摘要:
[Problem] To provide an optical disc whose monoscopic and stereoscopic video images recorded thereon can be respectively played back on a playback device incapable of 3D display and on a 3D-capable playback device.[Means to Solve Problem] An optical disc includes an AV data recording and a navigation information area. The AV data recording area has TS, having a plurality of TSPBs and TSSBs are arranged in an interleaved manner, recorded thereon. TSPBs constitute a video stream representing monoscopic video. TSSBs constitute a video stream representing parallax video corresponding to the monoscopic video. The navigation information area has navigation information recorded therein. The navigation information has base location information and enhanced location information that is used only for stereoscopic video playback. The base location information indicates an area in which TSPBs are recorded. The enhanced location information indicates an area in which TSSBs are recorded.
摘要:
[Problem] To provide an optical disc whose monoscopic and stereoscopic video images recorded thereon can be respectively played back on a playback device incapable of 3D display and on a 3D-capable playback device.[Means to Solve Problem] An optical disc includes an AV data recording and a navigation information area. The AV data recording area has TS, having a plurality of TSPBs and TSSBs are arranged in an interleaved manner, recorded thereon. TSPBs constitute a video stream representing monoscopic video. TSSBs constitute a video stream representing parallax video corresponding to the monoscopic video. The navigation information area has navigation information recorded therein. The navigation information has base location information and enhanced location information that is used only for stereoscopic video playback. The base location information indicates an area in which TSPBs are recorded. The enhanced location information indicates an area in which TSSBs are recorded.
摘要:
An image coding apparatus using an encoder which places restrictions on the bit depth to codes a current image to be coded having a bit depth greater than a predetermined bit depth, and includes: a down-converter (102) which down-converts the current image into a base view image having a bit depth equal to or less than the predetermined bit depth; an MVC (multiview video coding) encoder (101) which codes the base view image and decodes the coded base view image to generate a reconstructed image; and a subtracter (103) which calculates differences between characteristics of pixel values of the pre-down-conversion current image and characteristics of the corresponding pixel values of the reconstructed image, and generates, using the calculated differences, a non-base view image having a bit depth equal to or less than the predetermined bit depth, wherein the MVC encoder (101) further codes the non-base view image.
摘要:
The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier, which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.
摘要:
A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.
摘要:
The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier, which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.
摘要:
A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.
摘要:
A moving picture decoding apparatus includes: a quantization matrix holding unit (202) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length decoding unit (201) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (202) and places the matrix ID in a coded stream Str.
摘要:
An image coding apparatus using an encoder which places restrictions on the bit depth to codes a current image to be coded having a bit depth greater than a predetermined bit depth, and includes: a down-converter (102) which down-converts the current image into a base view image having a bit depth equal to or less than the predetermined bit depth; an MVC (multiview video coding) encoder (101) which codes the base view image and decodes the coded base view image to generate a reconstructed image; and a subtracter (103) which calculates differences between characteristics of pixel values of the pre-down-conversion current image and characteristics of the corresponding pixel values of the reconstructed image, and generates, using the calculated differences, a non-base view image having a bit depth equal to or less than the predetermined bit depth, wherein the MVC encoder (101) further codes the non-base view image.
摘要:
The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation and quantization, and coding a quantization matrix that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code, wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value.