Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`WHATIS CLAIMEDIS:
`
`CLAIMS
`
`1. A decoding system that decodes a video stream, which is encoded video information,
`
`comprising:
`
`an attribute information acquirer that acquiresfirst attribute information, indicating
`
`whether a dynamic range of luminance ofthe video stream is a first dynamic range or a second
`
`dynamic range that is wider than the first dynamic range;
`
`a decoder that acquires the video steam and generates decoded video information by
`
`decoding the video stream; and
`
`an outputter that, in a case wherethefirst attribute information indicates the second
`
`dynamic range, outputs the decoded video information, along with maximum luminance
`
`information indicating a maximum luminance ofthe video stream in accordance with the second
`
`dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamic range, and
`
`wherein, in a case where the dynamic range of luminance of the video stream is
`
`expressed by maximum luminanceofall pictures in the video stream,as the type of the second
`
`dynamic range,
`
`the outputter outputs the decoded video information, along with maximum luminance
`
`information indicating the maximum luminanceofall pictures in the video stream.
`
`{P61565 04498254.DOC}
`
`47
`
`
`
`Panasonic Ref. No.: P0623859US04
`
`WHATIS CLAIMEDIS:
`
`CLAIMS
`
`1. A decoding system that decodes a video stream, which is encoded video information,
`
`comprising:
`
`an attribute information acquirer that acquiresfirst attribute information, indicating
`
`whether a dynamic range of luminance ofthe video stream is a first dynamic range or a second
`
`dynamic range that is wider than the first dynamic range;
`
`a decoder that acquires the video steam and generates decoded video information by
`
`decoding the video stream; and
`
`an outputter that, in a case wherethefirst attribute information indicates the second
`
`dynamic range, outputs the decoded video information, along with maximum luminance
`
`information indicating a maximum luminance ofthe video stream in accordance with the second
`
`dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamic range, and
`
`wherein, in a case where the dynamic range of luminance of the video stream is
`
`expressed by maximum luminanceofall pictures in the video stream,as the type of the second
`
`dynamic range,
`
`the outputter outputs the decoded video information, along with maximum luminance
`
`information indicating the maximum luminanceofall pictures in the video stream.
`
`{P61565 04498254.DOC}
`
`47
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`2. A decoding system that decodes a video stream, which is encoded video information,
`
`comprising:
`
`an attribute information acquirer that acquiresfirst attribute information, indicating
`
`whether a dynamic range of luminance ofthe video stream is a first dynamic range or a second
`
`dynamic range that is wider than the first dynamic range;
`
`a decoder that acquires the video steam and generates decoded video information by
`
`decoding the video stream; and
`
`an outputter that, in a case wherethefirst attribute information indicates the second
`
`dynamic range, outputs the decoded video information, along with maximum luminance
`
`information indicating a maximum luminance ofthe video stream in accordance with the second
`
`dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamicrange, and
`
`wherein, in a case where the dynamic range of luminanceof the video stream is
`
`expressed by maximum luminanceofall pictures in the video stream, and maximum luminance
`
`for each of groups made upofoneor a plurality of pictures included in the video stream,as the
`
`type of the second dynamic range,
`
`the outputter outputs the decoded video information, along with the maximum
`
`luminance information indicating the maximum luminanceofall pictures in the video stream and
`
`the maximum luminance of each of the groups.
`
`{P61565 04498254.DOC}
`
`48
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`3. A decoding system that decodes a video stream, which is encoded video information,
`
`comprising:
`
`an attribute information acquirer that acquiresfirst attribute information, indicating
`
`whether a dynamic range of luminance ofthe video stream is a first dynamic range or a second
`
`dynamic range that is wider than the first dynamic range;
`
`a decoder that acquires the video steam and generates decoded video information by
`
`decoding the video stream; and
`
`an outputter that, in a case wherethefirst attribute information indicates the second
`
`dynamic range, outputs the decoded video information, along with maximum luminance
`
`information indicating a maximum luminance ofthe video stream in accordance with the second
`
`dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range, the first attribute information also indicates type of the second dynamic range, and
`
`wherein, in a case where luminance is expressed by a base video stream, and an enhanced
`
`video stream, whichis a video stream to enhance the luminanceofthe base video stream, as the
`
`type of the second dynamic range,
`
`the decoder generates base video information by decoding the base video stream,
`
`an enhanced video information by decoding the enhanced video stream, and generates the
`
`decodedvideo information based on the base video information and the enhanced video
`
`information, and
`
`the outputter outputs the decoded video information, along with the maximum
`
`luminance information.
`
`{P61565 04498254.DOC}
`
`49
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`4. The decoding system according to Claim 1,
`
`wherein the attribute information acquirer also acquires second attribute information,
`
`indicating a maximum luminanceofthe video stream, and
`
`wherein the outputter also outputs the maximum luminance information, including the
`
`second attribute information.
`
`5. A decoding method of a video stream, which is encoded video information,
`
`comprising:
`
`acquiring first attribute information, indicating whether a dynamic range of luminance of
`
`the video stream is a first dynamic range or a second dynamicrange that is wider thanthefirst
`
`dynamic range;
`
`acquiring the video steam and generating decoded video information by decoding the
`
`video stream; and
`
`outputting, in a case wherethefirst attribute information indicates the second dynamic
`
`range, the decoded video information, along with maximum luminance information indicating a
`
`maximum luminance of the video stream in accordance with the second dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamic range, and
`
`wherein, in a case where the dynamic range of luminance of the video stream is
`
`expressed by maximum luminanceofall pictures in the video stream,as the type of the second
`
`dynamic range,
`
`outputting the decoded video information, along with maximum luminanceinformation
`
`indicating the maximum luminanceofall pictures in the video stream.
`
`{P61565 04498254.DOC}
`
`50
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`6. A decoding method of a video stream, which is encoded video information,
`
`comprising:
`
`acquiring first attribute information, indicating whether a dynamic range of luminance of
`
`the video stream is a first dynamic range or a second dynamicrange that is wider than the first
`
`dynamic range;
`
`acquiring the video steam and generating decoded video information by decoding the
`
`video stream; and
`
`outputting, in a case wherethefirst attribute information indicates the second dynamic
`
`range, the decoded video information, along with maximum luminance information indicating a
`
`maximum luminance of the video stream in accordance with the second dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamicrange, and
`
`wherein, in a case where the dynamic range of luminanceof the video stream is
`
`expressed by maximum luminanceofall pictures in the video stream and maximum luminance
`
`for each of groups made upofoneor a plurality of pictures included in the video stream,as the
`
`type of the second dynamic range,
`
`outputting the decoded video information, along with the maximum luminance
`
`information indicating the maximum luminanceofall pictures in the video stream and the
`
`maximum luminance of each of the groups.
`
`{P61565 04498254.DOC}
`
`51
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`7. A decoding methodof a video stream, which is encoded video information,
`
`comprising:
`
`acquiring that acquiresfirst attribute information, indicating whether a dynamic range of
`
`luminanceof the video stream is a first dynamic range or a second dynamicrangethat is wider
`
`than the first dynamic range;
`
`acquiring the video steam and generating decoded video information by decoding the
`
`video stream; and
`
`outputting, in a case wherethefirst attribute information indicates the second dynamic
`
`range, the decoded video information, along with maximum luminance information indicating a
`
`maximum luminance of the video stream in accordance with the second dynamic range,
`
`wherein, in a case wherethefirst attribute information indicates the second dynamic
`
`range,the first attribute information also indicates type of the second dynamicrange, and
`
`wherein, in a case where luminance is expressed by a base video stream, and an enhanced
`
`video stream, whichis a video stream to enhance the luminanceofthe base video stream, as the
`
`type of the second dynamic range,
`
`generating base video information by decoding the base video stream, an
`
`enhanced video information by decoding the enhanced video stream, and generating the decoded
`
`video information based on the base video information and the enhanced video information, and
`
`outputting the decoded video information, along with the maximum luminance
`
`information.
`
`{P61565 04498254.DOC}
`
`52
`
`
`
`Attorney Docket No. P61565
`
`Panasonic Ref. No.: P0623859US04
`
`8. The decoding system according to Claim 2,
`
`wherein the attribute information acquirer also acquires secondattribute information,
`
`indicating a maximum luminanceofthe video stream, and
`
`wherein the outputter also outputs the maximum luminance information, including the
`
`second attribute information.
`
`9. The decoding system according to Claim 3,
`
`wherein the attribute information acquirer also acquires secondattribute information,
`
`indicating a maximum luminanceofthe video stream, and
`
`wherein the outputter also outputs the maximum luminance information, including the
`
`second attribute information.
`
`{P61565 04498254.DOC}
`
`53
`
`
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