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Image Compression With Discrete Cosine Transforms Midterm Report – (11/02/99) David Oltmanns Delayne Vaughn John Hill.

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Presentation on theme: "Image Compression With Discrete Cosine Transforms Midterm Report – (11/02/99) David Oltmanns Delayne Vaughn John Hill."— Presentation transcript:

1 Image Compression With Discrete Cosine Transforms Midterm Report – (11/02/99) David Oltmanns Delayne Vaughn John Hill

2  Modification to original plan  Results/partial results obtained  Updated Time-chart  Difficulty Levels  References Contents Image Compression With Discrete Cosine Transforms

3  Hardware  Software Modifications Use serial interface – to transfer image from the PC to the FPGA.

4  Hardware  Software Modifications

5  Hardware  Software Results Original QuickCam Interface Using Basic Stamp 3

6  Hardware  Software Results Serial Interface using 16550 UART

7  Hardware  Software Results Image Compression using Discrete Cosine Transforms

8  Hardware  Software Results Quantization Factor of 15

9  Hardware  Software Results Quantization Factor of 75

10  Hardware  Software Results Quantization Factor of 255

11 Timeline Changes Week Three Sept. 12 - 18 Research DCT and sub-systems Begin Proposal Week FourSept. 19 - 25 Finalize Proposal Present Proposal (Sept. 21) Begin Software Compression Algorithm Week FiveSept. 26 - Oct. 2 Finish Software Compression Algorithm Begin Software Decompression Algorithm Integrate Compression/Decompression Software Components Begin Serial Interface Module Week Six Oct. 3 - 9 Finish Software Compression Algorithm Continue Serial Interface Module Begin SRAM Control Module Biweekly Report 1 (Oct. 7) Week SevenOct. 10 - 16 Finish Serial Interface Module (FPGA Change) Finish SRAM Control Module Begin FPGA Compression Module Week EightOct. 17 - 23 Finish FPGA Compression Module Integrate SRAM, Serial Interface, and Compression Modules Biweekly Report 2 (Oct. 21) Week NineOct. 24 - 30 Begin FPGA Decompression Module Begin Camera Interface Begin Mid-term Presentation Week TenOct. 31 - Nov. 6 Finish FPGA Decompression Module Mid-term Presentation (Nov. 4) Integrate Decompression and Compression Modules Week ElevenNov. 7 - 13 Finish Camera Interface Integrate Camera Interface with Existing Modules Week TwelveNov. 14 - 20 Existing Modules Benchmark: Camera Interface with Existing Modules Biweekly Report 3 (Nov. 18) Week ThirteenNov. 21 - 27 Begin Final Presentation Thanksgiving Week FourteenNov. 28 - Dec. 3 Overflow (Unforeseen Tasks) Finalize Presentation Week FifteenDec. 4 - 10 Final Presentation (Dec. 7) ON HOLD CHANGE ON HOLD

12 Difficulty Levels ( 1- very difficult, 4- very easy)  Project Implementation  Hardware (BS2)3  Hardware (Serial)2  Algorithm (Software)2  Algorithm (Verilog)3  Team Coordination  Scheduling Meetings 3  Group Work 4  Lab Support 3

13 N. Ahmed, T. Natarajan, and K.R. Rao, "Discrete cosine transform," IEEE Trans. Comput., vol. C-23, pp. 90-93. Jan. 1974. K. Aldrich, D. Brandenberger, C. Chilek, and B. Raymond, "Sign Language Aquisition and Recognition System," www.cs.tamu.edu/course- info/cpsc483/common/99b/g3/Final.htm (Sept. 20, 1999) M. Berger, J. Curtin, T. Griffin, A. King, M. Nordfelt, and J. Whitted, "Portable Digital Compression/Decompression System," www.cs.tamu.edu/course- info/cpsc483/common/99a/g5/g5.html (Sept. 20, 1999) J. Berglund, R. Cuaycong, W. Day, A. Fikes, and K. Shah, "Autonomous Tracking Unit," www.cs.tamu.edu/course- info/cpsc483/common/99a/g1/g1.html (Sept. 20, 1999) N.I. Cho and S.U. Lee, "Fast algorithm and implementation of 2-D discrete cosine transform," IEEE Trans. CAS, Mar. 1991, pp. 297- 305 cosine transform," IEEE Trans. CAS, Mar. 1991, pp. 297- 305 N.I. Cho and I.D. Yun, and S.U. Lee, "On the regular structure for the fast 2D DCT algorithm," IEEE Trans. CAS, Apr. 1993, pp.259- 266 S.C. Chan and K.L. Ho, "A new 2D fast cosine transform algorithm," IEEE Trans. SP, Feb. 1991, pp.481-485 H.S. Hou, "A fast recursive algorithm for computing the discrete cosine transform," IEEE Trans. ASSP, Oct. 1987, pp. 1455-1461. C.W. Kok, "Fast Algorithm for Computing 2D Discrete Cosine Transform," Unpublished article, pp. 1-4 R. Mahapatra, A. Kumar, and B. Chatterji, "Performance Analysis of 2-D Inverse Fast Cosine Transform Employing Multiprocessors," Article, pp. 1-31 http://dmsun4.bath.ac.uk/dcts/fastdct.html (location for DCT info 10/2/99) http://bbs.galilei.com/libs/tools.htm (location for Huffman encoding info. 10/2/99) Past Project Groups http://www.cs.tamu.edu/course-info/cpsc483/common/ Sign Language Acquisition and Recognition System Sign Language Acquisition and Recognition System Portable Digital Compression/Decompression System Portable Digital Compression/Decompression System References Image Compression With Discrete Cosine Transforms


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