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Developed exclusively by the Grass Valley engineering team, innovative high-quality, high-speed codecs for video editing and conversion are at the heart of Grass Valley products, and are also licensed for use by other well-known brands.
When it comes to speed, faster is simply better. But when considering "image quality," as accuracy is improved, the amount of data increases significantly, and this can degrade the efficiency of the NLE system as a whole. Increased amounts of data mean increased storage costs and lower throughput. To ensure that the optimum specifications are achieved for the right Return on Investment (ROI), you must think about the system in its entirety, and compression technology becomes a critical feature. Compression that can reduce the quantity of data without any degradation is ideal and is the only way to achieve the balance between image quality and data quantity. Grass Valley compression codecs achieve this balance.
By employing technologies such as two-pass variable bitrate (VBR) compression, advanced motion-estimation algorithms and full YUV colorspace processing at every step, Grass Valley codecs provide the highest picture quality preservation at the highest speed.
When it comes to real-time editing of HDV and other MPEG formats, the leadership of Grass Valley in advanced video codec technologies becomes clear. EDIUS nonlinear editing software supports editing of true native HDV MPEG-2 transport streams in real time. For increased real-time performance and the highest image quality for editing, HDV footage can be captured using the Canopus® HQ codec. The Canopus HQ codec is an innovative video compression algorithm developed by Grass Valley, for high-quality HD resolution video editing. The Canopus HQ codec supports the HDV resolutions employed by Sony and JVC, 1440 x 1080 and 1280 x 720 respectively, with intra-field coding as opposed to inter-frame coding featured with HDV. This provides high-quality, frame-accurate editing of footage, while maintaining the image quality at 4:2:2 chroma sub-sampling, compared to HDV's 4:2:0 sub-sampling.
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Developed through years of experience in video editing technology, the Canopus HD software codec provides high-quality, real-time compression, real-time processing, filtering and decoding of multiple HD streams. The Canopus HD software codec is native DVCPRO HD (SMPTE 370M) compliant and supports HD signal recording and playback from the hard disk to HD-D5, HDCAM or DVCPRO HD VTRs.
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Built with scalable technology, this codec offers the highest image quality and performance available today in any HD editing platform. The Canopus HQ codec not only provides superior Luma and Chroma sampling of HD video, but also features an adjustable bitrate, for increased video quality when capturing and encoding on high-performance systems.
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