Image Processing

Inexpensive yet powerful processors coupled with sophisticated compression algorithms have enabled the widespread use of video. It’s easy to see that compression algorithms such as h.264 and h.265 (HEVC) are essential considering that a 1080p60 signal at 24 bits per pixel requires 3 Gigabits/sec to communicate uncompressed. A “4k” Ultra HDTV signal would require an even higher bitrate!


Manipulating compressed signals requires expertise with their low-level syntax, for example NAL units for h.264. It also requires familiarity with sampling patterns such as 4:2:2 and 4:2:0. Cardinal Peak has this expertise and can use it to help your project succeed.

Another important issue when dealing with audio and video is how to multiplex the data for storage and transmission. Many different formats exist, some optimized for storage (e.g. .MOV) and some optimized for transmission (e.g. MPEG-2 Transport). Cardinal Peak’s expertise in these formats allows us to help you design systems that require conversion between formats while maintaining low latency and tight audio-video synchronization.

In addition, for many applications, video signals must be analyzed in real-time to extract useful information such as the presence of a target in the field of view. In security applications, detecting motion or objects is often important. Cardinal Peak is experienced at developing processing algorithms—called “analytics” in the security industry—for our customers’ unique needs.

Examples of video and image processing systems we’ve developed include:

  • A system for determining the aviation visibility from a series of images acquired under different weather conditions
  • A algorithm for detecting the presence of non-random motion in the field of view of a security camera under changing lighting conditions
  • A system for extracting biometric information from a video of a subject’s face

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