R. Talluri, K. Oehler, T. Bannon, J. D. Courtney, A. Das, and J. Liao, "A robust, scalable, object-based video compression technique for very low bit-rate coding," IEEE Trans. Circuits Syst. Video Technol., vol. 7, pp. 221--233, Feb. 1997.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....with the distortion measure of either MSE or MAE. After motion compensation, the arbitrary shape wavelet transform (ASWT) along with embedded coding is applied for only the unsuccessfully predicted (motion failure) region. This type of conditional replenishment technique is also considered in [5], where the motion failure classification is performed using a variance based approach together with ad hoc thresholds. The R D optimal classification of the failure region performed jointly with motion estimation is the key difference between the proposed coder and that of [5] Embedded coding ....

....also considered in [5] where the motion failure classification is performed using a variance based approach together with ad hoc thresholds. The R D optimal classification of the failure region performed jointly with motion estimation is the key difference between the proposed coder and that of [5]. Embedded coding enables the proposed coder to reach exactly a rate or distortion constraint. Experiments demonstrate about 0.2 1.3 dB PSNR gain as well as an improved visual quality can be achieved over MPEG 2 TM5 and H.263 TMN5 over a wide range of bit rates. This paper is organized as ....

R. Talluri, et. al., "A Robust, Scalable, Object-Based Video Compression Technique for Very Low Bit-Rate Coding, " Trans. Circuits Syst. Video Technol., vol. 7, No. 1, pp. 221-233, 1997.

....is high since actual coding is performed to calculate the R D characteristics. This paper focuses on the type II problem with a motion compensated embedded wavelet coder. Embedded wavelet coders provide excellent still image coding [4] and are also used in some of the MPEG 4 core experiments [5]. In addition to providing an excellent R D tradeoff, the embedding property allows the truncation of the bit stream at any point according to either a rate or distortion constraint. The implicit quantization with the embedded coder greatly simplifies the rate control problem because the control ....

R. Talluri, et. al., "A Robust, Scalable, ObjectBased Video Compression Technique for Very Low Bit-Rate Coding," Trans. Circuits Syst. Video Technol., vol. 7, No. 1, pp. 221-233, 1997.

....Huffman coding scheme. Splines: Average bit rates of 0.88 bbp were achieved in [18] with third order B spline curves that approximated boundaries with a maximum distortion of 1.0 pixels. Because of the iterative approach the results are not unique nor optimal and depend on the initial curve. In [19] regions in a frame that contain motion were first segmented, and then lossy encoded with either macro blocks for a coarse representation or with Catmull Romm splines for a more accurate object shape representation. In this paper, we approximate boundaries with quadratic B splines with a method ....

R. Talluri, K. Oehler, T. Bannon, J. D. Courtrey, A. Das, and J. Liao, "A robust, scalable, object-based video compression technique for very low bit-rate coding," IEEE Transactions on Circuits and Systems for Video Technology, vol. 7, pp. 221--233, Feb. 1997.

....levels [5] 13] 16] 21] in one or more channels. All these methods, however, result in significant overhead in the total bit rate or increased encoder complexity. Error control and detection schemes involve use of forward error correction (FEC) or Reed Solomon (RS) coding decoding [16] [18], 22] 23] or use of the video specific AAL protocol [4] 5] 13] in ATM networks. Such error correction schemes, though, add redundancy to the bitstream. In order to reduce such redundancy, error resilient entropy coding (EREC) methods have been used instead [10] 16] 21] 24] 25] At ....

....[16] 26] Even when either or both of the first error resilience methods are employed, some errors may still remain uncorrectable (commonly known as residual errors) In such cases, error resilience methods belonging to the third category are employed. Forcing the decoder to resynch [5] 7] [18], 27] 29] before the next resynchronization point in the bitstream might lead to correct decoding of part of otherwise lost frame area. Error concealment (EC) methods attempt to reconstruct lost areas by exploiting spatial and or temporal redundancy. They are distinguished to spatial, temporal ....

R. Talluri, K. Oehler, T. Bannon, J.D. Courtney, Ar. Das, and J. Liao, "A robust, scalable, object-based video compression technique for very low bit-rate coding", IEEE Trans. on Circuits and Systems for Video Technology, vol. 7, no. 1, pp. 221--233, 1997.

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R. Talluri, K. Oehler, T. Bannon, J. D. Courtney, A. Das, and J. Liao, "A robust, scalable, object-based video compression technique for very low bit-rate coding," IEEE Trans. Circuits Syst. Video Technol., vol. 7, pp. 221--233, Feb. 1997.

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Raj Talluri, Karen Oehler, Thomas Bannon, Jonathan D.Coutney, Arnab Das, and Judy Liao, "A Robust, Scalable, Object-Based Video Compression Technique for Very Low Bit-Rate Coding" IEEE Tr. On Circuits and Systems For Video Technology, Vol.7, No. 1, February 1997

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R. Talluri, K. Oehler, T. Bannon, et al., "A robust, scalable, object-based video compression technique for very low bit-rate coding," IEEE Trans. Circ. Sys. Video Tech. 7, pp. 221--233, Feb. 1997.

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