7. PIXEL SPATIAL SAMPLING PATTERN AND NYQUIST DOMAIN IN 4SENSOR IMAGING SYSTEM G2 sensor is shifted to the G1 sensor . Positions of the R & B sensors are shifted horizontally and vertically to the G1 sensor. 7
- 8. FOUR SENSOR METHOD ADVANTAGES DISADVANTAGES Relatively high sensitivity. Maintains a high dynamic range. Reduces the cost of sensors to a great extent. Increases transfer capacity. Widens the dynamic range. Improves the blooming characteristics. Increases the power consumption. Increases the size of the camera by the use of more than one sensor. 8
- 10. THREE 33-MPIXEL CMOS IMAGE SENSOR Consumes relatively more power. Has a high volume of signal processing devices. Configuration is divided into the camera head and CCU(camera control unit). The camera head has: image sensors. head boards for driving the sensors. a signal transmission interface for transmitting data to the CPU. 10
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- 13. HDTV frequency: base frequency required for transmitting the SHV signal. SHV signal :divided into 24HD video signals per color. A total of 72HD video signals. Transmitted via the signal transmission interface and cable. CCU: receives the SHV signal. converts them back from 72HD signal. Signal processor performs typical camera signal processing. 13
- 15. 8K FORMAT A new resolution standard. Designed for digital cinema and computer graphics. Advantages: a) Higher image definition quality. b) More detailed picture. c) Faster action. 15
- 16. PIXEL DENSITIES 1920 * 1080 pixels referred to as 2k. 4096 * 2160 pixels referred to as 4k. 7680 * 4320 pixels referred to as 8k. 16
- 17. TRIAL OF NETWORK DISTRIBUTION OF 8K DIGITAL CINEMA Manages cinema style license information. Delivers digital cinema contents in a timely manner. Handles the bulk content data of DCP (200300GB per content ) reliably. 17
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- 19. 8k (16 x HD Ultra HD 2) Progressive Higher Frame 1919 The Staircase To Quality Heaven Transition Immersive Quality analogue to digital DIGITAL Standard TV 625 –lines Transition 4k (Ultra HD1) 8k Ultra Transition to 1080p/50 (full HD) 4k SDTV to HDTV HD Legacy HDTV 1080i/25 & 720p50 Stereo 3DTV two ½ HD images Master Format 1080p/50 Progressive 3DTV Two normal HDTV images ? Progressive Higher Frame rate? More colours? 3DTV Two normal HDTV images HDTV rate? More colours? Higher Contrast? 3DTV Multiview ? 1990s 2004 2011 ….2013…. …2018
- 20. CONCLUSION Development of the SHD imaging system: replacement of film cinema with digital camera. Digital cinema: will utilize movie content delivery via optical networks soon. needs only bulk file transfer. ODS: utilizes the networks for real time data transfer. One way streaming. A need to reduce the transmission latency while preserving 8k/2k flexibility and stability. 20
- 21. REFFERENCE S. A. Stough and W. A. Hill, ‘‘High-performance electro-optic camera prototype,’’ Soc. Motion Picture Television Eng. J., vol. 110, pp. 140–146, Mar. 2001. N. Narita, M. Kanazawa, and F. Okano, ‘‘Optimum screen parameters for ultrahigh definition and wide-screen image systems: Study of screen aspect ratios and maximum pixels with still images,’’ J. Inst. Television Eng. Jpn., vol. 56, no. 3, pp. 437–446, 2002. M. Kanazawa, K. Mitani, K. Hamasaki, M. Sugawara, F. Okano, K. Doi, and M. Seino, ‘‘Ultrahigh-definition video system with 4000 scanning lines,’’ in Proc. Int. Broadcast. Conv. Conf., 2003, pp. 321–329. M. Sugawara, K. Mitani, T. Saitoh, and Y. Fujita, ‘‘Four-chip CCD camera for HDTV,’’ Proc. SPIEVInt. Soc. Opt. Eng., vol. 2173, pp. 122–129, 1994. K. Mitani, M. Sugawara, H. Shimamoto, T. Yamashita, and F. Okano, ‘‘Ultrahigh-definition color video camera system with 8 K 4 K,’’ J. Electr. Imaging, vol. 17, no. 2, Apr.–Jun. 2008, 023014. M. Kanazawa, K. Hamada, and F. Okano, ‘‘Color error from RGB-stripe pixel structure,’’ J. Soc. Inf. Display, vol. 11, no. 2, pp. 387–393, 2003. 21
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