What Is 288 p

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Last updated: April 15, 2026

Quick Answer: 288p refers to a video resolution of 288 pixels in height, commonly paired with a width of 352 pixels (352x288), used primarily in early digital video formats like CIF for video conferencing and surveillance. It was standardized by the ITU-T in the late 1980s as part of H.261 and H.263 video codecs.

Key Facts

288p resolution is 352x288 pixels, known as CIF (Common Intermediate Format), defined by ITU-T in 1988
Used in early video conferencing systems and analog-to-digital video conversion
CIF resolution is exactly one-quarter the size of 4CIF (704x576), a standard in CCTV systems
288p was foundational for H.261, the first practical video compression standard, released in 1990
Modern streaming rarely uses 288p, but it remains relevant in legacy surveillance and low-bandwidth applications

Overview

288p is a video resolution standard referring to a vertical pixel count of 288, typically paired with a horizontal resolution of 352 pixels. This format, known as Common Intermediate Format (CIF), was developed to standardize video for digital transmission in early video conferencing and surveillance systems.

Established by the International Telecommunication Union (ITU-T) in the late 1980s, CIF became a cornerstone for video compression technologies. Though surpassed by higher resolutions today, 288p remains relevant in legacy systems and low-bandwidth environments where efficiency is prioritized over clarity.

Resolution: 288p specifically denotes 352x288 pixels, a format standardized as CIF for consistent digital video encoding across devices and platforms.
Origin: The CIF standard was formalized in ITU-T Recommendation H.261 in 1988, marking one of the first international agreements on digital video formats.
Aspect Ratio: CIF uses a 4:3 aspect ratio, matching standard-definition television formats common in the late 20th century.
Bandwidth Efficiency: At just 1–2 Mbps, CIF enabled real-time video transmission over early ISDN lines, making it ideal for 1990s video calls.
Legacy Use: Many analog CCTV systems still convert signals to CIF for digital recording, ensuring compatibility with older DVR systems.

How It Works

288p operates by encoding video frames at 352x288 pixels, balancing clarity and data efficiency. Designed for real-time communication, it compresses video using standardized codecs that reduce file size while maintaining synchronization between audio and video streams.

Term:CIF (Common Intermediate Format): A standardized resolution of 352x288 pixels introduced by ITU-T to unify video encoding across different systems and devices, enabling interoperability.
Frame Rate: CIF typically runs at 29.97 fps (NTSC) or 25 fps (PAL), ensuring smooth motion for video calls and surveillance monitoring.
Chroma Subsampling: Uses 4:2:0 chroma subsampling, reducing color data by half to cut bandwidth without significantly affecting perceived image quality.
Codec Support: Supported by H.261, H.263, and MPEG-2, making it a bridge between analog video and early digital compression technologies.
Storage: One hour of CIF video at 25 fps consumes approximately 1.3 GB when compressed, making it manageable for early digital storage systems.
Interlacing: While CIF itself is progressive, it was often used to convert interlaced analog signals into a digital format without motion artifacts.

Comparison at a Glance

The following table compares 288p (CIF) with other common video resolutions in terms of resolution, aspect ratio, and typical applications:

Resolution	Pixel Dimensions	Aspect Ratio	Typical Use Case	Bandwidth (Approx.)
288p (CIF)	352x288	4:3	Video conferencing, CCTV	1–2 Mbps
4CIF	704x576	4:3	High-resolution CCTV	2–4 Mbps
480p	720x480	16:9 or 4:3	DVD, early digital TV	3–5 Mbps
720p	1280x720	16:9	HD broadcasting, streaming	5–10 Mbps
1080p	1920x1080	16:9	Full HD, modern streaming	10–20 Mbps

While 288p is significantly lower in resolution than modern standards, its efficiency made it a foundational format for early digital video. It remains useful in niche applications where bandwidth or storage is limited, such as remote monitoring or archival systems.

Why It Matters

Though overshadowed by high-definition formats, 288p played a critical role in the transition from analog to digital video. Its standardization enabled interoperability across global communication systems, paving the way for modern video conferencing and surveillance infrastructure.

Historical Impact: CIF was the first widely adopted digital video standard, enabling the first generation of internet-based video calls in the 1990s.
Surveillance Legacy: Many existing CCTV systems still record at CIF resolution, ensuring compatibility with decades-old hardware and software.
Low-Bandwidth Use: In remote areas with limited internet, 288p remains practical for live video feeds due to its minimal data requirements.
Foundation for HD: The principles of CIF compression directly influenced the development of H.264 and later codecs used in streaming today.
Cost-Effective: CIF cameras and recorders are cheaper to produce and maintain, making them accessible for small businesses and home security.
Educational Value: Understanding 288p helps students and engineers grasp the evolution of video compression and resolution standards.

As technology advances, the importance of 288p lies not in its current performance but in its historical and practical role as a stepping stone to modern digital video ecosystems.