摘要:
Disclosed herein is a method for encoding data by determining a range where the data includes a sequence of symbols each associated with a probability of occurrence are disclosed herein. The method includes initializing the range, identifying a symbol set from the sequence of symbols, selecting at least one pre-calculated range adjustment vector based on the identified symbol set, adjusting the range using the pre-calculated range adjustment vector and encoding the identified symbol set based on the adjusted range.
摘要:
Disclosed herein is a method for selectively filtering and encoding a video signal having at least one frame including a matrix of pixels. The method includes selecting a set of pixels within the frame, determining an initial performance measurement for the selected set of pixels, provisionally applying each filter to the set of pixels, determining a second performance measurement for each filter provisionally applied to the selected set of pixels, and applying the at least one filter to the selected set of pixels to generate a reconstruction of the frame if the at least one filter is determined to have a second performance measurement that is better than the initial performance measurement.
摘要:
A method for decoding compressed video information is disclosed. The video information can include a plurality of frames each having a plurality of blocks. The method reading, from the video information, a segment map associating at least some of the plurality of blocks in a first frame of the plurality of frames with at least one segment identifier, reading, from the video information, a current block to be decoded by a decoder, reading, from the segment map, a segment identifier that is associated with the current block, reading, from the video information, at least one segment parameter associated with the segment identifier that is associated with the current block and decoding the current block using the at least one segment parameter associated with the segment identifier that is associated with the current block.
摘要:
Methods for decoding frames of compressed video information are disclosed. Each frame includes a plurality of blocks having a prediction stage parameter and a residual error attribute. One method includes categorizing each of the blocks into categories based on at least one of the prediction stage parameter or the residual error attribute, determining a loop filter strength value to each of the categories, and filtering the boundary adjacent to at least one of the blocks using the loop filter strength assigned to the category in which that block is categorized.
摘要:
A method for encoding and decoding a video signal having frames with blocks comprised of pixels. The method reduces the complexity of the video signal to be encoded by applying a filter scheme to the input data stream in an encoder and later reversing the filter scheme in a decoder. A number of filter schemes may be tested to determine the best filter scheme that most reduces the number of distinct color values per color plane. The best filter scheme is used to filter the data to be encoded. Filter information of the best filter scheme is included in the encoded data to enable the decoder to identify the best filter scheme in order to apply the best filter scheme in reverse to re-create the original data stream.
摘要:
Disclosed herein is a method for encoding a video signal having at least one frame with a plurality of blocks including a current block, including generating, for at least a selected pixel in the current block, a predicted value for at least one pixel located in a row i and a column j of the current block using a processor and according to the following equation: Xij=Li+Aj−C; wherein Xij is the predicted value, Li is the value of a pixel to the left of the current block, Aj is the value of a pixel in a row above the current block and C is the value of a pixel in the row above and the column to the left of the current block and encoding the current block using the predicted value.
摘要翻译:本文公开了一种用于编码具有至少一个帧的视频信号的方法,所述至少一个帧包括包括当前块的多个块,包括为当前块中的至少一个选择的像素生成位于 行i和当前块的列j使用处理器并根据以下等式:Xij = Li + Aj-C; 其中Xij是预测值,Li是当前块左侧的像素的值,Aj是当前块上方的像素的值,C是上述行中的像素的值, 列,并使用预测值对当前块进行编码。
摘要:
Disclosed herein is a method for encoding a video signal having at least one frame with a plurality of blocks including a current block, including generating, for at least a selected pixel in the current block, a predicted value for at least one pixel located in a row i and a column j of the current block using a processor and according to the following equation: Xij=Li−C; wherein Xij is the predicted value, Li is the value of a pixel to the left of the current block, is the value of a pixel in a row above the current block and C is the value of a pixel in the row above and the column to the left of the current block and encoding the current block using the predicted value.
摘要:
Disclosed herein is a method for digital video encoding prediction comprising creating a constructed reference frame using an encoder and compressing a series of source video frames using the constructed reference frame to obtain a bitstream including a compressed digital video signal for a subsequent decoding process. The constructed reference frame is omitted from the series of digital video frames during the subsequent viewing process.
摘要:
A method for decoding compressed video information is disclosed. The video information can include a plurality of frames each having a plurality of blocks. The method reading, from the video information, a segment map associating at least some of the plurality of blocks in a first frame of the plurality of frames with at least one segment identifier, reading, from the video information, a current block to be decoded by a decoder, reading, from the segment map, a segment identifier that is associated with the current block, reading, from the video information, at least one segment parameter associated with the segment identifier that is associated with the current block and decoding the current block using the at least one segment parameter associated with the segment identifier that is associated with the current block.
摘要:
Encoding a stream of video data including at least one frame having a plurality of rows of blocks video may include encoding the plurality of rows using a second encoding scheme, wherein the input to encoding each row includes information contained in an adjacent row, dividing the plurality of rows into a plurality of partitions, wherein at least two adjacent rows are placed into separate partitions, further encoding each of the plurality of the partitions using a first encoding scheme, recording a value indicative of the number or of partitions into which the plurality of rows have been divided, and recording a value indicative of the location of the partitions within the encoded video data.