Seeing is Believing: Mobile Vision API Deep Dive
summary
Mobile Vision API provides face, barcode, text detectors that run on-device offline processing and are free; face detector returns positions, landmarks (eyes, nose, mouth), rotations, and probabilistic smiling/eye-open scores (0–1) but not identity, barcode reads 1D/2D payloads (ISBN, Wi‑Fi, driver license) even upside down and multiple per image, text returns blocks/lines/words for Latin scripts. Implementation needs Play Services, Android 4.2.2+, manifest metadata to predownload models, care with accuracy vs speed and releasing detectors; example app draws overlays (bounding boxes, emoji, blush) and works across skin tones.
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chapters (18)
- 0:00Introduction and speaker intro
- 1:40What is Mobile Vision API
- 2:44Why choose Mobile Vision API
- 4:09Face detection overview
- 9:10Barcode detection overview
- 11:17Text detection overview
- 13:23Text detection applications
- 14:26Getting started setup
- 17:37Detecting objects in static images
- 21:13Configuring face detector
- 24:02Checking detector availability
- 25:06Detecting faces in images
- 26:31Overlaying graphics on faces
- 28:15Face position and classification
- 29:41Detecting barcodes and text
- 32:09Real-time detection with camera
- 35:15Detecting multiple objects
- 36:40Resources and summary
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