Abstract:
The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
Abstract:
The present invention relates to a method and apparatus for encoding and decoding video information. The video information encoding method according to the present invention comprises: a step of performing a prediction on a current block; and a step of entropy-encoding the predicted information and transmitting the encoded information. The step of performing a prediction comprises: a step of acquiring motion information on a neighboring block from the neighboring block of the current block; and a step of determining motion information on the current block on the basis of the acquired motion information. The transmitting step also involves transmitting information required for the prediction of the current block. According to the present invention, the complexity of video compression and the quantity of transmitted information may be reduced.
Abstract:
An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/ decoding efficiency can be improved.
Abstract:
The present invention relates to a method and apparatus for encoding/decoding image using a motion vector. According to one embodiment of the present invention, an image-decoding method is provided. The image-decoding method comprises the following steps: clipping a motion vector of a reference picture with a predetermined dynamic range so as to generate a clipped motion vector; storing the clipped motion vector in a buffer; deriving a motion vector of a block to be decoded using the motion vector stored in the buffer; and performing inter-prediction decoding using the motion vector of the block to be decoded. According to the present invention, the size of a memory space required to store a motion vector may be reduced.
Abstract:
An apparatus for transmitting and receiving high-speed data having various data volumes are provided to interface a dependent signal selectively while stably receiving various high speed data. A dependent signal interface unit(130) converts dependent signals of various kinds into electrical signals of large volume through a medium and selectively interfaces the converted electrical signals through a high speed multi channel. A framer unit(120) receives the electrical signal to be selectively interfaced and multiplexes and maps the electrical signal by a giga bit unit to generate a multi channel frame signal. A transmission unit(110) receives the multi channel frame signal generated from the framer unit through the high speed multi channel to multiplex and transmit the multi channel frame signal by a serial signal of the set giga bit unit.
Abstract:
A parallel receiving device and a method thereof using FPGA are provided to improve price competitive by suing the FPGA at low cost instead of an ASIC(Application Specific Integrated Circuit) for time and cost. A super-high parallel converter(110) generates a first deskew signal by sampling and dividing the input data signal into a first parallel signal. An FPGA(Field Programming Gate Array)(120) divides each first parallel signals into second parallel signals. The first deskew signal is divided into second deskew signals. The FPGA controls the skew between second parallel signals in consideration of second deskew signals. Second parallel signals in which skew is controlled are performed.