Preprocessor, Postprocessor or Encoder

We are constantly asked whether our IQ264 product is an encoder, a preprocessor, or a postprocessor. The response? None of the above. It is a plugin that is integrated with an encoder, currently x264. But what is the difference between … Read More


Thoughts on Netflix’s Move Toward Perceptual Video Quality Metrics

Netflix recently published a blog post titled “Toward a Practical Perceptual Video Quality Metric” that announced their development of a new video quality metric, termed Video Multimethod Assessment Fusion (VMAF), that they claim better reflects human perception of video quality … Read More


Subjective Test Methodology Design

As adoption of HEVC has slowed, companies are taking another look at what additional efficiencies can be gained with their existing H.264-compliant encoders.  Evaluating the benefits of different encoding algorithms, to determine how many bits can be saved while maintaining … Read More


Subjective Testing Part 4: Post-Test Analysis

Introduction EuclidIQ’s blog series on subjective testing has presented a “practical” subjective test methodology that we’ve designed to produce meaningful results while not being prohibitive in terms of time or cost.  In Part 1, we detailed the general test set-up, … Read More

Netflix and the Art of Content-Adaptive Encoding

When Netflix speaks, everyone in the streaming video industry tends to listen. For instance, in a recent blog post titled “Per-Title Encode Optimization,” Netflix announced that it is re-encoding its entire collection of videos using bitrates appropriate to the content in each particular video. This is a … Read More

Unified Importance Map in action

Why EuclidIQ Uses Subjective Testing (Part1)

“We need to do subjective testing.” This simple yet daunting directive was given by our company CEO, Richard Wingard, in a September 2014 meeting.  The engineers in the room recognized the significant challenges involved in subjective testing, but we all … Read More


Understanding Industry Approaches to Perceptual Quality Optimization

A recent article in Streaming Media magazine, which featured EuclidIQ and its IQ264 perceptual quality optimization technology, summed up the industry’s uncertainty around the term “video optimization”. Two other companies, Beamr and Cinova, were also profiled in the article. … Read More


What People are Watching and Why It Matters for Video Encoders (Part 2)

In a previous blog post, we surveyed the landscape of the types of videos that people watch and noted that many of the most popular types of videos (music, sports, gaming, action movies) contain a common element: motion.  We also … Read More


What’s So Great About EuclidVision?

With the proliferation of digital video in recent years in applications as diverse as cable TV live and on-demand broadcasting, Internet streaming, DVD and Blu-ray disc storage, and digital cinema with 4K resolution, the need for “better” video compression is … Read More


Further Thoughts on Codec Evaluations

Co-Authored By Vadim Tkhor  In two previous articles [1, 2] on compression performance, Donald Pian explained how two different codecs can be compared by measuring their encoding sizes for  the same video data at the same quality, with quality measured by peak-signal-to-noise-ratio … Read More