About: SECAM is a research topic. Over the lifetime, 627 publications have been published within this topic receiving 2854 citations. The topic is also known as: Sequentiel couleur a memoire.
TL;DR: In this paper, an audio/video production system facilitates professional quality image manipulation and editing using an enhanced general-purpose hardware A program input may be translated into any of a variety of graphics or television formats, including NTSC, PAL, SECAM and HDTV, and stored as data-compressed images, using any of several commercially available methods such as Motion JPEG, MPEG, etc.
Abstract: An audio/video production system facilitates professional quality image manipulation and editing using an enhanced general-purpose hardware A program input may be translated into any of a variety of graphics or television formats, including NTSC, PAL, SECAM and HDTV, and stored as data-compressed images, using any of several commercially available methods such as Motion JPEG, MPEG, etc While being processed, the images may be re-sized to produce a desired aspect ratio or dimensions using conventional techniques such as pixel interpolation Frame rate conversion to and from conventional formats is performed by using the techniques employed for film-to-NTSC and film-to-PAL transfers, or by inter-frame interpolation, all well known in the art By judicious selection of the optimal digitizing parameters, the system allows a user to establish an inter-related family of aspect ratios, resolutions, and frame rates, yet remain compatible with currently available and planned graphics and television formats
TL;DR: In this paper, the authors propose a method of selecting for further processing (e.g., display) a desired television channel suitable for use in a television receiver capable of receiving both analog (i.e., NTSC, PAL or SECAM) and digital (e., ATSC or DTB) television signals.
Abstract: The invention comprises a method of selecting for further processing (e.g., display) a desired television channel suitable for use in a television receiver capable of receiving both analog (e.g., NTSC, PAL or SECAM) and digital (e.g., ATSC or DTB) television signals. The method provides appropriate user feedback such that channel selection is effected in a relatively rapid manner utilizing one of a direct channel selection, an electronic program guide selection process, a picture in picture montage selection process or a combination thereof. One embodiment of the invention implements a method for masking the channel selection latency period inherent in ATSC-like television systems.
TL;DR: The field of the efficient coding of color television signals is reviewed, pushed primarily by the desire in the television area to find digital coding standards accepted by both broadcasters and carriers and suitable for use with NTSC, PAL and SECAM television systems.
Abstract: This paper reviews the field of the efficient coding of color television signals. Because this paper is perhaps the first review on this topic, some background is given in the areas of colorimetry, visual perception of color and color television systems. We assume that the reader has some familiarity with luminance encoding techniques. Coding techniques themselves are divided into two broad groups: component coding methods in which each component (usually three) is coded separately, and composite coding methods in which the composite television signal with its "color" modulated subcarrier is processed as a single entity. Both approaches are covered in detail. The field is still growing, pushed primarily by the desire in the television area to find digital coding standards accepted by both broadcasters and carriers and suitable for use with NTSC, PAL and SECAM television systems. We discuss this aspect by comparing composite and component coding methods.
TL;DR: In this article, a non-invasive or minimally invasive intermediate frequency (I.F.) probe is disclosed for use as part of a broadcast audience measurement system, which can be used both to acquire a representation of a tuned signal and to inject a recognition signal into the tuned signal.
Abstract: A non-invasive or minimally invasive intermediate frequency (I.F.) probe is disclosed for use as part of a broadcast audience measurement system. The probe can be used both to acquire a representation of a tuned signal and to inject a recognition signal into a tuned signal. The probe is configurable for use with both analog (e.g., NTSC, PAL or SECAM) and digital (e.g., ATSC) television broadcasts. Optionally, when in the injection mode, the I.F. probe can be used with another sensor;to determine which of several inputs to a monitored receiver is providing the audio and/or video output(s) selected by an audience member.
TL;DR: In this paper, a system and method for decoding a video bitstream and displaying the video with 3:2 pull-down using a frame buffer whose size is not sufficient to hold an entire decoded frame was presented.
Abstract: A system and method for decoding a video bitstream (30) and displaying (26) the video with 3:2 pull-down using a frame buffer (24) whose size is not sufficient to hold an entire decoded frame. This is accomplished by using the additional time required by the display with 3:2 pull-down to decode (12) a portion of the frame for a second time. The present invention provides memory savings, additional flexibility in decoder design, and reductions in memory controller (22) complexity and power consumption. In the case of MPEG-2 decoders, the present invention allows the implementation of PAL/SECAM main profile at main level decoders with 3:2 pull-down using only a 16 megabit memory.