SMPTE RP 222-2003 Standard Definition Evaluation Materials for Digital Television《SMPTE推荐实施规程 数字电视的标准清晰度评估材料》.pdf
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1、RP 222-2003 Page 1 of 15 Table of contents 1 Scope 2 Normative reference 3 Description of materials 4 Archiving and distribution formats 5 Representative pictures 6 Tables of evaluation materials Annex A Bibliography 1 Scope 1.1 This practice specifies standard definition (BT.601-5) video materials
2、that are available at reproduction and administrative cost from SMPTE for use in evaluating digital television technology and processing. 1.2 It describes the attributes of the materials, which have made them valuable in systems evaluation. Such description is not intended to suggest these materials
3、 may not be valuable in other aspects of evaluation. 1.3 It describes, to the extent they are known, the conditions under which the materials were captured and the post-processing which was applied. The materials were originally archived in D-1 tape format. 1.4 Materials are separately available in
4、525-line and 625-line digital video standards. The materials are archived on digital data media. Distribution is designed to provide consistent, high quality delivery of the materials. 1.5 This practice presents representative pictures from the materials. 2 Normative reference The following standard
5、 contains provisions that, through reference in this text, constitute provisions of this practice. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based in this practice are encouraged to investigate the possibility of app
6、lying the most recent edition of the standard indicated below. ITU-R BT.601-5 (1995), Studio Encoding Parameters of Digital Television for Standard 4:3 and Wide-Screen 16:9 Aspect Ratios RP 222-2003 Copyright 2002 by THE SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS 595 W. Hartsdale Ave., White
7、 Plains, NY 10607 (914) 761-1100 Approved March 12, 2003 SMPTE RECOMMENDED PRACTICE Standard Definition Evaluation Materials for Digital Television RP 222-2003 Page 2 of 15 pages 3 Description of materials The standard definition materials described herein are derived principally from vintage source
8、s, the ITU test tapes (BT.802-1). The tapes were obtained from the CBC Engineering Department in Montreal, Canada. They have been augmented with 625-line scenes numbered 13 18, which were contributed by Radio Televisione Italiana (RAI.) The current materials were selected to be the most useful of th
9、e originals, to represent the range of attributes in the originals, and to fit on a 20-minute video tape. In many cases the pedigree of the older materials is not complete. The information contained in tables 1 and 2 summarizes the characteristics of the 525-line and 625-line materials, respectively
10、. This practice relies on the descriptions contained in previous documentation, where available. The data in tables 1 and 2 is defined as follows. 3.1 Material identifiers Columns in tables 1 and 2 labeled Scene index, Title, and Starting time code of scene are self-explanatory. Starting/ending file
11、name of scene are the data media filenames of the first picture in the scene, which immediately follows the title and picture immediately following the scene. 3.2 Attributes of source The selection of materials of particular video scenes for inclusion is based on a list of desirable attributes. The
12、Attributes to be examined and Motion are based on the original documentation of the ITU test materials, where available, and on the review by SMPTE. Attributes to be examined in scene indicates those properties which may make the material useful in evaluating digital systems. Other uses of these mat
13、erials are to be expected. The degree of Motion in the scene is noted. 3.3 Source of scene In the Source column of tables 1 and 2, six identifiers are used. In the interpretation of this practice, these terms are best defined as: Slide film-based material scanned, filtered, and sampled to ITU-R BT.6
14、01 resolution Video existing video scene Component RGB component signals Camera generated by camera Camera/CG generated by camera and character generator Camera/SE generated by camera with special effects All of the 525-line materials (scenes 01 - 20) and scenes 01 - 12 of the 625-line materials are
15、 derived from ITU test tapes. For historical and archival purposes, the corresponding scenes on the ITU tapes are designated as ITU index. Scenes numbered 13 18 for the 625-line system were obtained from RAI and are not indexed to prior standards. Some of the original scenes were mildly corrupted on
16、 the available copies, but were still regarded as potentially useful. To improve the utility of the selected scenes, they have been restored to be free from any visible dropouts or other errors. Although these scenes may differ from other copies of the ITU tapes, the only differences apparent to a s
17、ubjective viewer should be potential defects in other versions of the tape. No other processing or lossy compression has been applied to these materials. 4 Archiving and distribution 4.1 Production of archived data All video materials described in clause 3 were delivered to SMPTE on D-1 format tape.
18、 The archival tapes were produced using ITU-R BT.601 format. They were recorded on digital tape format (DTF) as defined RP 222-2003 Page 3 of 15 pages in 4.2. The best professional effort was used to insure the digital video ITU-R BT.601 samples were accurately reproduced from the D-1 tapes. VTR pla
19、yback was without the need to apply the error concealment function. Most of the video scenes are 40 seconds in length: 5 seconds of black, 5 seconds of title slate, and 30 seconds of active picture. Some of the scenes are expanded with black frames to fit on 5-second boundaries. 4.2 Data format Tabl
20、es 1 and 2 describe sequentially named files organized into scenes. Starting/ending filename of scene identify the in-point and out-point for the pictures in each scene. Five seconds of scene title precedes the Starting filename. Each file contains an individual picture. Each 525-line frame is desig
21、nated, 525.XXXXX.yuv and each 625-line file is designated 625.XXXXX.yuv, where XXXXX is a five-digit file sequence number. There is a one-to-correspondence between pictures on the video tape and in data. Each picture is stored as a file in 8-bit YUV format having 720 samples per line. Error checking
22、 and correction is that provided by the data system or media. The 525-line and 625-line materials were also produced as a set of DVD-Rs. The data media were written using native system file copy commands. Tables 3 and 4 describe the arrangement of the scenes on the DVD-R discs for 525-line and 625-l
23、ine pictures, respectively. 4.3 Distribution of video tapes Submasters of the video materials are made from the archived data media. The submasters are SMPTE format D-1 in order to insure the 8-bit data integrity of the original video material. Distribution copies are made by duplication to any appr
24、opriate uncompressed video format such as SMPTE D-1 or D-5 using the best professional effort to insure accurate digital video sample reproduction. The distributed video tapes are not guaranteed to be bit-level perfect. Distibution of these materials is in an uncompressed format. Users should be awa
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