GB/T 18995-2003
ActiveCinematography - Latent image identification on 16 mm, 35 mm and 65 mm motion-picture film - Specifications and dimensions
电影摄影术 在16 mm,35 mm和65 mm电影胶片上由制造厂印制的潜影标识 规范和尺寸
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 术语和定义 → 4 一般格式 → 5 人读检索码 Foreword → 1 Scope → 2 Normative References → 3 Terms and Definitions → 4 General Format → 5 Human-readable Key Numbers
Scope
1.1 This standard specifies the position and dimensions of machine-readable identification codes on 16 mm, 35 mm and 65 mm motion-picture film, which are machine-readable latent image key numbers. This standard also specifies the encoding format of these machine-readable codes and the scanning area and spectral characteristics of the scanner. 1.2 This standard also specifies the position, dimensions and content of human-readable identification (key) numbers on 16 mm, 35 mm and 65 mm motion-picture film used for original photography or intermediate printing. These motion-picture films also contain the machine-readable key numbers described in 1.1. Note: Usually these key numbers are exposed on the film during manufacture. 1.3 This standard further specifies the area optionally used by the manufacturer for printing specific film type identification information. 1.4 This standard also specifies the area on the film that shall not be exposed by the film manufacturer, reserved for the convenience of the user to record data. 1.5 Finally, this standard specifies optional frame indication marks for 35 mm and 65 mm film.
1.1 本标准规定了16 mm,35 mm和65 mm电影胶片上机读识别码的位置和尺寸，这些机读码是机读型的潜影检索码。本标准还规定了这些机读码的编码格式和扫描器的扫描区及光谱特性。 1.2 本标准还规定了拍摄原底或中间印制用的16 mm,35 mm和65 mm电影胶片上人读识别(检索)码的位置、尺寸和内容。这些电影胶片同时含有1.1中所述的机读检索码。 注:通常这些检索码在制造胶片时曝光在胶片上。 1.3 本标准进一步规定了由制造厂任选的印制特定胶片类型识别信息所用的区域。 1.4 本标准还规定了胶片上不让胶片制造厂曝光的区域，保留这区域是为方便用户记录数据。 1.5 最后本标准规定了35 mm和65 mm胶片任选的画幅指示标志。
Normative References
Keywords
Application Summary AI generated
Film manufacturers use this standard to define the position, dimensions, and format of latent image identifiers on 16 mm, 35 mm, and 65 mm motion-picture film. Post-production and projection facilities rely on these identifiers to recognize film types, locate frames, and perform precise editing. This standard ensures consistency across different manufacturers, improving efficiency and reliability in the film production workflow.
电影胶片制造商使用本标准来规范在16 mm、35 mm和65 mm胶片上印制潜影标识的位置、尺寸和格式。电影后期制作和放映单位依赖这些标识来识别胶片类型、检索画面和进行精确的剪辑。本标准确保了不同厂家生产的胶片在标识上的一致性，从而提高了电影制作流程的效率和可靠性。
AI Summary AI generated
This standard specifies the specifications and dimensions of latent image identifiers printed by manufacturers on 16 mm, 35 mm, and 65 mm motion-picture film, including the position, dimensions, encoding format, and scanning characteristics of both machine-readable and human-readable key numbers. It also covers areas for film type identification, user data reservation, and optional frame indication marks. By standardizing the identifier format, it ensures compatibility and traceability of films from different manufacturers in motion-picture production.
本标准规定了16 mm、35 mm和65 mm电影胶片上由制造厂印制的潜影标识的规范和尺寸，包括机读检索码和人读检索码的位置、尺寸、编码格式及扫描特性。标准还涉及胶片类型识别区域、用户数据保留区以及画幅指示标志。通过统一标识格式，确保不同厂家胶片在电影制作中的兼容性和可追溯性。
Key Sentences extracted from text
本标准规定了16 mm,35 mm和65 mm电影胶片上机读识别码的位置和尺寸，这些机读码是机读型的潜影检索码。
本标准还规定了拍摄原底或中间印制用的16 mm,35 mm和65 mm电影胶片上人读识别(检索)码的位置、尺寸和内容。
胶片制造时应在胶片上印制递增的人读检索码。
人读检索码应由二个字母字符和10个数字字符组成。
检索码头两个字母字符用以识别制造厂及胶片类型，所用字符集应为从A一直到Z的大写字母。
This standard specifies the position and dimensions of machine-readable identification codes on 16 mm, 35 mm and 65 mm motion-picture film, which are machine-readable latent image key numbers.
This standard also specifies the position, dimensions and content of human-readable identification (key) numbers on 16 mm, 35 mm and 65 mm motion-picture film used for original photography or intermediate printing.
During film manufacture, incrementing human-readable key numbers shall be printed on the film.
The human-readable key number shall consist of two alphabetic characters and ten numeric characters.
The first two alphabetic characters of the key number are used to identify the manufacturer and film type, and the character set used shall be capital letters from A to Z.