12-29 6,074

全系列原盘画质一般，制作非常混乱。原生分辨率为 720p，官方采用了多种劣质拉升算法，导致线条呈现多种画风：第一季时而锐利有严重的锯齿和振铃，时而模糊带有轻微锯齿；第二季则全部较糊，但时而带有大量细碎锯齿，时而带有轻微的粗糙锯齿。两季度暗场都有较严重的色带，其中第二季更严重一些。特典部分的规格更是五花八门，各种奇奇怪怪的交错源，有的拉丝，有的带缟，有的重复，有的正常，更有甚者是以上四种情况的排列组合，还有带缟剪辑缩放的，基本上无解。

处理方面，我们根据实时分析结果自动选择逆向拉伸重构的流程，并调整了逆向拉伸带来的锐化效果，然后附加适当的滤镜清除残留的锯齿和振铃，让各种算法得到的结果相近，以尽量统一画风。最后是常规的自适应去色带、补偿性锐化和自适应降噪。对于特典，我们人工挑选出了带缟的画面，通过拆场逆向拉伸解缟，然后做了时域稳定以改善线条的时域抖动现象，最后使用具有较强抗锯齿效果的倍高滤镜拉升回来，具体可看第 4 组对比图。部分特典出现了带缟锐化的情况，导致缟缟周围有一圈缟状晕轮，这东西实在奇葩，只好硬着头皮拆场去晕轮然后再解缟，具体可看第 1 组对比图。对于带缟缩放导致没法通过逆向拉伸处理的，我们使用了强力 AA 加收线锐化处理，具体可看最后一组对比图。剩下的就是对症下药，进行反交错、IVTC 等操作，就不再赘述了。

部分剧集内封评论音轨。

10-bit 1080p HEVC

https://bangumi.moe/torrent/658e84555eebfa000706f382

https://share.acgnx.se/show-15196304ada7107601f160298ad2529120b0b9f6.html

https://www.acgnx.se/show-15196304ada7107601f160298ad2529120b0b9f6.html

https://acg.rip/t/294834

http://share.dmhy.org/topics/view/659475_VCB-Studio_IS_Infinite_Stratos_IS_10-bit_1080p_HEVC_BDRip_S1-S2_OVAs_Fin.html

https://nyaa.si/view/1761197

MediaInfo

General
Unique ID                                : 79638172282761758973981768225125452020 (0x3BE9C10AD5826C0DE212256E543248F4)
Complete name                            : /Users/SAYA IS ∞ LOLICON!/[VCB-Studio] IS Infinite Stratos/[VCB-Studio] IS Infinite Stratos [Ma10p_1080p]/[VCB-Studio] IS Infinite Stratos [04][Ma10p_1080p][x265_flac_aac].mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 1.41 GiB
Duration                                 : 24 min 10 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 8 321 kb/s
Frame rate                               : 23.976 FPS
Encoded date                             : 2023-03-23 03:46:31 UTC
Writing application                      : mkvmerge v48.0.0 ('Fortress Around Your Heart') 64-bit
Writing library                          : libebml v1.4.0 + libmatroska v1.6.0

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main [email protected]@High
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 24 min 10 s
Bit rate                                 : 7 363 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.148
Stream size                              : 1.24 GiB (88%)
Writing library                          : x265 3.5+98-g3449bc85e+20-gc1a540a56:[Windows][clang 15.0.7][64 bit] Kyouko 10bit+8bit+12bit
Encoding settings                        : rc=crf / crf=14.0000 / qcomp=0.67 / qpstep=4 / stats-write=0 / stats-read=0 / vbv-maxrate=48000 / vbv-bufsize=50000 / vbv-init=0.9 / min-vbv-fullness=50.0 / max-vbv-fullness=80.0 / crf-max=0.0 / crf-min=0.0 / qscale-mode=0 / no-lossless / no-cu-lossless / aq-mode=3 / no-limit-aq1 / aq-strength=1.00 / aq-bias-strength=1.00 / limit-aq1-strength=1.00 / cbqpoffs=-2 / crqpoffs=-2 / ipratio=1.40 / pbratio=1.20 / psy-rd=2.00 / psy-rdoq=1.00 / psy-bscale=300 / psy-pscale=256 / psy-iscale=96 / deblock=-1:-1 / ref=5 / limit-refs=0 / no-limit-modes / bframes=16 / b-adapt=2 / bframe-bias=0 / b-pyramid / b-intra / weightp / weightb / min-keyint=1 / max-keyint=360 / rc-lookahead=240 / gop-lookahead=0 / scenecut=40 / hist-scenecut=0 / radl=0 / max-cu-size=32 / min-cu-size=8 / me=3 / subme=7 / merange=32 / rdoq-level=1 / rd=5 / rdpenalty=0 / dynamic-rd=0.00 / rd-refine / refine-tolerance=1.500 / ----- / cutree / cutree-strength=1.65 / cutree-minqpoffs=-69.00 / cutree-maxqpoffs=69.00 / no-sao / rect / no-amp / no-open-gop / wpp / no-pmode / no-pme / no-psnr / no-ssim / nr-intra=0 / nr-inter=0 / no-constrained-intra / no-strong-intra-smoothing / max-tu-size=16 / tu-inter-depth=4 / tu-intra-depth=4 / limit-tu=0 / qg-size=32 / qpmax=69 / qpmin=0 / ----- / cpuid=1111039 / frame-threads=4 / numa-pools=+ / log-level=2 / input-csp=1 / input-res=1920x1080 / interlace=0 / level-idc=0 / high-tier=1 / uhd-bd=0 / no-allow-non-conformance / no-repeat-headers / no-aud / no-hrd / info / hash=0 / no-temporal-layers / lookahead-slices=0 / no-splice / no-intra-refresh / no-ssim-rd / signhide / tskip / max-merge=5 / temporal-mvp / no-frame-dup / no-hme / no-analyze-src-pics / no-sao-non-deblock / selective-sao=0 / no-early-skip / no-rskip / no-fast-intra / no-tskip-fast / no-splitrd-skip / zone-count=0 / no-strict-cbr / no-rc-grain / no-const-vbv / sar=0 / overscan=0 / videoformat=5 / range=0 / colorprim=1 / transfer=1 / colormatrix=1 / chromaloc=0 / display-window=0 / cll=0,0 / min-luma=0 / max-luma=1023 / log2-max-poc-lsb=8 / vui-timing-info / vui-hrd-info / slices=1 / no-opt-qp-pps / no-opt-ref-list-length-pps / no-multi-pass-opt-rps / scenecut-bias=0.05 / hist-threshold=0.03 / no-opt-cu-delta-qp / no-aq-motion / no-hdr10 / no-hdr10-opt / no-dhdr10-opt / no-idr-recovery-sei / analysis-reuse-level=0 / analysis-save-reuse-level=0 / analysis-load-reuse-level=0 / scale-factor=0 / refine-intra=0 / refine-inter=0 / refine-mv=1 / refine-ctu-distortion=0 / no-limit-sao / ctu-info=0 / no-lowpass-dct / refine-analysis-type=0 / copy-pic=1 / max-ausize-factor=1.0 / no-dynamic-refine / no-single-sei / no-hevc-aq / no-svt / no-field / qp-adaptation-range=1.00 / scenecut-aware-qp=0conformance-window-offsets / right=0 / bottom=0 / decoder-max-rate=0 / no-vbv-live-multi-pass
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709

Audio #1
ID                                       : 2
Format                                   : FLAC
Format/Info                              : Free Lossless Audio Codec
Codec ID                                 : A_FLAC
Duration                                 : 24 min 10 s
Bit rate mode                            : Variable
Bit rate                                 : 777 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 11.719 FPS (4096 SPF)
Bit depth                                : 16 bits
Compression mode                         : Lossless
Stream size                              : 134 MiB (9%)
Writing library                          : libFLAC 1.3.2 (2017-01-01)
Language                                 : Japanese
Default                                  : Yes
Forced                                   : No
MD5 of the unencoded content             : 432C4F05683B12CFD3ACF47965E496A2

Audio #2
ID                                       : 3
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : A_AAC-2
Duration                                 : 24 min 10 s
Bit rate                                 : 179 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 30.9 MiB (2%)
Title                                    : Commentary
Language                                 : Japanese
Default                                  : No
Forced                                   : No

Menu
00:00:00.000                             : en:Chapter 01
00:00:15.014                             : en:Chapter 02
00:01:44.853                             : en:Chapter 03
00:10:00.807                             : en:Chapter 04
00:22:09.827                             : en:Chapter 05
00:23:39.834                             : en:Chapter 06