1
Eifrig Robert O, Chen Xuemin, Luthra Ajay: Prediction and coding of bi-directionally predicted video object planes for interlaced digital video. Gen Instrument, September 9, 1998: EP0863674-A2 (190 worldwide citation)

A system for coding of digital video images such as bi-directionally predicted video object planes (B-VOPs) (420), in particular, where the B-VOP and/or a reference image (400,440) used to code the B-VOP is interlaced coded. For a B-VOP macroblock (420) which is co-sited with a field predicted macro ...


2
Hoogenboom Chris, Vuong Bao: Pixel interpolation filters for video decompression processor. Gen Instrument, May 15, 1996: EP0712249-A2 (111 worldwide citation)

A method and apparatus are disclosed for interpolating pixels (80) to obtain subpels for use by a video decompression processor. A prediction area (90) is defined from which subpels are necessary to decompress a portion of a video image. Instead of reading all of the pixels from the prediction area ...


3
Sekimoto Tadahiro: Pcm-tv system using a unique word for horizontal time synchronization. August 28, 1973: US3755624 (111 worldwide citation)

In a communication system for transmitting and receiving television information by means of digital codes, the horizontal sync pulses are transformed into a code word, thus leaving time slots in the transmitted waveform which are unoccupied by the digital picture information or the code word represe ...


4
Ngai Agnes Yee, Svec Ronald Steven: Half pel motion estimation method for b pictures. Ibm, October 2, 1996: EP0735769-A2 (108 worldwide citation)

Disclosed is a method of forming a bidirectionally coded picture, i.e., a B frame, from two reference pictures, e.g. I or P frame pictures. The method utilizes a single memory fetch of each reference picture, and interpolation of the estimated motion of each picture. This is accomplished by identify ...


5
Sekimoto Tadahiro: Pcm-tv system using a unique word for horizontal time synchronization. Communications Satellite Corporation, May 30, 1972: US3666888 (106 worldwide citation)

In a communication system for transmitting and receiving television information by means of digital codes, the horizontal sync pulses are transformed into a code word, thus leaving time slots in the transmitted waveform which are unoccupied by the digital picture information or the code word represe ...


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Azadegan Faramarz, Unno Hiroaki, Mimura Hideki, Kitamura Tetsuya: Video encoding method and system using a rate-quantizer model. Tokyo Shibaura Electric Co, November 13, 1996: EP0742674-A2 (85 worldwide citation)

A system and method for determining quantization level versus bit-rate characteristics of raw video signals in video frames during a pre-encoding phase for video technologies such as MPEG and MPEG-2. During a pre-encoding phase, various quantization levels are assigned to various parts of a frame, a ...


8
Eifrig Robert O, Chen Xuemin, Luthra Ajay: Motion estimation and compensation of video object planes for interlaced digital video. Gen Instrument, September 9, 1998: EP0863675-A2 (80 worldwide citation)

A motion estimation and compensation technique is provided for interlaced digital video such as video object planes (VOPs). Predictor motion vectors for use in differentially encoding a current field coded macroblock (700) are obtained using the median of motion vectors (MV1, MV2, MV3) of surroundin ...


9
Nagata Atsushi: Image coding method and image coding apparatus.. Matsushita Electric, February 3, 1993: EP0526163-A2 (80 worldwide citation)

In high efficiency coding of motion image signal in transmission or recording of the motion image signal, plural predict signals are determined by independently compensating a motion of reproduction signals of plural frames positioned before a frame to be coded. A linear combination of these predict ...


10
Murashita Kimitaka C O Fujitsu, Noda Tsugio C O Fujitsu Limite: Image data coding and restoring method and apparatus for coding and restoring the same.. Fujitsu, March 23, 1994: EP0588653-A2 (79 worldwide citation)

When encoding the continuous image by dividing the respective frames into a plurality of blocks, the image in the block in the present frame is compared with a corresponding image in the block in the same position of the reference frame and the amount of the changes of the predetermined image elemen ...