Gvbb Holdings S.a.r.l

Other

Yousuke Takada

Tomonori Matsuzaki

A system and method that maximizes tracking speed of an object in a sequence of images by selecting a technique for tracking the object independently for each frame in a video. The system includes an object feature detector that detects object features in a reference frame of the video and a feature comparator that determines a number of object features in each frame in the sequence of images that match the detected object features in the reference frame. Moreover, a tracking pattern selector selects the type of object tracking to track the object in the current frame based on the determined matched object features between the reference frame and the current frame of the video.

System and method of hybrid tracking for match moving

In an audio encoding system that divides frames generated from input signals into multiple scale factor bands and that encodes each of the scale factor bands by using a scale factor, the invention provides a rate control apparatus that performs rate control based on an NMR, the rate control apparatus comprising an NMR determination unit that determines an NMR that does not exceed a target rate by a binary search; and a scale factor determination unit that determines, by a binary search, the largest scale factor corresponding to the NMR determined by the NMR determination unit and a rate. Each time the NMR determination unit selects an NMR candidate value that acts as a candidate when the NMR determination unit searches for an NMR by a binary search, the scale factor determination unit determines the scale factor corresponding to the NMR candidate value.

Rate controller, rate control method, and rate control program

A decoding apparatus () is disclosed which includes: a storing means () for storing encoded audio signals including multi-channel audio signals; a transforming means () for transforming the encoded audio signals to generate transform block-based audio signals in a time domain; a window processing means () for multiplying the transform block-based audio signals by a product of a mixture ratio of the audio signals and a first window function, the product being a second window function; a synthesizing means () for overlapping the multiplied transform block-based audio signals to synthesize audio signals of respective channels; and a mixing means () for mixing audio signals of the respective channels between the channels to generate a downmixed audio signal. Furthermore, an encoding apparatus is also disclosed which downmixes the multi-channel audio signals, encodes the downmixed audio signals, and generates the encoded, downmixed audio signals.

Decoding apparatus, decoding method, encoding apparatus, encoding method, and editing apparatus

A stream combining apparatus is provided, comprising an input unit that receives the input of first group access units and second group access units from two streams that are generated by overlap transform; a decoder that generates group frames by decoding the group access units and that generates group frames by decoding the group access units; and a combining unit that uses first group frames and second group frames as a frame of reference for the access units, that decodes the frames, that performs selective mixing to generate mixed frames, that encodes said mixed frames, that generates a prescribed number of group access units, and that joins two streams, using a prescribed number of group access units as a joint such that the access units adjacent to each other on the boundary between the two streams and a prescribed number of group access units are stitched so that the information for decoding the same common frames is distributed.

Audio stream combining apparatus, method and program

It is an object of the present invention to provide an image encoding apparatus, an image encoding method, and an image encoding program, which can homogenize image quality of an image as a whole without lowering encoding efficiency, being operable at high speed, and reduce the size of circuit scale by performing macroblock shuffling without changing slice structure. Provided is an image encoding apparatus, including: a shuffling portion which collects and shuffles a plurality of macroblocks constituting image data from respective positions within an image; an encoding portion which performs space-frequency transform and entropy encoding on the plurality of macroblocks collected and shuffled by the shuffling portion, as a base unit; and a rate control portion which controls the encoding portion to adjust the rate of the plurality of macroblocks after the encoding.

Image encoding apparatus, image encoding method, and image encoding program

It is an object of the present invention to provide an encoding method, an encoding device, and an encoding program for encoding an interlaced image in a simple and effective manner. The encoding method includes: a frequency conversion step (s) of converting the interlaced image to coefficients of frequency domain having predetermined frequency ranges in a vertical direction and a horizontal direction, respectively; and a weighting step (s) of weighting the coefficients of frequency domain for each frequency band. In the weighting step, a weighting factor used for weighting a coefficient of a frequency band exceeding a predetermined frequency in the vertical direction is substantially equal to or larger than a weighting factor used for weighting a coefficient in a frequency band exceeding the predetermined frequency in the horizontal direction.

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Kobe, Japan

Yousuke Takada